Test of the Equivalence Principle Using a Rotating Torsion Balance

Abstract

We used a continuously rotating torsion balance instrument to measure the acceleration difference of beryllium and titanium test bodies towards sources at a variety of distances. Our result Delta a=(0.6+/-3.1)x10^-15 m/s^2 improves limits on equivalence-principle violations with ranges from 1 m to infinity by an order of magnitude. The Eoetvoes parameter is eta=(0.3+/-1.8)x10^-13. By analyzing our data for accelerations towards the center of the Milky Way we find equal attractions of Be and Ti towards galactic dark matter, yielding eta=(-4 +/- 7)x10^-5. Space-fixed differential accelerations in any direction are limited to less than 8.8x10^-15 m/s^2 with 95% confidence.

arXiv comment4 pages, 4 figures; accepted for publication in PRL

References in corpus (3)

• Progress in Lunar Laser Ranging Tests of Relativistic Gravity
• Short-range tests of the equivalence principle
• Testing the equivalence principle: why and how?

Cited by in corpus (360)

• Modified Gravity and Cosmology
• The Confrontation between General Relativity and Experiment
• Search for New Physics with Atoms and Molecules
• Testing General Relativity with Present and Future Astrophysical Observations
• Beyond the Cosmological Standard Model
• New experimental approaches in the search for axion-like particles
• Varying constants, Gravitation and Cosmology
• The Confrontation between General Relativity and Experiment
• The Effective Field Theory of Dark Energy
• Torsion-balance tests of the weak equivalence principle
• Searching for dilaton dark matter with atomic clocks
• Detecting inertial effects with airborne matter-wave interferometry
• AEDGE: Atomic Experiment for Dark Matter and Gravity Exploration in Space
• Matter-gravity couplings and Lorentz violation
• Quantum Test of the Universality of Free Fall
• Atom-interferometric test of the equivalence principle at the $10^{-12}$ level
• Testing General Relativity with Low-Frequency, Space-Based Gravitational-Wave Detectors
• Cosmological Tests of Gravity
• Equivalence Principle Violations and Couplings of a Light Dilaton
• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• Test of Equivalence Principle at $10^{-8}$ Level by a Dual-species Double-diffraction Raman Atom Interferometer
• Dark Matter Direct Detection with Accelerometers
• Search for ultralight scalar dark matter with atomic spectroscopy
• Naturalness and the Weak Gravity Conjecture
• The Dilaton and Modified Gravity
• Modified theories of Gravity: Why, How and What?
• Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons
• Signs of Dark Matter at 21-cm?
• Prospects for Large Relativity Violations in Matter-Gravity Couplings
• MICROSCOPE mission: final results of the test of the Equivalence Principle
• MICROSCOPE mission: first constraints on the violation of the weak equivalence principle by a light scalar dilaton
• Dual Matter-Wave Inertial Sensors in Weightlessness
• Gravitational Decoherence
• General Relativistic Effects in Atom Interferometry
• Quantum Tests of the Einstein Equivalence Principle with the STE-QUEST Space Mission
• General Relativity and Cosmology: Unsolved Questions and Future Directions
• Particle Physics Models for the 17 MeV Anomaly in Beryllium Nuclear Decays
• Violation of the equivalence principle from light scalar dark matter
• STE-QUEST - Test of the Universality of Free Fall Using Cold Atom Interferometry
• Search for light scalar dark matter with atomic gravitational wave detectors
• Experimental Tests of General Relativity
• Lunar Laser Ranging Tests of the Equivalence Principle
• Theoretical Aspects of the Equivalence Principle
• First observation with global network of optical atomic clocks aimed for a dark matter detection
• Probing deformed commutators with macroscopic harmonic oscillators
• Neutron-Antineutron Oscillations: Theoretical Status and Experimental Prospects
• Relaxion Stars and their detection via Atomic Physics
• High sensitivity optomechanical reference accelerometer over 10 kHz
• Sound of Dark Matter: Searching for Light Scalars with Resonant-Mass Detectors
• Limits on a CP-violating scalar axion-nucleon interaction
• Testing gravity with cold atom interferometry: Results and prospects
• Test of the universality of free fall with atoms in different spin Orientations
• Test of the universality of free fall with atoms in different spin orientations
• Searching for Dark Photon Dark Matter with Gravitational Wave Detectors
• Phenomenology of relaxion-Higgs mixing
• Effective inertial frame in an atom interferometric test of the equivalence principle
• Mechanical Quantum Sensing in the Search for Dark Matter
• Testing the universality of free fall with rubidium and ytterbium in a very large baseline atom interferometer
• Circumventing Heisenberg's uncertainty principle in atom interferometry tests of the equivalence principle
• New Experimental limit on Optical Photon Coupling to Neutral, Scalar Bosons
• Experimental Tests of General Relativity: Recent Progress and Future Directions
• SAGE: A Proposal for a Space Atomic Gravity Explorer
• Searches for the role of spin and polarization in gravity
• Gravitational wave probes of dark matter: challenges and opportunities
• Does an atom interferometer test the gravitational redshift at the Compton frequency ?
