Exact Chiral Invariance at Finite Density on Lattice

Exact Chiral Invariance at Finite Density on Lattice

A new lattice action is proposed for the overlap Dirac matrix with nonzero chemical potential. It is shown to preserve the full chiral invariance for all values of lattice spacing exactly. It is further demonstrated to arise in the domain wall formalism by coupling the chemical potential only to the...

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Veröffentlicht in:Journal of physics. Conference series 2013-01, Vol.432 (1), p.12019-5
Hauptverfasser: Gavai, Rajiv V, Sharma, Sayantan
Format: Artikel
Sprache:eng
Schlagworte:
Chemical potential
Density
Domain walls
Formalism
Invariance
Lattice vibration
Lattices
Mathematical analysis
Physics
Preserves
Walls
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Zusammenfassung:A new lattice action is proposed for the overlap Dirac matrix with nonzero chemical potential. It is shown to preserve the full chiral invariance for all values of lattice spacing exactly. It is further demonstrated to arise in the domain wall formalism by coupling the chemical potential only to the physically relevant wall modes.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/432/1/012019