Hongsheng Zhang

ORCID: 0000-0003-4681-5611
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Research Areas
  • Cosmology and Gravitation Theories
  • Black Holes and Theoretical Physics
  • Pulsars and Gravitational Waves Research
  • Relativity and Gravitational Theory
  • Astrophysical Phenomena and Observations
  • Noncommutative and Quantum Gravity Theories
  • Quantum Electrodynamics and Casimir Effect
  • Galaxies: Formation, Evolution, Phenomena
  • Advanced Differential Geometry Research
  • Advanced Thermodynamics and Statistical Mechanics
  • Geophysics and Sensor Technology
  • Dark Matter and Cosmic Phenomena
  • Particle physics theoretical and experimental studies
  • Astrophysics and Cosmic Phenomena
  • Geophysics and Gravity Measurements
  • Advanced Mathematical Theories and Applications
  • Electromagnetic Scattering and Analysis
  • Advanced optical system design
  • Epoxy Resin Curing Processes
  • Solar and Space Plasma Dynamics
  • Quantum chaos and dynamical systems
  • Ga2O3 and related materials
  • Experimental and Theoretical Physics Studies
  • Mechanical Behavior of Composites
  • GaN-based semiconductor devices and materials

University of Jinan
2016-2023

Institute of Theoretical Physics
2004-2023

Chinese Academy of Sciences
2004-2023

Chongqing University of Posts and Telecommunications
2013-2021

Shanghai Normal University
2009-2017

Ningbo Institute of Industrial Technology
2015

Changchun Institute of Optics, Fine Mechanics and Physics
2014

Yantai University
2013

Korea Astronomy and Space Science Institute
2008-2009

Beijing Normal University
2008-2009

An auxiliary metric (reference metric) is inevitable in massive gravity theory. In the scenario of gauge/gravity duality, with a singular reference used to study momentum dissipation, which describes electric and heat conductivity for normal conductors. We demonstrate detail that de Rham-Gabadadze-Tolley (dRGT) ghost free.

10.1103/physrevd.93.124039 article EN Physical review. D/Physical review. D. 2016-06-15

We obtain the Misner-Sharp mass in massive gravity for a four-dimensional spacetime with two-dimensional maximally symmetric subspace via inverse unified first law method. Significantly, stress energy is conserved this case general reference metric. Based on property, we confirm derived by charge find that existence of does not lead to extra constraint gravity, which notable modified gravities. In addition, as special case, also investigate static spacetime. make concise discussion stability...

10.1103/physrevd.92.024006 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2015-07-02

We study the Misner-Sharp mass for $f(R)$ gravity in an $n$-dimensional (n$\geq$3) spacetime which permits three-type $(n-2)$-dimensional maximally symmetric subspace. obtain via two approaches. One is inverse unified first law method, and other conserved charge method by using a generalized Kodama vector. In approach, we assume still holds gravity, requires quasi-local form (We define it as mass). second corresponding to local vector mass. The approaches are equivalent, bridged constraint....

10.1103/physrevd.90.024062 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2014-07-22

Abstract We define thermodynamic pressure P by work density W as the conjugate quantity of volume V from field equation. derive equations state = ( , T ) for Friedmann–Robertson–Walker (FRW) universe in Einstein gravity and a modified respectively. find that equation shows no - phase transition, while does, where critical exponents are same those mean theory.

10.1140/epjc/s10052-022-10976-9 article EN cc-by The European Physical Journal C 2022-11-18

Dynamical solutions are always of interest to people in gravity theories. We derive a series generalized Vaidya the $n$-dimensional de Rham-Gabadadze-Tolley massive with singular reference metric. Similar case Einstein gravity, solution can describe shining/absorbing stars. Moreover, we also find more general Vaidya-like by introducing generic matter field than pure radiation original spacetime. As result, above is naturally included this as special case. investigate thermodynamics for...

10.1103/physrevd.95.084002 article EN Physical review. D/Physical review. D. 2017-04-03

We obtain the Schwarzschild solution from thermodynamic considerations using assumptions of a quasilocal mass form (the Misner-Sharp mass) and geometric surface gravity in spherically symmetric space-time. The deduction is extended to other cases such as de Sitter, anti--de Reissner-Nordstr\"om, higher-dimensional space-times. This paper demonstrates simple hypotheses these known solutions via thermodynamics, where essentially for an adiabatic system.

10.1103/physrevd.89.064052 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2014-03-20

The perihelion precession and deflection of light have been investigated in the 4-dimensional general spherically symmetric spacetime, master equation is obtained. As application this equation, Reissner-Nordstorm-AdS solution Clifton-Barrow in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>f</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>R</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>gravity taken as examples. We find that both electric charge...

10.1155/2014/604321 article EN cc-by Advances in High Energy Physics 2014-01-01

Investigation of quasibound states black holes is significant for expected ultralight particles, as well through gravitational waves. We first investigate a massive scalar field dilatonic charged via numerical analysis. study the complex eigenfrequencies in wide range fine structure constant $\ensuremath{\mu}M$ detail, and show effects charge. Further, we an analytical approach by matching near horizon solution far solution, find its spectra excited iteration method. demonstrate that...

10.1103/physrevd.103.044062 article EN Physical review. D/Physical review. D. 2021-02-26

In a recent work, we present new point of view to the relation gravity and thermodynamics, in which derive \sch~solution through thermodynamic laws by aid Misner-Sharp mass an adiabatic system. this paper continue investigate between thermodynamics for obtaining solutions via thermodynamics. We generalize our studies on gravi-thermodynamics Einstein modified theories. By using first law with assumption that is system, reproduce Boulware-Deser-Cai solution Guass-Bonnet gravity. Using thought,...

