|
| related topics |
| {energy, state, states} |
| {entanglement, phys, rev} |
| {temperature, thermal, energy} |
| {time, decoherence, evolution} |
| {measurement, state, measurements} |
| {state, phys, rev} |
| {cos, sin, state} |
| {time, wave, function} |
| {information, entropy, channel} |
| {light, field, probe} |
| {bell, inequality, local} |
| {group, space, representation} |
| {operator, operators, space} |
| {spin, pulse, spins} |
| {error, code, errors} |
|
Quantum entanglement dynamics and decoherence wave in spin chains at
finite temperatures
S. D. Hamieh, M. I. Katsnelson
abstract: We analyze the quantum entanglement at the equilibrium in a class of exactly
solvable one-dimensional spin models at finite temperatures and identify a
region where the quantum fluctuations determine the behavior of the system. We
probe the response of the system in this region by studying the spin dynamics
after projective measurement of one local spin which leads to the appearance of
the ``decoherence wave''. We investigate time-dependent spin correlation
functions, the entanglement dynamics, and the fidelity of the quantum
information transfer after the measurement.
- oai_identifier:
- oai:arXiv.org:quant-ph/0507266
- categories:
- quant-ph
- comments:
- Phys. Rev. A, accepted for publication
- doi:
- 10.1103/PhysRevA.72.032316
- arxiv_id:
- quant-ph/0507266
- created:
- 2005-07-28
Full article ▸
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