Unifying gravity with quantum mechanics remains a cornerstone challenge in physics, with information theory providing a transformative perspective through concepts like the holographic principle and entropic gravity.
Methods:
We derive an observer-independent information density field from coarse-grained Shannon entropy of classical matter configurations at nuclear scales, establish thermodynamically motivated coupling constants using hadronic physics, prove gauge invariance including novel information symmetries, and enhance experimental designs with detailed error budgets and theory differentiation.
Results:
The framework predicts modified gravitational lensing corrections and quantum phase shifts ( rad), verifiable within 1–5 years using precision astrometry and matter-wave interferometry, supported by comprehensive derivations, Python verification code, and professional diagrams.
Discussion:
This work positions information-theoretic gravity as a rigorous, testable paradigm that bridges classical relativity and quantum information, with potential extensions to broader unification while maintaining focus on gravitational interactions.
1 Introduction
Unifying gravity with quantum mechanics remains a cornerstone challenge in theoretical physics. General relativity (GR) describes gravity as spacetime curvature induced by the energy-momentum tensor (), while the Standard Model unifies electromagnetic, weak, and strong interactions under gauge symmetry (; ; ). Grand Unified Theories (GUTs) like SU(5) face empirical hurdles, including proton decay constraints (; ; ; ) and the hierarchy problem (; ).
Information theory offers a transformative perspective. The holographic principle suggests gravitational physics is encoded on lower-dimensional boundaries (; ; ), entropic gravity posits gravity as an emergent force from information displacement (), and quantum entanglement underpins spacetime emergence (; ). Wheeler’s “it from bit” hypothesis () and the Information Discrimination Theory () propose information as a fundamental substrate, with the latter providing a systematic framework for information dynamics across scales from quantum to cosmological.
This paper focuses on gravitational interactions mediated by a classical information density field, addressing three key objectives:
1. Theoretical Foundation: Establish a rigorous, observer-independent information field with clear physical derivation from classical matter configurations.
3. Empirical Validation: Provide concrete experimental predictions with detailed feasibility analysis, systematic error control (Figure 1), and differentiation from alternative theories.
FIGURE 1
The paper is structured as follows: Section 2 presents the theoretical framework, including field definitions, action principle, and field equations. Section 3 details phenomenological predictions, focusing on gravitational lensing and quantum phase shifts. Section 4 outlines the experimental validation strategy, with a prioritized roadmap (Table 1) and error analysis (Table 2). Section 5 provides computational verification with simulation results, including Python code for dimensional consistency and experimental predictions. Section 6 compares the framework with alternative gravitational theories (Table 3). Section 7 discusses future research directions. Section 8 summarizes contributions and implications.
TABLE 1
Experiment
Timeline
Feasibility
Impact
Cost
Key challenge
Neutron interferometry
1–2 years
9/10
7/10
$1M
Vibration isolation
Precision astrometry
2–4 years
7/10
9/10
$50M
Systematic error control
Atom interferometry (; )
1–3 years
8/10
8/10
$5M
Controlled information gradients
Pulsar timing arrays
3–5 years
6/10
10/10
$100M
Long-term stability
Experimental validation roadmap, with feasibility scores (1–10), scientific impact, estimated costs, and primary challenges.
TABLE 2
Error source
Neutron interferometry
Astrometry
Mitigation strategy (factor)
Statistical
rad
Increase observations
Vibration
rad
Active isolation
Electromagnetic
rad
Magnetic shielding
Thermal
rad
Temperature control
Gravitational
rad
Correlation analysis
Total
rad
Signal
rad
SNR
0.6
71
Error budget for primary experiments, showing signal-to-noise ratios (SNR) and mitigation strategies. Astrometry offers a higher SNR, indicating strong detection potential.
TABLE 3
Theory
Dimensions
Energy scale
Testability
Parameters
Predictions
Information Theory
4
Macroscopic
High
5
, rad
Loop Quantum Gravity
4
GeV
Low
Discrete spacetime
String Theory (; )
GeV
Very Low
Extra dimensions
Entropic Gravity
4
Macroscopic
Medium
3
Modified dynamics
Gravity
4
Cosmological
Medium
2–5
Curvature corrections
Emergent Gravity
4
Macroscopic
Medium
Holographic effects
Comparison of gravitational theories, highlighting the experimental accessibility of the information-theoretic framework.
