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APS » Journals » Phys. Rev. Lett. » Volume 95 » Issue 13
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Phys. Rev. Lett. 95, 135301 (2005) [4 pages]

Observation of a Metallic Superfluid in a Numerical Experiment

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E. Smørgrav1, E. Babaev2,1, J. Smiseth1, and A. Sudbø1
1Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
2Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA

Received 8 June 2005; published 23 September 2005

See accompanying Physics Focus

We report the observation, in Monte Carlo simulations, of a novel type of quantum ordered state: the metallic superfluid. The metallic superfluid features Ohmic resistance to counterflows of protons and electrons, while featuring dissipationless coflows of electrons and protons. One of the candidates for a physical realization of this remarkable state of matter is hydrogen or its isotopes under high compression. This adds another potential candidate to the presently known quantum dissipationless states, namely, superconductors, superfluid liquids and vapors, and supersolids.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.135301
DOI:
10.1103/PhysRevLett.95.135301
PACS:
67.90.+z, 11.15.Ha, 71.10.Hf, 74.10.+v
 
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