共查询到20条相似文献,搜索用时 437 毫秒
1.
Jae-Weon Lee 《Foundations of Physics》2011,41(4):744-753
It is suggested that quantum mechanics is not fundamental but emerges from classical information theory applied to causal
horizons. The path integral quantization and quantum randomness can be derived by considering information loss of fields or
particles crossing Rindler horizons for accelerating observers. This implies that information is one of the fundamental roots
of all physical phenomena. The connection between this theory and Verlinde’s entropic gravity theory is also investigated. 相似文献
2.
Two well-known quantum corrections to the area law have been introduced in the literatures, namely, logarithmic and power-law
corrections. Logarithmic corrections, arises from loop quantum gravity due to thermal equilibrium fluctuations and quantum
fluctuations, while, power-law correction appears in dealing with the entanglement of quantum fields in and out the horizon.
Inspired by Verlinde’s argument on the entropic force, and assuming the quantum corrected relation for the entropy, we propose
the entropic origin for the Coulomb’s law in this note. Also we investigate the Uehling potential as a radiative correction
to Coulomb potential in 1-loop order and show that for some value of distance the entropic corrections of the Coulomb’s law
is compatible with the vacuum-polarization correction in QED. So, we derive modified Coulomb’s law as well as the entropy
corrected Poisson’s equation which governing the evolution of the scalar potential ϕ. Our study further supports the unification of gravity and electromagnetic interactions based on the holographic principle. 相似文献
3.
Verlinde’s recent work, which showed that gravity may be explained as entropic force caused by the changes of information
associated with the positions of material bodies, is extended to study the Unruh–Verlinde temperature and energy of a static
spherically symmetric charged black hole. The results indicate that the Unruh–Verlinde temperature is equal to the Hawking
temperature at the outer and inner horizons. The energy is dependent on the radius of the screen, which is also a consequence
of the Gauss’ laws of gravity and electrostatics. 相似文献
4.
5.
MOND theory explains the rotation curves of the galaxies. Verlinde’s ideas establish an entropic origin for gravitational forces and Tsallis principle generalizes the theory of Boltzmann–Gibbs. In this work we have promoted a connection between these recent approaches, that at first sight seemed to have few or no points in common, using the Mach’s principle as the background. In this way we have used Tsallis formalism to calculate the main parameters of the Machian Universe including the Hubble parameter and the age of the Universe. After that, we have also obtained a new value for the Tsallis parameter via Mach’s principle. Using Verlinde’s entropic gravity we have obtained new forms for MOND’s well established ingredients. Finally, based on the relations between particles and bits obtained here, we have discussed the idea of bits entanglement in the holographic screen. 相似文献
6.
In this paper, we have analyzed the nonextensive Tsallis statistical mechanics in the light of Verlinde’s formalism. We have obtained, with the aid of a noncommutative phase–space entropic gravity, a new bound for Tsallis nonextensive (NE) parameter (TNP) that is clearly different from the ones present in the current literature. We derived the Friedmann equations in a NE scenario. We also obtained here a relation between the gravitational constant and the TNP. 相似文献
7.
本文论证了四维静态黎曼时空中的视界普遍会产生Hawking辐射,辐射温度正比于视界的表面重力k。并把这一工作推广到电磁场存在的情况,指出影响Hawking辐射谱的静电势既可起源于视界内部的电荷,也可起源于视界外部的电荷。上述工作统一了史瓦西黑洞、Reissner-Nordstrm黑洞、Schwarzschild-deSitter宇宙的Hawking辐射和匀加速系的Rindler辐射。指出在Rindler辐射的问题上等效原理依然成立,Rindler辐射确实来源于该参考系的视界,Hawking辐射与时空的曲率
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8.
We show in detail that the entropic force of the static spherically symmetric spacetimes with unusual asymptotics can be calculated
through the Verlinde’s arguments. We introduce three different holographic screen candidates, which are first employed thoroughly
by Myung and Kim [Phys. Rev. D 81, 105012 (2010)] for Schwarzschild black hole solutions, in order to identify the entropic force arising between a charged dilaton black
hole and a test particle. The significance of the dilaton parameter on the entropic force is highlighted, and shown graphically. 相似文献
9.
Merab Gogberashvili Igor Kanatchikov 《International Journal of Theoretical Physics》2012,51(3):985-997
We discuss the emergence of relativistic effects in the Machian universe with a global preferred frame and use thermodynamic
considerations to clarify the origin of gravity as an entropic force and the origin of dark energy/cosmic acceleration as
related to the Hawking-Unruh temperature at the universe’s horizon. 相似文献
10.
11.
The solutions of Dirac equation in different regions of the complete extension of Rindler space are obtained near the event
horizons and in the asymptotic limits. Continuity of these solutions across the event horizons is established. The Green’s
functions are written down in the two causally disconnected regions, continued in the future (F) and past (P) regions using the techniques a la Boulware and a consistent scheme of Green’s functions in all regions is exhibited. 相似文献
12.