10.1016/j.physletb.2014.09.010 article EN cc-by Physics Letters B 2014-09-10

The thin dielectric sheet-based surface integral equation (SIE) method is introduced to the accurate simulation of fracture scattering, which an important and challenging topic in hydrocarbon exploration. In proposed method, equivalent volume current decomposed into constant normal current. With this decomposition, D-field degenerates SIE, makes our stable, accurate, efficient at low frequency. Numerical results have demonstrated its excellent performance.

10.1109/lgrs.2016.2591079 article EN publisher-specific-oa IEEE Geoscience and Remote Sensing Letters 2016-08-03

In the three-dimensional pure Einstein gravity, geometries of vacuum space-times are always trivial, and gravitational waves (gravitons) strictly forbidden. For first time, we find a circularly symmetric black hole with nontrivial in $f(R)$ gravity theory, which true singularity appears. this frame geometry, perturbative wave does exist. Beyond level, make constructive proof existence where Birkhoff-like theorem becomes invalid. We two classes exact solutions radiation absorption.

10.1103/physrevd.90.124051 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2014-12-17

A bstract We make a first principle study of gravitational pressure in cosmic thermo- dynamics. The is directly derived from the unified law, fact Einstein field equation spherically symmetric spacetime. By using this pressure, we obtain thermodynamics for FRW universe, especially presenting state spacetime itself, i.e. P = ( R , T ) time. Furthermore, Joule-Thomson expansion as an application thermodynamic to find cooling-heating property universe. demonstrate that there inversion...

10.1007/jhep12(2022)168 article EN cc-by Journal of High Energy Physics 2022-12-29

10.1016/j.physletb.2012.07.014 article EN Physics Letters B 2012-07-10

In this work, we report the replication and characterization of compound eye a fruit fly for imaging purpose. replication, soft lithography method was employed to replicate into UV-curable polymer. The demonstrated be effective is replicated polymer (NOA78) where each ommatidium has diameter about 30 μm sag height 7 μm. To characterize its optical property, point spread function tested NA 0.386 been obtained polymeric ommatidium. Comparing with real which measured 0.212, much larger due...

10.1063/1.4898060 article EN Applied Physics Letters 2014-10-06

Gravitational lensing is one of the most impressive celestial phenomena, which has interesting behaviors in its strong field limit. Near such limit, Bozza finds that deflection angle light well-approximated by a logarithmic term and constant term. In this way he explicitly derived analytic expressions angles for few types black holes. paper, we study explicit calculation to two new metrics limit: (i) Schwarzschild metric extended with an additional $r^{-n}(n\geq 3)$ function; (ii)...

10.1016/j.physletb.2021.136683 article EN cc-by Physics Letters B 2021-09-27

10.1016/j.physletb.2008.04.022 article EN Physics Letters B 2008-04-17

Wave propagations in the presence of black holes is a significant problem both theoretical and observational aspects, especially after discovery gravitational wave confirmation holes. We study scattering massless scalar field by charged dilatonic hole frame full theory. apply partial method to obtain cross sections field, investigate how charge affects sections. Furthermore, we Regge pole approach section hole. find that order results at same precision, need more poles as increases. compare...

10.1140/epjc/s10052-020-8228-8 article EN cc-by The European Physical Journal C 2020-07-01

We propose a Cosmological Model Independent Time Delay (CMITD) method where the Lorentz invariance violation (LIV) variable K(z) is constructed by observational data instead of cosmological model. The simulated time delay show CMITD could present validity LIV test. And, errors in propagating process critical for existence and magnitude LIV.

10.1088/1475-7516/2018/08/027 article EN Journal of Cosmology and Astroparticle Physics 2018-08-20

A new brane world in the sourced-Taub background is proposed. The gravity field equations internal source region and external vacuum are investigated, respectively. We find that equation of state for effective dark energy a dust can cross phantom divide w=−1. Furthermore, there drop on H(z) diagram, which presents possible mechanism recent direct data H(z).

10.1016/j.physletb.2009.07.021 article EN cc-by Physics Letters B 2009-07-17

The conformal gravity remarkably boosts our prehension of theories. We find a series dynamical solutions in the $W^2$-conformal gravity, including generalized Schwarzschild-Friedmann-Robertson-Walker (GSFRW), charged (CGSFRW), especially rotating Friedmann-Robertson-Walker (RFRW), (CRFRW), and cylindrically symmetric solutions. RFRW, CRFRW are never found Einstein modified gravities. GSFRW CGSFRW take different forms from corresponding gravity.

10.1016/j.nuclphysb.2017.05.011 article EN cc-by Nuclear Physics B 2017-05-24

Separately, neither electromagnetic (EM) observations nor gravitational wave (GW) can distinguish between the $f(T)$ model and $\Lambda$CDM effectively. To break this degeneration, we simulate GW measurement based on coming observation facilities, explicitly Einstein Telescope. We make cross-validations simulated data factual EM data, including Pantheon, H(z), BAO CMBR results show that they are consistent with each other. Anyway, itself have $H_0$ tension problem which plays critical role...

10.1140/epjc/s10052-021-09501-1 article EN cc-by The European Physical Journal C 2021-08-01

10.1007/s11433-021-1764-y article EN Science China Physics Mechanics and Astronomy 2021-10-20

Liquid composite moulding (LCM) has been successfully used to manufacture natural fiber reinforced composites. Effects of liquid absorption and swelling on the permeability fabrics in LCM were investigated. It shows that saturated measured corn syrup is 23.1%–69.5% smaller than motor oil because reduced porosity flow paths caused by swelling. Based traditional models considering effects jute fibers, a mathematic model was developed predict variable during mold filling. Experimental results...

10.1002/pc.23663 article EN Polymer Composites 2015-07-14
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