|
| related topics |
| {cavity, atom, atoms} |
| {energy, state, states} |
| {state, states, coherent} |
| {level, atom, field} |
| {light, field, probe} |
| {wave, scattering, interference} |
| {trap, ion, state} |
| {temperature, thermal, energy} |
| {classical, space, random} |
| {measurement, state, measurements} |
|
Probing quantum phases of ultracold atoms in optical lattices by
transmission spectra in cavity QED
Igor. B. Mekhov, Christoph Maschler, Helmut Ritsch
abstract: Studies of ultracold atoms in optical lattices link various disciplines,
providing a playground where fundamental quantum many-body concepts, formulated
in condensed-matter physics, can be tested in much better controllable atomic
systems, e.g., strongly correlated phases, quantum information processing.
Standard methods to measure quantum properties of Bose-Einstein condensates
(BECs) are based on matter-wave interference between atoms released from traps
which destroys the system. Here we propose a nondestructive method based on
optical measurements, and prove that atomic statistics can be mapped on
transmission spectra of a high-Q cavity. This can be extremely useful for
studying phase transitions between Mott insulator and superfluid states, since
various phases show qualitatively distinct light scattering. Joining the
paradigms of cavity quantum electrodynamics (QED) and ultracold gases will
enable conceptually new investigations of both light and matter at ultimate
quantum levels, which only recently became experimentally possible. Here we
predict effects accessible in such novel setups.
- oai_identifier:
- oai:arXiv.org:quant-ph/0702125
- categories:
- quant-ph physics.atom-ph physics.optics
- comments:
- 6 pages, 3 figures
- doi:
- 10.1038/nphys571
- arxiv_id:
- quant-ph/0702125
- journal_ref:
- Nature Phys. 3, 319 (2007)
- created:
- 2007-02-13
- updated:
- 2007-11-21
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