• Precision Gravity Tests and the Einstein Equivalence Principle
• Direct limits for scalar field dark matter from a gravitational-wave detector
• The Science of the Einstein Telescope
• Phenomenology of the Equivalence Principle with Light Scalars
• Sub-eV scalar dark matter through the super-renormalizable Higgs portal
• Equivalence Principle and Bound Kinetic Energy
• Quantum Test of the Equivalence Principle and Space-Time aboard the International Space Station
• The Abell Cluster A586 and the Detection of the Equivalence Principle
• Constraints on dark photon dark matter using data from LIGO's and Virgo's third observing run
• Lessons from the decoupling limit of Horava gravity
• Atomic Precision Tests and Light Scalar Couplings
• Sensitivity of atom interferometry to ultralight scalar field dark matter
• Gravitational redshift in quantum-clock interferometry
• Oscillating Spin-2 Dark Matter
• Exploring the robustness of stellar cooling constraints on light particles
• Advance and prospects in constraining the Yukawa-type corrections to Newtonian gravity from the Casimir effect
• Space test of the Equivalence Principle: first results of the MICROSCOPE mission
• Aspects of Phase-Space Noncommutative Quantum Mechanics
• The light U boson as the mediator of a new force, coupled to a combination of Q, B, L and dark matter
• Searching for ultra-light dark matter with optical cavities
• Limits on the Axial Coupling Constant of New Light Bosons
• Search for light scalar Dark Matter candidate with AURIGA detector
• Snowmass White Paper: Beyond the Standard Model effects on Neutrino Flavor
• Atom gravimeters and gravitational redshift
• Gravitational Waves from First-Order Phase Transition in a Simple Axion-Like Particle Model
• MICROSCOPE limits for new long-range forces and implications for unified theories
• Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks
• Searching for dark matter with an unequal delay interferometer
• Searching for Scalar Dark Matter via Coupling to Fundamental Constants with Photonic, Atomic and Mechanical Oscillators
• Searching for Dark Photon Dark Matter in LIGO O1 Data
• Coherent relaxion dark matter
• Searching for vector dark matter with an optomechanical accelerometer
• STEP and fundamental physics
• Lepton Flavorful Fifth Force and Depth-dependent Neutrino Matter Interactions
• Measuring the stability of fundamental constants with a network of clocks
• Test of the gravitational redshift with stable clocks in eccentric orbits: application to Galileo satellites 5 and 6
• Universe's Worth of Electrons to Probe Long-Range Interactions of High-Energy Astrophysical Neutrinos
• New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
• Wolfenstein potentials for neutrinos induced by ultra-light mediators
• Inertial and gravitational mass in quantum mechanics
• Gauged L_mu - L_tau and different Muon Neutrino and Anti-Neutrino Oscillations: MINOS and beyond
• Representation-free description of light-pulse atom interferometry including non-inertial effects
• Probing the Relaxed Relaxion at the Luminosity and Precision Frontiers
• New bounds for Tsallis parameter in a noncommutative phase-space entropic gravity and nonextensive Friedmann equations
• Unveiling dark fifth forces with linear cosmology
• Search for oscillations of fundamental constants using molecular spectroscopy
• Correlative methods for dual-species quantum tests of the weak equivalence principle
• Dark-Matter-Induced Weak Equivalence Principle Violation
• A Proposal for Testing Gravity's Rainbow
• Direct millicharged dark matter cannot explain EDGES
• Search for the effect of massive bodies on atomic spectra and constraints on Yukawa-type interactions of scalar particles
• Picoradian deflection measurement with an interferometric quasi-autocollimator using weak value amplification
• General Dynamics of Varying-Alpha Universes
• Status and perspectives of Continuous Gravitational Wave searches
• Neutrino Oscillation Constraints on U(1)' Models: from Non-Standard Interactions to Long-Range Forces
• Laser Interferometers as Dark Matter Detectors
• The good, the bad and the ugly .... of Horava gravity
• The Phenomenology of Quadratically Coupled Ultra Light Dark Matter
• Constraints on Relaxion Windows
• Testing General Relativity with Atomic Clocks
• Entropic Gravity, Phase-Space Noncommutativity and the Equivalence Principle
• Ultralight vector dark matter search with auxiliary length channels of gravitational wave detectors
• On the detectability of ultralight scalar field dark matter with gravitational-wave detectors