T. Padmanabhan 《General Relativity and Gravitation》2008,40(10):2031-2036
It is well known that one could determine the kinematics of gravity by using the Principle of Equivalence and local inertial frames. I describe how the dynamics of gravity can be similarly understood by suitable thought experiments in a local Rindler frame. This approach puts in proper
context several unexplained features of gravity and describes the dynamics of spacetime in a broader setting than in Einstein’s
theory.
First Award in the 2008 Essay Competition of the Gravity Research Foundation. 相似文献
13.
P. Narayana Swamy 《International Journal of Theoretical Physics》2009,48(8):2432-2440
Many of us are familiar with Feynman’s “proof” of 1948, as revealed by Dyson, which demonstrates that Maxwell equations of
electromagnetism are a consequence of Newton’s laws of motion of classical mechanics and the commutation relations of coordinate
and momentum of quantum mechanics. It was Feynman’s purpose to explore the universality of dynamics of particles while making
the fewest assumptions. We re-examine this formulation in the context of quantum gravity and show how Feynman’s derivation
can be extended to include quantum gravity. 相似文献
14.
Tower Wang 《中国科学:物理学 力学 天文学(英文版)》2014,57(9):1623-1629
Inspired by Verlinde’s idea,some modified versions of entropic gravity have been suggested.Extending them in a unified formalism,herein we derive the generalized gravitational equations accordingly.From gravitational equations,the energy-momentum conservation law and cosmological equations are investigated.The covariant conservation law of energy-momentum tensor severely constrains viable modifications of entropic gravity.A discrepancy arises when two independent methods are applied to the homogeneous isotropic universe,posing a serious challenge to modified models of entropic gravity. 相似文献
15.
T Padmanabhan 《Pramana》1990,35(3):317-323
The role of time coordinate in the realization of March’s principle is highlighted. It is shown that Mach’s principle is linked
to the definition of a ‘particle’. These results suggest a deep connection between quantum gravity and Mach’s principle. 相似文献
16.
In this paper we shall address this problem: Is quantum gravity constraints algebra closed and what are the quantum Einstein’s
equations. We shall investigate this problem in the de-Broglie-Bohm quantum theory framework. It is shown that the constraint
algebra is weakly closed and the quantum Einstein’s equations are derived. 相似文献
17.
We consider the formulation of the gravity theory first suggested by Regge and Teitelboim where the space-time is a four-dimensional
surface in a flat ten-dimensional space. We investigate a canonical formalism for this theory following the approach suggested
by Regge and Teitelboim. Under constructing the canonical formalism we impose additional constraints agreed with the equations
of motion. We obtain the exact form of the first-class constraint algebra. We show that this algebra contains four constraints
which form a subalgebra (the ideal), and if these constraints are fulfilled, the algebra becomes the constraint algebra of
the Arnowitt-Deser-Misner formalism of Einstein’s gravity. The reasons for the existence of additional first-class constraints
in the canonical formalism are discussed. 相似文献
18.
19.
Bas C. van Fraassen 《Foundations of Physics》2010,40(4):390-417
Carlo Rovelli’s inspiring “Relational Quantum Mechanics” serves several aims at once: it provides a new vision of what the
world of quantum mechanics is like, and it offers a program to derive the theory’s formalism from a set of simple postulates
pertaining to information processing. I propose here to concentrate entirely on the former, to explore the world of quantum
mechanics as Rovelli depicts it. It is a fascinating world in part because of Rovelli’s reliance on the information-theory
approach to the foundations of quantum mechanics, and in part because its presentation involves taking sides on a fundamental
divide within philosophy itself. 相似文献
20.
Sergiu I. Vacaru 《General Relativity and Gravitation》2012,44(4):1015-1042
We study possible links between quantum gravity phenomenology encoding Lorentz violations as nonlinear dispersions, the Einstein–Finsler
gravity models, EFG, and nonholonomic (non-integrable) deformations to Hořava–Lifshitz, HL, and/or Einstein’s general relativity,
GR, theories. EFG and its scaling anisotropic versions formulated as Hořava–Finsler models, HF, are constructed as covariant
metric compatible theories on (co) tangent bundle to Lorentz manifolds and respective anisotropic deformations. Such theories
are integrable in general form and can be quantized following standard methods of deformation quantization, A-brane formalism
and/or (perturbatively) as a nonholonomic gauge like model with bi-connection structure. There are natural warping/trapping
mechanisms, defined by the maximal velocity of light and locally anisotropic gravitational interactions in a (pseudo) Finsler
bulk spacetime, to four dimensional (pseudo) Riemannian spacetimes. In this approach, the HL theory and scenarios of recovering
GR at large distances are generated by imposing nonholonomic constraints on the dynamics of HF, or EFG, fields. 相似文献