DocumentCode
2150023
Title
Quantum state protection with quantum feedback schemes
Author
Vitali, David ; Zippilli, Stefano ; Tombesi, Paolo ; Raimond, J.-M.
Author_Institution
Dipt. di Fisica & Unita INFM, Univ. di Camerino, Italy
Volume
3
fYear
2003
fDate
20-22 Aug. 2003
Firstpage
840
Abstract
We present a scheme able to protect the quantum states of a cavity mode against the decohering effects of photon loss. The scheme preserves quantum states with a definite parity, and it is implemented by sending single atoms, one by one, through the cavity. By solving numerically the exact master equation of the system we show that the protection of simple quantum states could be experimentally demonstrated using presently available experimental apparatus.
Keywords
feedback; master equation; measurement theory; photon counting; quantum electrodynamics; quantum theory; Fock states; cavity mode; closed-loop schemes; decoherence effects; exact master equation; microwave cavity QED; photon counting; photon loss; quantum feedback schemes; quantum state protection; single atoms; Actuators; Atomic measurements; Control systems; Encoding; Equations; Feedback loop; Open loop systems; Petroleum; Protection; State feedback;
fLanguage
English
Publisher
ieee
Conference_Titel
Physics and Control, 2003. Proceedings. 2003 International Conference
Print_ISBN
0-7803-7939-X
Type
conf
DOI
10.1109/PHYCON.2003.1237012
Filename
1237012
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