Geometric phase of two-qubit system in dephasing environment
Xiaoya Cai, Hui Pan, Z. S. Wang
We investigated the geometric phase for interaction between superconducting two-qubit system in dephased environment. The Pancharatnam phase and the Berry phase are studied. Numerical results are discussed. By considering the differently initial conditions, we find that the time-dependent Pancharatnam phase keeps the initial entangling message. On the other hand, the transition of Pancharatnam phase is dependent of the phase change in the superconducting two-qubit coupling system. Our results may be helpful to implement the time-dependent geometric quantum computation.
International Journal of Modern Physics B•Nov 13, 2015•1 citation