2 Theoretical framework
2.1 Information density field construction
Definition 1(Information Density Field). The information density field , with units , quantifies the local Shannon entropy density of classical matter field configurations (Equation 1):where is the probability of microstate (e.g., a specific density bin) within a coarse-graining volume , corresponding to the nuclear interaction length scale ().
The coarse-graining scale
m is chosen to capture the complexity of hadronic interactions, where strong force dynamics dominate matter field configurations. This scale ensures:
Physical Relevance: It reflects the characteristic length where nuclear interactions govern field statistics, avoiding sub-nucleon quantum fluctuations.
Classical Validity: The field remains classical, with probabilities derived from statistical mechanics, suitable for macroscopic gravitational effects.
Computational Tractability: Finite state spaces enable practical calculations of entropy density.
The probabilities are constructed from invariant physical quantities, such as local energy density, particle number density, and field gradients, ensuring observer independence.
Proposition 1(Observer Independence). The information density field is observer-independent when probabilities are derived from coordinate-invariant scalars.Proof The information density field achieves observer independence through its construction from coordinate-invariant scalar quantities. Consider a coordinate transformation . The probabilities are defined via a Gibbs distribution (Equations 2, 3):where is the matter density field, is the equation of state, accounts for gradient contributions, and is the partition function.Crucially, represents the energy density functional of field configuration , built from coordinate-invariant scalars. Under Lorentz transformations, the energy density transforms as the temporal component of the energy-momentum tensor , but the relative probabilities remain invariant because they depend only on energy differences , which are frame-independent for configurations at the same spacetime point. The invariant construction ensures that the Shannon entropy and hence remain observer-independent scalars ().Note that: while the absolute temperature (and thus ) may vary with the observer due to relativistic effects (e.g., time dilation or frame-dependent energy measurements), the energy differences are defined relative to the local rest frame of the matter configuration, ensuring they are boost-invariant scalars. This construction avoids dependence on global observer frames and aligns with relativistic thermodynamics, where effective temperatures are frame-dependent but derived invariants (such as entropy densities) remain consistent across observers.As illustrated in Figure 2 the information density peaks near compact objects due to complex nuclear field configurations. This figure shows the radial profile of information density around a neutron star, computed using nuclear thermodynamic parameters and demonstrating the characteristic enhancement near the stellar surface where nuclear interactions dominate the entropy production. The field satisfies a normalization condition (Equation 4):over a spacelike hypersurface , where is the determinant of the induced 3-metric and is the total information content in bits ().
FIGURE 2
Definition 2(Shannon Entropy Field). The dimensionless Shannon entropy field is given by Equation 5:where .
2.2 Thermodynamically motivated action principle
The covariant action integrates gravitational, information, matter, and gauge field dynamics, motivated by thermodynamic principles linking information to entropy (
: scalar test field (Dirac, 1958), : mass (Penrose, 2004).
: information gauge field strength, : information current, : gauge field (Bousso, 2002).
The coupling constants are derived from nuclear thermodynamics (Equations 12–14), reflecting the entropy-energy equivalence at hadronic scales (Rafelski et al., 2000):
Definition 3(Thermodynamic Coupling Constants).where is Boltzmann’s constant, K, and m.The constant governs information propagation, controls self-interaction, and mediates matter-information coupling, all scaled by nuclear thermodynamic parameters to ensure weak, perturbative effects consistent with observed gravitational phenomena (Jacobson, 1995).Physical Significance: These coupling constants represent the fundamental strength of information-gravity interactions. The thermodynamic derivation ensures that information effects remain perturbative corrections to Einstein gravity, consistent with experimental bounds while producing measurable signatures in precision experiments. The nuclear scale m provides the natural cutoff where information dynamics become relevant to gravitational physics.
2.3 Field equations and conservation laws
Variation of the action yields the coupled field equations, describing the interplay of gravity, information, matter, and gauge fields.
Theorem 1
(Modified Einstein Equations). The gravitational field equations are:where the stress-energy tensors are given by Equations 16–18:
Theorem 2
(Information Field Dynamics). The information field evolves according to:where .
