title: Unification of the family of Garrison-Wright's phases.
abstract: Inspired by Garrison and Wight's seminal work on complex-valued geometric phases, we generalize the concept of Pancharatnam's "in-phase" in interferometry and further develop a theoretical framework for unification of the abelian geometric phases for a biorthogonal quantum system modeled by a parameterized or time-dependent nonhermitian hamiltonian with a finite and nondegenerate instantaneous spectrum, that is, the family of Garrison-Wright's phases, which will no longer be confined in the adiabatic and nonadiabatic cyclic cases. Besides, we employ a typical example, Bethe-Lamb model, to illustrate how to apply our theory to obtain an explicit result for the Garrison-Wright's noncyclic geometric phase, and also to present its potential applications in quantum computation and information.
authors: School of Physics, Shandong University, Jinan 250100, China.
authors: Xiao-Dong
authors: XD
authors: Cui
authors: School of Physics, Shandong University, Jinan 250100, China.
authors: Yujun
authors: Y
authors: Zheng