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arXiv · 1306.6229

Time crystals: can diamagnetic currents drive a charge density wave into rotation?

Philippe Nozières
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Abstract

It has been argued recently that an inhomogeneous system could rotate spontaneously in its ground state - hence a 'time crystal' which is periodic in time. In this note we present a very simple example: a superfluid ring threaded by a magnetic field which develops a charge density wave (CDW). A naive calculation shows that diamagnetic currents cannot drive rotation of the CDW, with a clear picture of the cancellation mechanism.

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Philippe Nozières. 2013-06-26. Time crystals: can diamagnetic currents drive a charge density wave into rotation?. https://doi.org/10.1209/0295-5075%2F103%2F57008

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