|
related topics |
{cavity, atom, atoms} |
{time, wave, function} |
{measurement, state, measurements} |
{state, algorithm, problem} |
{state, states, coherent} |
{level, atom, field} |
{trap, ion, state} |
{energy, state, states} |
{cos, sin, state} |
{light, field, probe} |
{energy, gaussian, time} |
{state, phys, rev} |
{information, entropy, channel} |
|
Quantum Feedback Control of Atomic Motion in an Optical Cavity
Daniel A. Steck, Kurt Jacobs, Hideo Mabuchi, Tanmoy Bhattacharya, Salman Habib
abstract: We study quantum feedback cooling of atomic motion in an optical cavity as a
prototypical nonlinear quantum control problem. We design a feedback algorithm
that can cool the atom to the ground state of the optical potential with high
efficiency despite the nonlinear nature of this problem. An important
ingredient is a simplified state-estimation algorithm, necessary for a
real-time implementation of the feedback loop. We also describe the critical
role of parity dynamics in the cooling process and present a simple theory that
predicts the achievable steady-state atomic energies.
- oai_identifier:
- oai:arXiv.org:quant-ph/0310153
- categories:
- quant-ph
- comments:
- 5 pages, 4 figures; v2 includes minor corrections (no content
change); v3 includes minor wording/figure changes to match published PRL
version
- doi:
- 10.1103/PhysRevLett.92.223004
- arxiv_id:
- quant-ph/0310153
- journal_ref:
- Phys. Rev. Lett. 92 (2004) 223004
- report_no:
- LA-UR-03-6826
- created:
- 2003-10-24
- updated:
- 2004-06-24
Full article ▸
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