Physical Interpretation: This equation describes how information density evolves under self-interaction ( term) and matter coupling ( term), with the logarithmic potential ensuring thermodynamic consistency with entropy principles. The source term represents information creation through matter field fluctuations.
Theorem 3
(Matter Field Coupling). The scalar matter field satisfies:
Theorem 4
(Gauge Field Dynamics). The information gauge field evolves as:where .
Physical Interpretation: This standard gauge field equation describes how the information gauge field responds to the information current , ensuring local gauge invariance while coupling to information density gradients. The current includes both convective and diffusive contributions, representing information transport and spread respectively.
The information current satisfies a continuity equation reflecting dynamic interactions (Equation 22):Physical Interpretation: This equation describes the creation and destruction of information through matter coupling ( term) and self-interaction ( term). The non-conservation indicates that information can be generated by matter field fluctuations or dissipated through internal interactions, consistent with thermodynamic principles. The Bekenstein bound is enforced dynamically (Equation 23):via boundary conditions in Equation 19 (Bekenstein, 1973).
2.4 Information gauge symmetry
Definition 4(Information Gauge Transformation). The theory is invariant under transformations (Equations 24, 25):where are gauge functions.
Theorem 5
(Gauge Invariant Action). The gauge action (Equation 26) is invariant under the transformations in Equations 24, 25, ensuring gauge symmetry (Bousso, 2002).
2.5 Theoretical framework context
The theoretical framework presented here builds upon the foundations of information-theoretic approaches to gravity while maintaining focus on gravitational interactions as a crucial first step toward broader unification. The computational framework is designed to accommodate future extensions to a more comprehensive gauge structure when theoretical development progresses beyond the current gravitational focus.
The coupling constants (, , ) represent the foundational parameters of what will eventually become a more comprehensive theoretical structure. This strategic approach ensures theoretical consistency while maintaining experimental testability at each development stage, allowing for systematic validation of the information-theoretic approach to fundamental interactions.
3 Phenomenological predictions
The framework predicts observable gravitational effects driven by information density gradients, distinguishable from alternative theories such as modified gravity (Hossenfelder, 2013; Amelino-Camelia, 2013), dark matter substructure (Cronin et al., 1997), and instrumental artifacts (Peters et al., 2001; Mattingly, 2005).
3.1 Modified gravitational lensing
Information density near massive objects modifies light deflection by contributing to spacetime curvature.
Theorem 6
(Information-Modified Lensing). For a point mass with information density profile, the deflection angle is given by Equation 27:where the information correction is defined by Equation 28:for neutron stars with average density kg and average information density bit , derived from nuclear entropy calculations (Rafelski et al., 2000).
Physical Interpretation: The correction represents a fundamental modification to spacetime curvature driven by information content, distinguishable from mass-energy effects through its dependence on entropy density rather than rest mass. This provides a unique observational signature of information-theoretic gravity (Figure 3).
FIGURE 3
Gravitational lensing modified by information density gradients around a neutron star. The diagram illustrates the comparison between standard General Relativity deflection (green path) and information-corrected deflection (red path), showing a measurable correction of order rad. The red dashed contours represent regions of enhanced information density , which contribute additional gravitational effects beyond the classical mass-energy contribution. This information correction arises from the entropy-dependent stress-energy tensor in Equation 16 and provides a unique observational signature that can distinguish information-theoretic gravity from other modified gravity theories. The neutron star’s compact radius (km) and high information density create optimal conditions for detecting this effect.
The correction arises from the information stress-energy tensor (Equation 16), which perturbs the Schwarzschild metric. For a neutron star ( kg, radius km), the information density peaks at bit due to complex nuclear interactions, yielding a detectable lensing deviation (Will, 2014).
3.2 Quantum phase shifts in matter interferometry
The information field induces phase shifts in matter waves propagating through regions of varying information density, detectable in interferometric experiments (Figure 4).
FIGURE 4
Schematic of a matter-wave interferometer for detecting information-induced phase shifts. The system splits a coherent matter wave (neutrons or atoms) into two paths using Crystal 1. Path 2 traverses a region of enhanced information density bit , while Path 1 serves as a reference. The information field induces a phase shift rad through the information-dependent potential term in Equation 20. Crystal 2 recombines the beams, creating an interference pattern that reveals the phase difference. This measurement requires exceptional vibration isolation (m) and long integration times (s) but represents a feasible test of information-theoretic gravity using current interferometric technology.
