Geometric phases in a scattering process

Details Geometric phases in a scattering process Geometric phases in a scattering process

2011-03-19

arxiv.org/abs/1103.3740v1

Phys. Rev. A 84, 022114 (2011)

Physics

Quantum Physics

4 pages, 5 figures

Scientific paper

The study of geometric phase in quantum mechanics has so far be confined to discrete (or continuous) spectra and trace preserving evolutions. Consider only the transmission channel, a scattering process with internal degrees of freedom is neither a discrete spectrum problem nor a trace preserving process. We explore the geometric phase in a scattering process taking only the transmission process into account. We find that the geometric phase can be calculated by the some method as in an unitary evolution. The interference visibility depends on the transmission amplitude. The dependence of the geometric phase on the barrier strength and the spin-spin coupling constant is also presented and discussed.

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