• Application of the proximity force approximation to gravitational and Yukawa-type forces
• Discovering leptonic forces using non-conserved currents
• Relaxion and light (pseudo)scalars at the HL-LHC and lepton colliders
• The Science Case for STEP
• Probing muonic forces with neutron star binaries
• MICROSCOPE limits on the strength of a new force, with comparisons to gravity and electromagnetism
• The Weak Scale as a Trigger
• Reconstructing the gravitational field of the local universe
• Electroweak Baryogenesis from Temperature-Varying Couplings
• Search for ultralight dark matter with spectroscopy of radio-frequency atomic transitions
• Improved sensitivity of interferometric gravitational wave detectors to ultralight vector dark matter from the finite light-traveling time
• Nonlocal Teleparallel Cosmology
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Ultralight Fermionic Dark Matter
• An effective description of dark matter and dark energy in the mildly non-linear regime
• Tracking length and differential wavefront sensing signals from quadrant photodiodes in heterodyne interferometers with digital phase-locked loop readout
• Constraints on emergent gravity
• Constraints on scalar field dark matter from co-located Michelson interferometers
• Design and characteristics of a WEP test in a sounding-rocket payload
• COW test of the weak equivalence principle: A low-energy window to look into the noncommutative structure of space-time?
• Quantum test of the Universality of Free Fall using rubidium and potassium
• Result of the MICROSCOPE Weak Equivalence Principle test
• Exploring the Foundations of the Universe with Space Tests of the Equivalence Principle
• First search for ultralight dark matter with a space-based gravitational-wave antenna: LISA Pathfinder
• Quantum states of p-band bosons in optical lattices
• Varying-Alpha Cosmologies with Potentials
• Probing new light gauge bosons with gravitational-wave interferometers using an adapted semi-coherent method
• How to estimate the differential acceleration in a two-species atom interferometer to test the equivalence principle
• Distinguishing axions from generic light scalars using EDM and fifth-force experiments
• New bounds on macroscopic scalar-field topological defects from non-transient signatures due to environmental dependence and spatial variations of the fundamental constants
• Sliding Naturalness: Cosmological Selection of the Weak Scale
• Implications of a Scalar Dark Force for Terrestrial Experiments
• Modelling the flyby anomalies using a modification of inertia
• A Time-Varying Fine Structure Constant from Naturally Ultralight Dark Matter
• Varying Alpha: New Constraints from Seasonal Variations
• Geometric inequivalence of metric and Palatini formulations of General Relativity
• Removal of zero-point drift from AB data and the statistical cost
• Cosmic Axion Force
• The State of the Art in Constraining Axion-to-Nucleon Coupling and Non-Newtonian Gravity from Laboratory Experiments
• Eotvos bounds on couplings of fundamental parameters to gravity
• Varying Alpha
• Ultra-High Energy Probes of Classicalization
• Constraints on Ultralight Scalar Dark Matter with Quadratic Couplings
• Testing the Universality of Free Fall using correlated ${}^{39}$K -- ${}^{87}$Rb interferometers
• Detection of the Abraham force with a succession of short optical pulses
• Fundamental limitations to high-precision tests of the universality of free fall by dropping atoms
• Novel constraints on fifth forces and ultralight dark sector with asteroidal data
• New test of Lorentz invariance using the MICROSCOPE space mission
• Sensitivity of Space-based Gravitational-Wave Interferometers to Ultralight Bosonic Fields and Dark Matter
• Gravitational Wave Echo of Relaxion Trapping
• Quantum Equivalence Principle Violations in Scalar-Tensor Theories
• The Classical Limit of Minimal Length Uncertainty Relation:Revisit with the Hamilton-Jacobi Method
• CP-violating axion interactions in effective field theory
• Time variation of fundamental couplings and dynamical dark energy
• The three-fold theoretical basis of the Gravity Probe B gyro precession calculation
• Evaporation Barrier for Dark Matter in Celestial Bodies
• Cosmological Constraints on the Gravitational Interactions of Matter and Dark Matter
• Interacting quantum mixtures for precision atom interferometry
• Testing antimatter gravity with muonium
• Searching for ultralight scalar dark matter with muonium and muonic atoms
• The IR-Completion of Gravity: What happens at Hubble Scales?
