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Abstract: Spin current of a Dirac particle is shown to be given by the geometric phase and in terms of the later, a closed form expression is obtained for the dissipationlessness of the spin current.
The non-unitary and non-cyclic geometric phase for two nonlinear coherent and one squeezed tates are formulated. Moreover, the nonlinear results are reduced to geometric phases of standard oherent and...
We derive an effective Hamiltonian for a quantum system constrained to a submanifold (the constraint manifold) of configuration space (the ambient space) by an infinite restoring force. We pay specia...
2006Vol.46No.4pp.631-634DOI: Unconventional Geometric Phase-Shift Gates Based on Superconducting Quantum Interference Devices Coupled to a Single-Mode Cavity SONG Ke-Hui,1,2 ZHOU ...
2006Vol.46No.1pp.51-54DOI: Influence of Bipartite Qubit Coupling on Geometric Phase XING Lei1 and LIANG Mai-Lin2 1 Department of Physics, Tsinghua University, Beijing 10...
2004Vol.42No.5pp.672-674DOI: Geometric Phase of a Coupled System H.S. Abdel-Aziz Mathematics Department, Faculty of Science, South Valley University, Sohag, Egypt ...
A two-component formulation of the Klein-Gordon equation is used to investigate the cyclic and noncyclic adiabatic geometric phases due to spatially homogeneous (Bianchi) cosmological models. It is sh...

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