Theorem 7
(Information-Induced Phase Shifts). A matter wave accumulates a phase shift described by Equation 29:where is the Shannon entropy field, and is an entropy-gradient coupling constant. For a laboratory baseline of m, with bit and eV, the phase shift estimate (Equation 30) gives:
Physical Interpretation: This phase shift arises from the information-dependent potential term in the matter field equation, analogous to the Aharonov-Bohm effect but driven by information gradients rather than electromagnetic fields. The entropy term contributes negligibly in laboratory settings but provides theoretical completeness.
Recent work on entropy-based gravity models in quantum metrology contexts (de Sá Neto et al., 2022) provides complementary insights into information-geometry relationships, particularly for isotropic and anisotropic spacetimes, further supporting the theoretical foundations of information-theoretic approaches to gravity.
4 Experimental validation strategy
The experimental strategy prioritizes high-feasibility, high-impact tests to validate the predicted gravitational effects, with a focus on distinguishing information-theoretic signatures from alternative explanations. The roadmap spans near-term (1–2 years), medium-term (2–4 years), and long-term (3–5 years) efforts, leveraging existing and emerging technologies.
4.1 Priority framework and timeline
4.2 Systematic error analysis and mitigation
To achieve the required precision, systematic errors must be rigorously controlled. The error budget quantifies contributions from statistical and systematic sources, with mitigation strategies tailored to each experiment.
Definition 5(Systematic Error Budget). The total systematic uncertainty is given by Equation 31:where each term represents the variance of a specific error source.
4.3 Alternative theory discrimination
To ensure the predicted effects are uniquely attributable to information-theoretic gravity, we differentiate them from competing models:
1. Versus Modified Gravity: Corrections scale with , not curvature terms like or models (Hossenfelder, 2013).
2. Versus Dark Matter: Effects correlate with baryonic information content, independent of non-baryonic mass distributions (Cronin et al., 1997).
3. Versus Instrumental Artifacts: Signatures show specific spatial and temporal correlations with information density gradients, unlike random or systematic instrumental noise (Peters et al., 2001).
Experimental protocols include control measurements in low-information-density regions to isolate instrumental effects and cross-correlation with baryonic matter distributions to rule out dark matter contributions (Rosi et al., 2014).
5 Computational verification framework
To ensure the theoretical framework’s robustness and reproducibility, we provide a comprehensive computational verification suite implemented in Python. The code verifies dimensional consistency, information field properties, gauge invariance, and experimental predictions, with enhanced documentation addressing reviewer concerns for clarity and usability.
5.1 Computational verification results
Before presenting the verification code, we summarize key numerical results that validate our theoretical framework:
Dimensional Consistency: All action terms verified to have Lagrangian density dimensions
Einstein-Hilbert term: Consistent
Information kinetic term: Consistent
Information potential term: Consistent
Matter kinetic term: Consistent
Coupling term: Consistent
Lensing Correction Predictions:
for neutron stars ( kg)
for white dwarfs ( kg)
Phase Shift Predictions:
rad in laboratory ( m)
rad for space-based interferometry ( m)
Parameter Constraints from Monte Carlo Analysis:
kgms
kg
kg
Gauge Invariance: Verified that and terms maintain invariance under gauge transformations with uncertainty
The Python verification suite serves as supplementary material ensuring reproducibility and provides uncertainty quantification via Monte Carlo methods.
5.2 Computational verification algorithm
The verification framework checks the mathematical consistency of the action terms, confirms information field behavior, validates gauge transformations, and computes experimental predictions with uncertainty propagation via Monte Carlo simulations. The full code is provided below.
Listing 1
"""
Enhanced Verification Framework for Information Theory
Author: M.A. Salih, Qassim University
Version: 2.1 - Corrected and completed for dimensional consistency and experimental predictions
"""
import numpy as np
import scipy.integrate as integrate
import matplotlib.pyplot as plt
from scipy.optimize import minimize
import sympy as sp
from sympy.physics.units import meter, second, kilogram, kelvin, joule, hbar, c, G, k
from sympy.physics.units.systems import SI
class InfoTheoryVerification:
"""
Comprehensive verification suite for information-gravity coupling in Information Theory.
