SU(1,1)-type light-atom-correlated interferometer
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 023847 |
| Journal / Publication | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 92 |
| Issue number | 2 |
| Publication status | Published - 24 Aug 2015 |
| Externally published | Yes |
Link(s)
Abstract
The quantum correlation of light and atomic collective excitation can be used to compose an SU(1,1)-type hybrid light-atom interferometer, where one arm in the optical SU(1,1) interferometer is replaced by the atomic collective excitation. The phase-sensing probes include not only the photon field but also the atomic collective excitation inside the interferometer. For a coherent squeezed state as the phase-sensing field, the phase sensitivity can approach the Heisenberg limit under the optimal conditions. We also study the effects of the loss of light field and the dephasing of atomic excitation on the phase sensitivity. This kind of active SU(1,1) interferometer can also be realized in other systems, such as circuit quantum electrodynamics in microwave systems, which provides a different method for basic measurement using the hybrid interferometers.
Bibliographic Note
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Citation Format(s)
SU(1,1)-type light-atom-correlated interferometer. / Ma, Hongmei; Li, Dong; Yuan, Chun-Hua et al.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 92, No. 2, 023847, 24.08.2015.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