• Broadband Electrical Action Sensing Techniques with conducting wires for low-mass dark matter axion detection
• Searching for a Fifth Force with Atomic and Nuclear Clocks
• Gravitational wave probes of particle dark matter: a review
• Cosmologically Varying Kinetic Mixing
• Connection between a possible fifth force and the direct detection of Dark Matter
• Searching for Scalar Field Dark Matter using Cavity Resonators and Capacitors
• On the Possibility of Measuring the Abraham Force using Whispering Gallery Modes
• A quasi-complete mechanical model for a double torsion pendulum
• From axion quality and naturalness problems to a high-quality ${\mathbb{Z}}_N$ QCD relaxion
• Testing the Equivalence Principle in space after the MICROSCOPE mission
• Equivalence Principle in Chameleon Models
• Relaxion Dark Matter from Stochastic Misalignment
• The Equivalence Principle and the Constants of Nature
• Quantum resource covariance
• Neutrino forces in neutrino backgrounds
• Fundamental Physics Explored with High Intensity Laser
• The ${\nu }_R$-philic scalar: its loop-induced interactions and Yukawa forces in LIGO observations
• Atomic Quantum Technologies for Quantum Matter and Fundamental Physics Applications
• On the use of the proximity force approximation for deriving limits to short-range gravitational-like interactions from sphere-plane Casimir force experiments
• Experimental targets for dark photon dark matter
• Scalar particle production in a simple Horndeski theory
• Searching for dark matter with the Th-229 nuclear lineshape from laser spectroscopy
• Constraints on fifth forces and ultralight dark matter from OSIRIS-REx target asteroid Bennu
• Competing bounds on the present-day time variation of fundamental constants
• Detecting dark photon dark matter with Gaia-like astrometry observations
• MICROSCOPE Mission scenario, ground segment and data processing
• Detecting Fundamental Vector Fields with LISA
• Theoretical bounds on dark matter masses
• An Attractive Scenario for Light Dark Matter Direct Detection
• Validation of the in-flight calibration procedures for the MICROSCOPE space mission
• New Constraints on Dark Matter and Cosmic Neutrino Profiles through Gravity
• Runaway Domain Wall and Space-time Varying alpha
• Experimental constraints on the free fall acceleration of antimatter
• Precision tests of General Relativity with Matter Waves
• Reply to the comment on: "Does an atom interferometer test the gravitational redshift at the Compton frequency?"
