Xiang-Guo Meng et al 2008 J. Phys. A: Math. Theor. 41 235208 doi:10.1088/1751-8113/41/23/235208
Modified Josephson equations for the mesoscopic LC circuit including two coupled Josephson junctions*
Xiang-Guo Meng, Ji-Suo Wang and Bao-Long Liang
Show affiliationsBased on the entangled state representation and Feynman's idea that 'electron pairs are bosons, ..., a bound pair acts as a Bose particle', we present a cooper-pair number-phase quantization scheme for the mesoscopic LC circuit including two coupled Josephson junctions (JJs). Then we use the Heisenberg equation of motion to obtain the modified current equation and voltage equation across each JJ, as well as the equation for realizing quantum control. Besides, we investigate how the phases in two JJs are affected mutually through the capacitor coupling and the coupled JJs.
- Footnote
- PACS
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03.67.Lx Quantum computation architectures and implementations
03.67.Mn Entanglement measures, witnesses, and other characterizations
- MSC
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81P68 Quantum computation and quantum cryptography (See also 68Q05, 94A60)
81S10 Geometry and quantization, symplectic methods (See also 53D50)
- Subjects
- Dates
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Issue 23 (13 June 2008)
Received 4 February 2008, in final form 21 April 2008
Published 19 May 2008
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Modified Josephson equations for the mesoscopic LC circuit including two coupled Josephson junctions
Xiang-Guo Meng et al 2008 J. Phys. A: Math. Theor. 41 235208
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