|
| related topics |
| {time, decoherence, evolution} |
| {energy, state, states} |
| {spin, pulse, spins} |
| {state, algorithm, problem} |
| {group, space, representation} |
| {state, phys, rev} |
| {time, wave, function} |
| {equation, function, exp} |
| {temperature, thermal, energy} |
| {states, state, optimal} |
| {entanglement, phys, rev} |
| {cos, sin, state} |
|
Universal destabilization and slowing of spin transfer functions by a
bath of spins
Daniel Burgarth, Sougato Bose
abstract: We investigate the effect of a spin bath on the spin transfer functions of a
permanently coupled spin system. When each spin is coupled to a seperate
environment, the effect on the transfer functions in the first excitation
sector is amazingly simple: the group velocity is slowed down by a factor of
two, and the fidelity is destabilized by a modulation of |cos Gt|, where G is
the mean square coupling to the environment.
- oai_identifier:
- oai:arXiv.org:quant-ph/0601047
- categories:
- quant-ph
- comments:
- 4 pages, 5 figures; added references
- doi:
- 10.1103/PhysRevA.73.062321
- arxiv_id:
- quant-ph/0601047
- journal_ref:
- Physical Review A 73, 062321 (2006)
- created:
- 2006-01-08
- updated:
- 2006-03-17
Full article ▸
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