• Foundations of Classical Electrodynamics, Equivalence Principle and Cosmic Interactions: A Short Exposition and an Update
• Resonance refraction and neutrino oscillations
• New generation low-energy probes for ultralight axion and scalar dark matter
• Searches for New Particles Including Dark Matter with Atomic, Molecular and Optical Systems
• Electroweak baryogenesis by axionlike dark matter
• Probing Stochastic Ultralight Dark Matter with Space-based Gravitational-Wave Interferometers
• Probing CP Violation in Photon Self-Interactions with Cavities
• The New SI and the Fundamental Constants of Nature
• Strengthening constraints on Yukawa-type corrections to Newtonian gravity from measuring the Casimir force between a cylinder and a plate
• Spatial variation of fundamental couplings and Lunar Laser Ranging
• A weak equivalence principle test on a suborbital rocket
• Constraints on the Variation of Physical Constants, Equivalence Principle Violation, and a Fifth Force from Atomic Experiments
• Active laser cooling of a centimeter-scale torsional oscillator
• Light Dark Matter Annihilation and Scattering in LHC Detectors
• Varying-Alpha and K-Essence
• A quick test of the WEP enabled by a sounding rocket
• Interpretation of geodesy experiments in non-Newtonian theories of gravity
• Test of Einstein Equivalence Principle by frequency comparisons of optical clocks
• Constraining Light Dark Photons from GW190517 and GW190426_152155
• Prospects of nuclear-coupled-dark-matter detection via correlation spectroscopy of I${}_2^{+}$ and Ca${}^{+}$
• Generalized perturbations in neutrino mixing
• A constraint on antigravity of antimatter from precision spectroscopy of simple atoms
• Test of the Equivalence Principle in the Dark Sector on Galactic Scales
• Blowing in the Dark Matter Wind
• Preliminary Sensitivity Study for a Gravitational Redshift Measurement with China's Lunar Exploration Project
• Expanded solar-system limits on violations of the equivalence principle
• Constraining massless dilaton theory at Solar system scales with the planetary ephemeris INPOP
• Probing Bosonic Stars with Atomic Clocks
• Asteroids for ultralight dark-photon dark-matter detection
• Mixing of photons with massive spin-two particles in a magnetic field
• A representation learning approach to probe for dynamical dark energy in matter power spectra
• Constraints on Gravitation from Causality and Quantum Consistency
• A solar origin of the XENON1T excess without stellar cooling problems
• Fundamental constants and their variability in theories of High Energy Physics
• Dark photon bursts from compact binary systems and constraints
• 'Universal' FitzGerald Contractions
• Violation of the Weak Equivalence Principle in Bekenstein's theory
• The Stochastic Relaxion
• Atom Interferometry in Space: Thermal Management and Magnetic Shielding
• Search for ultralight dark matter with a frequency adjustable diamagnetic levitated sensor
• Dark energy with the help of interacting dark sectors
• Constraining scalar dark matter with Big Bang nucleosynthesis and atomic spectroscopy
• Measuring axion gradients with photon interferometry (MAGPI)
• Detecting the massive vector field with extreme mass-ratio inspirals
• Dark matter repulsion could thwart direct detection
• Tests of Relativistic Gravity in Space: Recent Progress and Future Directions
• Constraining the fundamental interactions and couplings with Eötvös experiments
• A proposed search for new light bosons using a table-top neutron Ramsey apparatus
• Non-linear Bragg trap interferometer
• Probing Supersymmetry Breaking Scale with Atomic Clocks
• Light, the universe, and everything -- 12 Herculean tasks for quantum cowboys and black diamond skiers
• On neutrino-mediated potentials in a neutrino background
• Using atomic clocks to detect local dark matter halos
• Detecting Ultralight Dark Matter with Matter Effect
• Gravitational vacuum polarization phenomena due to the Higgs field
• Inflation and long-range force from clockwork $D$-term
• The kilogram: inertial or gravitational mass?
• Impact of the matter density uncertainty on the dark energy reconstruction
• Ultralight dark matter searches with KAGRA gravitational wave telescope
• Contrastive analysis of two energy gradients in the ultra-strong magnetic fields
• Antimatter, the SME, and Gravity
• Constraints on the maximal number of dark degrees of freedom from black hole evaporation, cosmic rays, colliders, and supernovae
• Gravitational Redshift, Equivalence Principle, and Matter Waves
• Probing a scale dependent gravitational slip with galaxy strong lensing systems
• Manifestations of dark matter and variations of fundamental constants in atoms and astrophysical phenomena
• A plethora of long-range neutrino interactions probed by DUNE and T2HK
• Dark Matter Raining on DUNE and Other Large Volume Detectors
• Testing Gravity and Predictions Beyond the Standard Model at Short Distances: The Casimir Effect
• Minimal Electroweak Baryogenesis via Domain Walls
• Matter waves and clocks do not observe uniform gravitational fields
• Dark Kinetic Heating of Exoplanets and Brown Dwarfs
• Solar neutrinos and leptonic spin forces
• AEGIS at CERN: Measuring Antihydrogen Fall
• Unveiling Time-Varying Signals of Ultralight Bosonic Dark Matter at Collider and Beam Dump Experiments
• Does the Neptunian system of satellites challenge a gravitational origin for the Pioneer anomaly?
