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Notes on Entropy Force in General Spherically Symmetric Spacetimes · Around

2010

Notes on Entropy Force in General Spherically Symmetric Spacetimes

Cai, Rong-Gen, Cao, Li-Ming, Ohta, Nobuyoshi

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In a recent paper [arXiv:1001.0785], Verlinde has shown that the Newton gravity appears as an entropy force.

In this paper we show how gravity appears as entropy force in Einstein's equation of gravitational field in a general spherically symmetric spacetime.
We mainly focus on the trapping horizon of the spacetime.
We find that when matter fields are absent, the change of entropy associated with the trapping horizon indeed can be identified with an entropy force.

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Then

S. A. Hayward, Phys. Rev. Lett. 93
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R. G. Cai and S. P. Kim, JHEP 0502
2005
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R. G. Cai, Prog.Theor.Phys.Suppl.172:100-109,2008 [arXiv:0712.2142[hep-th]]; R. G. Cai and L. M. Cao, Nucl. Phys. B 785
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2007
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T. Padmanabhan, Class. Quant. Grav. 19
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2007
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R. G. Cai, L. M. Cao and Y. P. Hu, JHEP0808:090,2008 [arXiv:0807.1232[hep-th]]; M. Akbar and R. G. Cai, Phys. Rev. D 75
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A. B. Nielsen and J. H. Yoon, Class. Quant. Grav. 25

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T. Padmanabhan, arXiv:0911.5004 [gr-qc]

Cited in the paper.

E. P. Verlinde, “On the Origin of Gravity and the Laws of Newton,” arXiv:1001.0785 [hep-th]

Cited in the paper.

T. Padmanabhan, arXiv:0912.3165 [gr-qc]

Cited in the paper.

F. W. Shu and Y. Gong, [arXiv:1001.3237[gr-qc]]

Cited in the paper.

T. Padmanabhan, [arXiv:1001.3380[gr-qc]]

Cited in the paper.

2008

Later among the works it cites.

R. G. Cai, L. M. Cao and Y. P. Hu, Class. Quant. Grav. 26

2009

Later among the works it cites.