Verifies dimensional consistency, gauge invariance, and experimental predictions.
"""
def __init__(self):
"""Initialize verification with physical constants and couplings."""
self.setup_physical_constants()
self.setup_coupling_parameters()
self.verify_all_components()
def setup_physical_constants(self):
"""Define fundamental constants with SI units and dimensions [M, L, T, Theta, bits]."""
The complete verification suite ensures reproducibility and provides confidence in the theoretical predictions, with all major components passing dimensional and physical consistency checks. The computational framework demonstrates that the information-theoretic approach to gravity is both mathematically consistent and experimentally viable.
Simulation Results: The verification code produces concrete numerical results validating the theoretical framework:
Neutron Star Lensing: (well above astrometric precision limits)
Laboratory Phase Shift: rad (challenging but detectable)
Parameter Consistency: All coupling constants within physically reasonable ranges
Dimensional Verification: Complete validation of Lagrangian density dimensions
These results demonstrate that the information-theoretic modifications to gravity produce measurable effects that can be distinguished from instrumental artifacts and alternative theoretical predictions through their unique scaling with information density rather than conventional mass-energy parameters.
6 Comparison with alternative approaches
The information-theoretic gravity framework is compared with leading gravitational theories to highlight its unique features, experimental accessibility, and theoretical implications.
6.1 Advantages of information-theoretic approach
1. Experimental Accessibility: Predictions at macroscopic scales enable testing with current technologies, unlike Planck-scale theories (Ashtekar and Lewandowski, 2004; Green et al., 1987).
2. Conceptual Clarity: Information as a fundamental dynamical field provides an intuitive link between entropy and gravity (Verlinde, 2011; Padmanabhan, 2010).
3. Mathematical Rigor: The framework is well-defined, with consistent dimensions, gauge invariance, and thermodynamic grounding (Jacobson, 1995).
4. Falsifiability: Specific, measurable predictions allow for decisive experimental validation or refutation (Will, 2014; Cronin et al., 2009; Abbott et al., 2016; Event Horizon Telescope Collaboration, 2019).
5. Complementarity: Compatible with existing quantum gravity approaches, offering a bridge between classical and quantum paradigms (Ryu and Takayanagi, 2006; Swingle, 2012; Witten, 1998; Maldacena, 1999).
6.2 Limitations and current challenges
Incomplete Unification: The current framework addresses only gravitational interactions, deferring full SU(10) unification to future work.
Parameter Precision: Coupling constants require experimental refinement to reduce uncertainties.
Quantum Regime: The classical approximation limits applicability to quantum gravity contexts, necessitating future extensions (Ashtekar and Lewandowski, 2004; Garay, 1995; Kempf et al., 1995).
7 Future directions and research program
The information-theoretic gravity framework sets the stage for a multi-phase research program to validate its predictions, extend its theoretical scope, and explore practical applications.
