Non-Markovian Particle Dynamics in Continuously Controlled Quantum Gases

Details Non-Markovian Particle Dynamics in Continuously Controlled Quantum Gases Non-Markovian Particle Dynamics in Continuously Controlled Quantum Gases

2004-11-30

arxiv.org/abs/quant-ph/0411208v1

Physics

Quantum Physics

5 pages, 2 figures, accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.93.260603

For a quantum gas, being subject to continuous feedback of a macroscopic observable, the single-particle dynamics is studied. Albeit feedback-induced particle correlations, it is shown that analytic solutions are obtained by formally extending the single-particle Hilbert space by an auxiliary degree of freedom. The particle's motion is then fed by colored noise, which effectively maps quantum-statistical correlations onto the single particle. Thus, the single particle in the continuously controlled gas follows a non-Markovian trajectory in phase-space.

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