one may expect
fluctuations around the macroscopic
[PDF]Emergence in Holographic Scenarios for Gravity - PhilSci ...
philsci-archive.pitt.edu/.../4/Emergence_hol_gravity_final_Phil_Sci.pdf
by D Dieks - 2014 - Cited by 1 - Related articles
Recently, Erik Verlinde has proposed that even Newton's law ..... appeared to be two equivalent ways of describing, in the low-energy limit of small string length ...
4.1 Holography and Newton's law of gravitation
Imagine a closed two-dimensional space, e.g. the surface of a sphere, on which a quantum
theory is de ned. Verlinde remains quite unspeci c about this quantum theory (this
is one of the salient points in his proposal). It is su cient to assume that the theory
describes physical processes on the surface which can be characterized in a quite general
information-theoretic way, as `changes in information'. More concretely, the surface area
of the sphere is imagined to be divided in small cells, each of which can contain one bit
of information. A physical state corresponds to a distribution of 0-s and 1-s over these
cells, and evolution of the state corresponds to a change in time of this distribution. The
holographic principle now suggests that such a surface theory can also represent physical
processes that go on inside the sphere. In particular, the bits on the surface may encode
where matter is located in the interior.
The number of bits on the sphere is assumed to be very large, so that Verlinde assumes that
an e ective thermodynamic description can be used instead of the original quantum theory
de ned on the micro-level of the cells and bits.
Imagine a closed two-dimensional space, e.g. the surface of a sphere, on which a quantum
theory is de ned. Verlinde remains quite unspeci c about this quantum theory (this
is one of the salient points in his proposal). It is su cient to assume that the theory
describes physical processes on the surface which can be characterized in a quite general
information-theoretic way, as `changes in information'. More concretely, the surface area
of the sphere is imagined to be divided in small cells, each of which can contain one bit
of information. A physical state corresponds to a distribution of 0-s and 1-s over these
cells, and evolution of the state corresponds to a change in time of this distribution. The
holographic principle now suggests that such a surface theory can also represent physical
processes that go on inside the sphere. In particular, the bits on the surface may encode
where matter is located in the interior.
The number of bits on the sphere is assumed to be very large, so that Verlinde assumes that
an e ective thermodynamic description can be used instead of the original quantum theory
de ned on the micro-level of the cells and bits.
Mysteries Of Physics - Particle Central
www.particlecentral.com/mysteries_page.html
Newton's equations accurately describe gravity events here on earth. ... Dr. Erik Verlinde is a respected Professor of Physics and String Theory at the ... Temperature is the statistical average energy of billions of molecules in a given volume. .... with the luminous matter in the other cluster, causing both of them to slow down.
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