Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1862595 | Physics Letters A | 2006 | 7 Pages |
Abstract
On the basis of Feynman's explanation about Cooper pair that “a bound pair act as a Bose particle” and the bosonic operator Hamiltonian of Josephson junction [H.-Y. Fan, Phys. Lett. A 289 (2001) 172] as well as the entangled state representation we introduce characteristic function and Wigner function in the sense of Cooper-pair number–phase. We employ the correlated-amplitude–number state representation to present it. The Cooper-pair number distribution and phase distribution are the marginal distributions of this Wigner distribution, respectively.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Hong-Yi Fan, Ji-Suo Wang, Shu-guang Liu,