Physics – Quantum Physics
Scientific paper
2004-05-17
Phys. Rev. Lett. 93, 080405 (2004)
Physics
Quantum Physics
Minor changes; journal reference added
Scientific paper
10.1103/PhysRevLett.93.080405
A kinematic approach to the geometric phase for mixed quantal states in
nonunitary evolution is proposed. This phase is manifestly gauge invariant and
can be experimentally tested in interferometry. It leads to well-known results
when the evolution is unitary.
Kwek Leong Chuan
Oh Chang-Heon
Sjöqvist Erik
Tong Dian-Min
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