7.1 Immediate priorities (6–18 Months)
1. Theoretical Development:
Finalize the information gauge theory, including higher-order interactions (Bousso, 2002)
Investigate quantum corrections to the classical information field using effective field theory techniques (Ryu and Takayanagi, 2006)
Explore cosmological applications, such as dark energy from vacuum information density (Weinberg, 1989; Peebles and Ratra, 2003; Riess et al., 1998; Perlmutter et al., 1999)
2. Numerical Simulations:
Solve the non-linear field equations (Equations 15–21) using finite element methods
Perform N-body simulations incorporating information fields to model galactic dynamics
Map parameter space (, , ) to constrain coupling constants using existing observational data (Planck Collaboration and Planck, 2018 results, 2020)
3. Experimental Preparation:
Construct prototype neutron interferometers with controlled information gradients (Tino and Kasevich, 2014)
Characterize systematic errors in laboratory settings (Fixler et al., 2007)
Establish collaborations with experimental groups at facilities like the Institut Laue-Langevin and the European Space Agency (Gaia Collaboration, 2018)
7.2 Medium-term goals (2–5 Years)
1. First Detection Campaign:
Conduct neutron interferometry experiments to measure phase shifts ( rad) (Cronin et al., 2009; Müller et al., 2010; Dimopoulos et al., 2007)
Perform precision astrometry observations of neutron star lensing to detect corrections (Will, 2014; Gaia Collaboration, 2018; Event Horizon Telescope Collaboration, 2019)
Apply Bayesian statistical analysis to validate the model and estimate coupling constants
2. Theoretical Extensions:
Develop a quantum information field theory, incorporating quantum entropy measures (Swingle, 2012)
Investigate black hole information dynamics, potentially resolving the information paradox (Hawking, 1975; Almheiri et al., 2013)
Model cosmological information evolution, linking to early universe perturbations and structure formation (Planck Collaboration and Planck, 2018 results, 2020)
7.3 Long-term vision (5–15 Years)
1. Full SU(10) Unification:
Embed the Standard Model within the SU(10) information framework, addressing fermion representations and gauge boson spectra (Georgi and Glashow, 1974)
Predict particle physics signatures testable at high-energy colliders or precision experiments (Glashow, 1961; Weinberg, 1967)
Explore quantum gravity emergence from information dynamics, potentially unifying GR and quantum mechanics (Ashtekar and Lewandowski, 2004; Rovelli, 2004)
2. Technological Applications:
Develop information-based gravitational sensors for enhanced precision in navigation and geophysics
Leverage information field dynamics for quantum computing advancements, exploiting entropy-driven processes (Ryu and Takayanagi, 2006)
Investigate novel propulsion concepts based on information-gravity interactions, though speculative at this stage
8 Conclusion
This paper presents a rigorously formulated theoretical framework for gravitational interactions mediated by a classical information density field. The approach provides a novel perspective on gravity through information dynamics while maintaining focus on empirically testable predictions. Key achievements include:
1. Robust Theoretical Foundation: The information field is derived from nuclear-scale classical matter configurations, ensuring observer independence through invariant statistical mechanics (Bekenstein, 1973; Shannon, 1948). Thermodynamic principles motivate coupling constants, linking information to gravity via entropy-energy equivalence (Rafelski et al., 2000; Jacobson, 1995).
2. Mathematical Consistency: The framework achieves dimensional consistency, complete gauge invariance (including novel information gauge symmetries), and dynamic enforcement of conservation laws, validated through analytical proofs and numerical simulations (Einstein, 1916; Bousso, 2002).
3. Experimental Testability: Two precise predictions—gravitational lensing corrections and quantum phase shifts ( rad)—are within reach of current technologies, supported by detailed error budgets and discrimination protocols (Will, 2014; Peters et al., 2001; Rosi et al., 2014; Cronin et al., 2009).
4. Comprehensive Verification: Python code verifies theoretical consistency and experimental predictions, with Monte Carlo simulations quantifying uncertainties, ensuring reproducibility.
The framework addresses the physical basis of the information field, motivating coupling parameters, and enhancing experimental feasibility. The current framework focuses specifically on gravitational interactions, providing a foundation for potential future theoretical extensions. The high testability at macroscopic scales distinguishes it from Planck-scale theories, offering a practical avenue to probe information’s role in gravity (Ashtekar and Lewandowski, 2004; Green et al., 1987).
Broader implications extend to fundamental physics, suggesting information as a dynamical substrate underlying spacetime and gravity (Wheeler and Zurek, 1990; Salih, 2025). If validated, this approach could provide new insights into the relationship between information, entropy, and gravitational phenomena, potentially bridging classical relativity with quantum information theory and opening new avenues for theoretical and experimental physics research. Even null results would provide valuable constraints on information’s role in gravitational interactions, advancing our understanding of the fundamental nature of spacetime and gravity.
Statements
Data availability statement
The datasets presented in this study can be found in online repositories. The names of the repository/repositories and accession number(s) can be found in the article/supplementary material.
Author contributions
MS: Conceptualization, Data curation, Formal Analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review and editing.
Funding
The author(s) declare that financial support was received for the research and/or publication of this article. The Researcher would like to thank the Deanship of Graduate Studies and Scientific Research at Qassim University for financial support (QU-APC-2025).
Acknowledgments
Computational resources were provided by Qassim University. The author thanks the reviewers for their constructive feedback that significantly improved the manuscript’s clarity and rigor.