• Proposal for a geophysical search for dilatonic waves
• Hidden Sectors in String Theory: Kinetic Mixings, Fifth Forces and Quintessence
• Modifying Gravity in the Infra-Red by imposing an "Ultra-Strong" Equivalence Principle
• Improving force sensitivity by amplitude measurement of light reflected from a detuned optomechanical cavity
• Parity-violating macroscopic force between chiral molecules and source mass
• Indirect Signals of Dark Matter Can Change Depending on Where You Look
• An Emergent Solution to the Strong CP Problem
• Thick shell regime in the chameleon two-body problem
• Magnetic contributions in Bekenstein type models
• Analysis and simulation of the operation of a Kelvin probe
• Ground Tests of Einstein's Equivalence Principle: From Lab-based to 10-m Atomic Fountains
• Constraints on Long-Ranged Interactions Between Dark Matter and the Standard Model
• Quantum Sensing Using Atomic Clocks for Nuclear and Particle Physics
• Differential torsion sensor for direct detection of ultralight vector dark matter
• How to strengthen constraints on non-Newtonian gravity from measuring the lateral Casimir force
• A terrestrial search for dark contents of the vacuum, such as dark energy, using atom interferometry
• Demonstration that Differential Length Changes of Optical Cavities are a Sensitive Probe for Ultralight Dark Matter
• Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map
• Gravitational mass and energy gradient in the ultra-strong magnetic fields
• Proposal for a Quantum Mechanical Test of Gravity at Millimeter Scale
• Ytterbium atom interferometry for dark matter searches
• Universality of free fall versus ephemeris
• Improved bounds on ultralight scalar dark matter in the radio-frequency range
• Robust laboratory limits on a cosmological spatial gradient in the electromagnetic fine-structure constant from accelerometer experiments
• Do general relativistic effects limit experiments to test the universality of free fall and the weak equivalence principle?
• Baryon number violation in supersymmetry: Neutron-antineutron oscillations as a probe beyond the LHC
• Testing the Gravitational Redshift with Atomic Gravimeters?
• Neutrino backgrounds in matter-wave interferometry: implications for dark matter searches and beyond-Standard Model physics
• Proposal to repeat the Abraham force experiment using giant permittivity materials
• Detecting meV-Scale Dark Matter via Coherent Scattering with an Asymmetric Torsion Balance
• Constraining Fundamental Constant Variations from Ultralight Dark Matter with Pulsar Timing Arrays
• Equivalence principle violation from large scale structure
• Understanding Galaxy Rotation Curves with Verlinde's Emergent Gravity
• Compensation of B-L charge of matter with relic sneutrinos
• Implications of Quantum Gravity for Dark Matter
• Constraining Yukawa-type interaction and coupling constant of axionlike particles to nucleons from recent measurement of the Casimir-Polder interaction
• Models of ultra-heavy dark matter visible to macroscopic mechanical sensing arrays
• Short-range test of the universality of gravitational constant $G$ at the millimeter scale using a digital image sensor
• Constraining Light Scalar Field with Torsion-Balance Gravity Experiments
• Ultralight Dark Matter from the Edge of Field Space
• Zen and the Art of Space-Time Manufacturing
• Proposal for a Bell Test with Entangled Atoms of Different Mass
• On the first test of the Weak Equivalence Principle in low Earth orbit
• Experimental hint for gravitational CP violation
• Nonminimal Lorentz Violation in Macroscopic Matter
• Tensor gauge fields and dark matter in general relativity with fermions
• Bose-Einstein condensates in microgravity and fundamental tests of gravity
• Infrared Sensitivity of Cosmological Probes in Horndeski Theory
• Fundamental Symmetries of the Early Universe and the Precision Frontier
• Fringe-locking method for the weak equivalence principle test by simultaneous dual-species atom interferometers
• Violation of the equivalence principle from light scalar fields: from Dark Matter candidates to scalarized black holes
• Torsion Balance Experiments Enable Direct Detection of Sub-eV Dark Matter
• Distinguishing between dark-matter interactions with gravitational-wave detectors
• Hilbert's forgotten equation, the equivalence principle and velocity dependence of free fall
• Homogeneous Field and WKB Approximation In Deformed Quantum Mechanics with Minimal Length
• A New Torsion Balance for the Search of Long-range Interactions Coupling to Baryon and Lepton Numbers
• Testing the weak equivalence principle for nonclassical matter with torsion balances
• The Equivalence and/or the Effacing principle in $f\left(R\right)$ theories of gravity
• Geophysical constraint on a relic background of the dilatons
• Probing New Forces with Nuclear Clocks
• Comparison of metrics from retarded integrals and transverse traceless subgauge