| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Quantum Information Transfer Based on Frequency Modes in Circuit QED |
| WANG Chao-Quan** |
| Laboratory of Nanophotonic Functional Materials and Devices, SIPSE & LQIT, South China Normal University, Guangzhou 510006 |
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| Cite this article: |
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Abstract We propose a scheme for implementing quantum information transfer based on frequency modes of microwave photons in a superconducting circuit. In our proposal, quantum information can be encoded on frequency modes of microwave photons, which act as a qubit in the resonator. Operations for the qubit, which is a process involving parametric frequency conversion, can be implemented by adjusting biased-dc superconducting quantum interference (SQUID). The coupling between two resonators can be controlled by tuning the frequency of the LC circuit inserted by a dc SQUID with two Josephson-junctions (2JJ-SQUID). Compared with previous ones, our work can avoid dephasing and decoherence resulting from atom decay. In addition, the resonator which includes multiple photons in two frequency modes can play a role of an identical atomic ensemble, which could lead to photon blockade.
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Received: 07 May 2012
Published: 31 July 2012
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| PACS: |
42.50.Dv
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(Quantum state engineering and measurements)
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42.50.Ct
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(Quantum description of interaction of light and matter; related experiments)
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03.67.-a
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(Quantum information)
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