0008108v2

related topics
{measurement, state, measurements}
{classical, space, random}
{state, states, coherent}
{time, wave, function}
{time, decoherence, evolution}
{energy, gaussian, time}
{operator, operators, space}
{equation, function, exp}
{field, particle, equation}
{bell, inequality, local}

Quantum nonlinear dynamics of continuously measured systems

A. J. Scott, G. J. Milburn

abstract: Classical dynamics is formulated as a Hamiltonian flow on phase space, while quantum mechanics is formulated as a unitary dynamics in Hilbert space. These different formulations have made it difficult to directly compare quantum and classical nonlinear dynamics. Previous solutions have focussed on computing quantities associated with a statistical ensemble such as variance or entropy. However a more direct comparison would compare classical predictions to the quantum for continuous simultaneous measurement of position and momentum of a single system. In this paper we give a theory of such measurement and show that chaotic behaviour in classical systems can be reproduced by continuously measured quantum systems.

oai_identifier:
oai:arXiv.org:quant-ph/0008108
categories:
quant-ph nlin.CD
comments:
11 pages, REVTEX, 3 figures
doi:
10.1103/PhysRevA.63.042101
arxiv_id:
quant-ph/0008108
journal_ref:
Phys. Rev. A 63, 042101 (2001)
created:
2000-08-25
updated:
2000-11-15

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