dorsal/arxiv
View SchemaAutofeedback scheme for preservation of macroscopic coherence in microwave cavities
| Authors | M. Fortunato, J. M. Raimond, P. Tombesi, D. Vitali |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9902071 |
| URL | https://arxiv.org/abs/quant-ph/9902071 |
| DOI | 10.1103/PhysRevA.60.1687 |
| Journal | Phys. Rev. A 60, 1687 (1999) |
Abstract
We present a scheme for controlling the decoherence of a linear superposition of two coherent states with opposite phases in a high-Q microwave cavity, based on the injection of appropriately prepared ``probe'' and ``feedback'' Rydberg atoms, improving the one presented in [D. Vitali et al., Phys. Rev. Lett. 79, 2442 (1997)]. In the present scheme, the information transmission from the probe to the feedback atom is directly mediated by a second auxiliary cavity. The detection efficiency for the probe atom is no longer a critical parameter, and the decoherence time of the superposition state can be significantly increased using presently available technology.
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"abstract": "We present a scheme for controlling the decoherence of a linear superposition\nof two coherent states with opposite phases in a high-Q microwave cavity, based\non the injection of appropriately prepared ``probe\u0027\u0027 and ``feedback\u0027\u0027 Rydberg\natoms, improving the one presented in [D. Vitali et al., Phys. Rev. Lett. 79,\n2442 (1997)]. In the present scheme, the information transmission from the\nprobe to the feedback atom is directly mediated by a second auxiliary cavity.\nThe detection efficiency for the probe atom is no longer a critical parameter,\nand the decoherence time of the superposition state can be significantly\nincreased using presently available technology.",
"arxiv_id": "quant-ph/9902071",
"authors": [
"M. Fortunato",
"J. M. Raimond",
"P. Tombesi",
"D. Vitali"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.60.1687",
"journal_ref": "Phys. Rev. A 60, 1687 (1999)",
"title": "Autofeedback scheme for preservation of macroscopic coherence in microwave cavities",
"url": "https://arxiv.org/abs/quant-ph/9902071"
},
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