Open Questions: Physics of Information and Computation

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See also: Quantum gravity -- Quantum theory -- Quantum information and computing -- Black holes

Introduction

Black hole entropy

The holographic principle


Recommended references: Web sites

Recommended references: Magazine/journal articles

Recommended references: Books

Introduction



Recommended references: Web sites


Recommended references: Magazine/journal articles

Is Space Digital?
Michael Moyer
Scientific American, February 2012, pp 30-37
An inexpensive experiment using interferometry will attempt to find evidence that space is discontinuous at a small length scale.
Atoms of Space and Time
Lee Smolin
Scientific American, January 2004, pp. 66-75
Information in the Holographic Universe
Jacob D. Bekenstein
Scientific American, August 2003, pp. 58-65
Information is Physical
Rolf Landauer
Physics Today, May 1991, pp. 23-29
Quantum theory holds that obtaining information about a physical system affects the state of the system. This is in conflict with the idea that "information" is something inherently unphysical. The universe itself can be considered to be a sort of analog computer, and the discreteness implied by quantum theory suggests that use of continuous models may be physically unrealistic.


Recommended references: Books

Tom Siegfried -- The Bit and the Pendulum: From Quantum Computing to M-Theory - the New Physics of Information
John Wiley & Sons, 2000
The latest ideas in many branches of physics increasingly take account of the role played by information. The list of such areas includes quantum teleportation, quantum computation and cryptography, complexity theory, black holes, and M-theory.

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