dorsal/arxiv
View SchemaThe time-reversal test for stochastic quantum dynamics
| Authors | Mark R. Dowling, Peter D. Drummond, Matthew J. Davis, Piotr Deuar |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0411185 |
| URL | https://arxiv.org/abs/quant-ph/0411185 |
| DOI | 10.1103/PhysRevLett.94.130401 |
| Journal | Phys. Rev. Lett. 94, 130401 (2005) |
Abstract
The calculation of quantum dynamics is currently a central issue in theoretical physics, with diverse applications ranging from ultra-cold atomic Bose-Einstein condensates (BEC) to condensed matter, biology, and even astrophysics. Here we demonstrate a conceptually simple method of determining the regime of validity of stochastic simulations of unitary quantum dynamics by employing a time-reversal test. We apply this test to a simulation of the evolution of a quantum anharmonic oscillator with up to $6.022\times10^{23}$ (Avogadro's number) of particles. This system is realisable as a Bose-Einstein condensate in an optical lattice, for which the time-reversal procedure could be implemented experimentally.
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"abstract": "The calculation of quantum dynamics is currently a central issue in\ntheoretical physics, with diverse applications ranging from ultra-cold atomic\nBose-Einstein condensates (BEC) to condensed matter, biology, and even\nastrophysics. Here we demonstrate a conceptually simple method of determining\nthe regime of validity of stochastic simulations of unitary quantum dynamics by\nemploying a time-reversal test. We apply this test to a simulation of the\nevolution of a quantum anharmonic oscillator with up to $6.022\\times10^{23}$\n(Avogadro\u0027s number) of particles. This system is realisable as a Bose-Einstein\ncondensate in an optical lattice, for which the time-reversal procedure could\nbe implemented experimentally.",
"arxiv_id": "quant-ph/0411185",
"authors": [
"Mark R. Dowling",
"Peter D. Drummond",
"Matthew J. Davis",
"Piotr Deuar"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.94.130401",
"journal_ref": "Phys. Rev. Lett. 94, 130401 (2005)",
"title": "The time-reversal test for stochastic quantum dynamics",
"url": "https://arxiv.org/abs/quant-ph/0411185"
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