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Li, X; Chang, Z; Li, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Debye Entropic Force and Modified Newtonian Dynamics
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
Language英语
KeywordBlack-hole Dark Matter Energy Galaxies Laws
AbstractVerlinde has suggested that the gravity has enentropic origin, and a gravitational system could be regarded as a thermodynamical system. It is well-known that the equipartition law of energy is invalid at very low temperature. Therefore, entropic force should be modified while the temperature of the holographic screen is very low. It is shown that the modified entropic force is proportional to the square of the acceleration, while the temperature of the holographic screen is much lower than the Debye temperature T(D). The modified entropic force returns to the Newton's law of gravitation while the temperature of the holographic screen is much higher than the Debye temperature. The modified entropic force is connected with modified Newtonian dynamics (MOND). The constant a(0) involved in MOND is linear in the Debye frequency omega(D), which can be regarded as the largest frequency of the bits in screen. We find that there do have a strong connection between MOND and cosmology in the frame work of Verlinde's entropic force, if the holographic screen is taken to be bound of the Universe. The Debye frequency is linear in the Hubble constant H(0).
2011
ISSN0253-6102
Volume55Issue:4Pages:733-736
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [10525522, 10875129] ; National Natural Science Foundation of China [10525522, 10875129] ; National Natural Science Foundation of China [10525522, 10875129] ; National Natural Science Foundation of China [10525522, 10875129]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14384
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, X (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li, X,Chang, Z,Li, X . Debye Entropic Force and Modified Newtonian Dynamics[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2011,55(4):733-736.
APA Li, X,Chang, Z,&Li, X .(2011).Debye Entropic Force and Modified Newtonian Dynamics.COMMUNICATIONS IN THEORETICAL PHYSICS,55(4),733-736.
MLA Li, X,et al."Debye Entropic Force and Modified Newtonian Dynamics".COMMUNICATIONS IN THEORETICAL PHYSICS 55.4(2011):733-736.
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