Conflict of interest
The author declares that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Generative AI statement
The author(s) declare that no Generative AI was used in the creation of this manuscript.
Publisher’s note
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
References
1
AbbottB. P.AbbottR.AbbottT.AbernathyM.AcerneseF.AckleyK.et al (2016). Observation of gravitational waves from a binary black hole merger. Phys. Rev. Lett.116, 061102. 10.1103/physrevlett.116.061102
Arkani-HamedN.DimopoulosS.DvaliG. (1998). The hierarchy problem and new dimensions at a millimeter. Phys. Lett. B429, 263–272. 10.1016/s0370-2693(98)00466-3
CroninA. D.SchmiedmayerJ.PritchardD. E. (2009). Optics and interferometry with atoms and molecules. Rev. Mod. Phys.81, 1051–1129. 10.1103/revmodphys.81.1051
de Sá NetoO. P.da PazI. G.CarvalhoP. R. S.CostaH. A. S. (2022). A simple application of quantum metrology to isotropic and anisotropic spacetimes. Int. J. Mod. Phys. D.31 (10), 2250076. 10.1142/S0218271822500766
DimopoulosS.GrahamP. W.HoganJ. M.KasevichM. A. (2007). Testing general relativity with atom interferometry. Phys. Rev. Lett.98, 111102. 10.1103/physrevlett.98.111102
Event Horizon Telescope Collaboration (2019). First M87 event horizon telescope results. I. The shadow of the supermassive black hole, astrophys. J. Lett.875, L1. 10.3847/2041-8213/ab0ec7
FixlerJ. B.FosterG. T.McGuirkJ. M.KasevichM. A. (2007). Atom interferometer measurement of the Newtonian constant of gravity. Science315, 74–77. 10.1126/science.1135459
GubserS. S.KlebanovI. R.PolyakovA. M. (1998). Gauge theory correlators from non-critical string theory. Phys. Lett. B428, 105–114. 10.1016/s0370-2693(98)00377-3
KempfA.ManganoG.MannR. B. (1995). Hilbert space representation of the minimal length uncertainty relation. Phys. Rev. D.52, 1108–1118. 10.1103/physrevd.52.1108
MüllerH.PetersA.ChuS. (2010). A precision measurement of the gravitational redshift by the interference of matter waves. Nature463, 926–929. 10.1038/nature08776
PerlmutterS.AlderingG.GoldhaberG.KnopR. A.NugentP.CastroP. G.et al (1999). Measurements of Ω and Λ from 42 high-redshift supernovae. Astrophys. J.517, 565–586. 10.1086/307221
RafelskiJ.LetessierJ.TounsiA. (2000). Strange hadrons and their resonances: a diagnostic tool of quark-gluon plasma. Acta Phys. Pol. B50, 861–884. 10.1103/PhysRevLett.85.4695
RiessA. G.FilippenkoA. V.ChallisP.ClocchiattiA.DiercksA.GarnavichP. M.et al (1998). Observational evidence from supernovae for an accelerating universe and a cosmological constant. Astron. J.116, 1009–1038. 10.1086/300499
RosiG.SorrentinoF.CacciapuotiL.PrevedelliM.TinoG. M. (2014). Precision measurement of the Newtonian gravitational constant using cold atoms. Nature510, 518–521. 10.1038/nature13433
RyuS.TakayanagiT. (2006). Holographic derivation of entanglement entropy from the anti-de sitter space/conformal field theory correspondence. Phys. Rev. Lett.96, 181602. 10.1103/physrevlett.96.181602
SchlippertD.HartwigJ.AlbersH.RichardsonL.SchubertC.RouraA.et al (2014). Quantum test of the universality of free fall. Phys. Rev. Lett.112, 203002. 10.1103/physrevlett.112.203002
TaralloM. G.MazzoniT.PoliN.SutyrinD.ZhangX.TinoG. (2014). Test of einstein equivalence principle for 0-spin and half-integer-spin atoms: search for spin-gravity coupling effects. Phys. Rev. Lett.113, 023005. 10.1103/physrevlett.113.023005
WheelerJ. A. (1990). “Information, physics, quantum: the search for links, in complexity, entropy,” in The physics of information. Editor ZurekW. H. (Redwood City, CA: CRC Press), 3–28.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.