Kinematic Approach to the Mixed State Geometric Phase in Nonunitary Evolution

D. M. Tong, E. Sjöqvist, L. C. Kwek, and C. H. Oh
Phys. Rev. Lett. 93, 080405 – Published 20 August 2004; Erratum Phys. Rev. Lett. 95, 249902 (2005)
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    Abstract

    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.

    • Received 2 December 2003

    DOI:https://doi.org/10.1103/PhysRevLett.93.080405

    ©2004 American Physical Society

    Erratum

    Erratum: Kinematic Approach to the Mixed State Geometric Phase in Nonunitary Evolution [Phys. Rev. Lett. 93, 080405 (2004)]

    D. M. Tong, E. Sjöqvist, L. C. Kwek, and C. H. Oh
    Phys. Rev. Lett. 95, 249902 (2005)

    Authors & Affiliations

    D. M. Tong1, E. Sjöqvist2,*, L. C. Kwek1,3, and C. H. Oh1,†

    • 1Department of Physics, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260
    • 2Department of Quantum Chemistry, Uppsala University, Box 518, Se-751 20 Uppsala, Sweden
    • 3National Institute of Education, Nanyang Technological University, 1 Nanyang Walk, Singapore 639798

    • *Electronic address: eriks@kvac.uu.se
    • †Electronic address: phyohch@nus.edu.sg

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    Vol. 93, Iss. 8 — 20 August 2004

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