|
| related topics |
| {energy, state, states} |
| {trap, ion, state} |
| {time, decoherence, evolution} |
| {state, phys, rev} |
| {state, states, entangled} |
| {state, algorithm, problem} |
| {phase, path, phys} |
| {level, atom, field} |
| {equation, function, exp} |
| {vol, operators, histories} |
| {temperature, thermal, energy} |
| {field, particle, equation} |
|
Generation of many-particle entanglement in an ion trap by adiabatic
ground-state transitions
R. G. Unanyan, M. Fleischhauer
abstract: We discuss the creation of many-particle entanglement in an ion trap where
all ions are simultaneously coupled to bichromatic laser fields. It is shown
that in a time-averaged, coarse-grained picture the system can be mapped onto a
spin ensemble with controllable collective interactions. An adiabatic change of
laser parameters allows a transfer from separable to entangled eigenstates of
the many-particle Hamiltonian. Of particular interest is a transition in the
ground state which in some cases corresponds to a quantum phase transition. The
influence of decoherence mechanisms can be substantially reduced if at all
times a sufficiently large energy gap between the ground state and the first
excited state is maintained.
- oai_identifier:
- oai:arXiv.org:quant-ph/0208144
- categories:
- quant-ph
- comments:
- 4 pages, 3 figures
- arxiv_id:
- quant-ph/0208144
- created:
- 2002-08-23
- updated:
- 2003-01-06
Full article ▸
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