Quantum phase transition for the BCS–BEC crossover in condensed matter physics and for CPT violation in elementary particle physics
نویسنده
چکیده
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 ultra-cold fermionic atoms in the region of the BCS–BEC 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
منابع مشابه
Quantum phase transition for the BEC–BCS crossover in condensed matter physics and CPT violation in elementary particle physics
We discuss the quantum phase transition that separates a vacuum state with fullygapped 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 Cooper pairing...
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