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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 80, Issue 5, Pages 389–394
(Mi jetpl2108)
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This article is cited in 32 scientific papers (total in 32 papers)
CONDENSED MATTER
Quantum phase transition for the BEC – BCS crossover in condensed matter physics and CPT violation in elementary particle physics
F. R. Klinkhamera, G. E. Volovikbc a Institute for Theoretical Physics, University of Karlsruhe (TH),
76128 Karlsruhe, Germany
b L. D. Landau Institute for Theoretical Physics RAS,
117940 Moscow, Russia
c Low Temperature Laboratory, Helsinki University of Technology,
FIN-02015 HUT, Finland
Abstract:
We discuss the quantum phase transition which separates a vacuum state with fully-gapped fermion spectrum from a vacuum state with topologically-protected Fermi points (gap nodes). In the context of condensed-matter physics, such a quantum phase transition with Fermi point splitting may occur for a system of ultracold fermionic atoms in the region of the BEC – BCS crossover, provided the Cooper pairing occurs in the non-$s$-wave channel. For elementary particle physics, the splitting of Fermi points may lead to CPT violation, neutrino oscillations, and other phenomena.
Received: 23.07.2004
Citation:
F. R. Klinkhamer, G. E. Volovik, “Quantum phase transition for the BEC – BCS crossover in condensed matter physics and CPT violation in elementary particle physics”, Pis'ma v Zh. Èksper. Teoret. Fiz., 80:5 (2004), 389–394; JETP Letters, 80:5 (2004), 343–347
Linking options:
https://www.mathnet.ru/eng/jetpl2108 https://www.mathnet.ru/eng/jetpl/v80/i5/p389
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Abstract page: | 289 | Full-text PDF : | 80 | References: | 75 |
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