Quantum phase transition for the BEC-BCS crossover in condensed matter physics and CPT violation in elementary particle physics

被引：25

作者：

Klinkhamer, FR ^{[1
]}

Volovik, GE

机构：

[1] Univ Karlsruhe TH, Inst Theoret Phys, D-76128 Karlsruhe, Germany

[2] Aalto Univ, Low Temp Lab, FIN-02015 Espoo, Finland

[3] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117940, Russia

来源：

JETP LETTERS | 2004年 / 80卷 / 05期

关键词：

D O I：

10.1134/1.1825119

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss the quantum phase transition that 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 BEC-BCS crossover, provided 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. (C) 2004 MAIK "Nauka / Interperiodica".

引用

页码：343 / 347

页数：5

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