|
| related topics |
| {time, decoherence, evolution} |
| {energy, state, states} |
| {entanglement, phys, rev} |
| {state, states, entangled} |
| {temperature, thermal, energy} |
| {classical, space, random} |
| {light, field, probe} |
| {state, algorithm, problem} |
| {time, wave, function} |
| {cos, sin, state} |
| {states, state, optimal} |
| {trap, ion, state} |
| {vol, operators, histories} |
|
Spin gases as microscopic models for non-Markovian decoherence
L. Hartmann, J. Calsamiglia, W. Dür, H. J. Briegel
abstract: We analyze a microscopic decoherence model in which the total system is
described as a spin gas. A spin gas consists of N classically moving particles
with additional, interacting quantum degrees of freedom (e.g. spins). For
various multipartite entangled probe states, we analyze the decoherence induced
by interactions between the probe- and environmental spins in such spin gases.
We can treat mesoscopic environments (10^5 particles). We present results for a
lattice gas, which could be realized by neutral atoms hopping in an optical
lattice, and show the effects of non-Markovian and correlated noise, as well as
finite size effects.
- oai_identifier:
- oai:arXiv.org:quant-ph/0506208
- categories:
- quant-ph
- comments:
- 4 pages, 4 figures
- doi:
- 10.1103/PhysRevA.72.052107
- arxiv_id:
- quant-ph/0506208
- journal_ref:
- Phys. Rev. A 72, 052107 (2005)
- created:
- 2005-06-24
Full article ▸
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