High-fidelity quantum memory realized via Wigner crystals of polar molecules

doi:10.1088/1674-1056/21/1/010308

Abstract The collective excitations of spin states of an ensemble of polar molecules are studied as a candidate for high-fidelity quantum memory. To avoid the collisional properties of the molecules, they are arranged in dipolar crystals under one or two dimensional trapping conditions. We calculate the lifetime of the quantum memory by identifying the dominant decoherence mechanisms and estimating their effects on gate operations when a molecular ensemble qubit is transferred to a microwave cavity.

Keywords: polar molecules quantum memory molecular dipolar crystals

Received: 13 August 2011
Revised: 05 September 2011
Accepted manuscript online:

PACS:	03.67.Lx	(Quantum computation architectures and implementations)
	33.80.-b	(Photon interactions with molecules)
	85.25.Cp	(Josephson devices)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11004029 and 11174052), the Natural Science Foundation of Jiangsu Province, China (Grant No. BK2010422), the Ph. D. Program Foundation of Ministry of Education of China, the

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Xue Peng(薛鹏) and Wu Jian-Zhi(午剑智) High-fidelity quantum memory realized via Wigner crystals of polar molecules 2012 Chin. Phys. B 21 010308

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