Off-diagonal long-range order: Meissner effect and flux quantization
نویسندگان
چکیده
منابع مشابه
Relation between Feynman cycles and off-diagonal long-range order.
The usual order parameter for Bose-Einstein condensation involves the off-diagonal correlation function of Penrose and Onsager, but an alternative is Feynman's notion of infinite cycles. We present a formula that relates both order parameters. We discuss its validity with the help of rigorous results and heuristic arguments. The conclusion is that infinite cycles do not always represent the Bos...
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The Hamiltonian describing a conductor surrounding an external magnetic field contains a nonvanishing vector potential in the volume accessible to the electrons and nuclei of which the conductor is made. That vector potential cannot be removed by a gauge transformation. Nevertheless, a macroscopic normal conductor can experience no Aharonov-Bohm effect. That is proved by assuming only that a no...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1995
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.51.3760