[time 1004] Machines, Logic and Quantum Physics

Stephen Paul King (stephenk1@home.com)
Fri, 19 Nov 1999 01:06:24 -0500

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Hi All,

Any Comments?

http://xxx.lanl.gov/abs/quant-ph/9906007

Quantum Physics, abstract
quant-ph/9906007

From: David Deutsch <david.deutsch@qubit.org>
Date (v1): Tue, 1 Jun 1999 18:06:54 GMT   (261kb)
Date (revised v2): Fri, 4 Jun 1999 15:29:03 GMT   (261kb)

Information Flow in Entangled Quantum Systems

Authors: David Deutsch, Patrick Hayden
Comments: PostScript version now available: this http URL

All information in quantum systems is, notwithstanding Bell's theorem, localised. Measuring or otherwise interacting with a quantum system S has no effect on distant systems from which S is dynamically isolated, even if they are entangled with S. Using the Heisenberg picture to analyse quantum information processing makes this locality explicit, and reveals that under some circumstances (in particular, in Einstein-Podolski-Rosen experiments and in quantum teleportation) quantum information is transmitted through 'classical' (i.e. decoherent) information channels.

Paper: PDF only

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