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Overlap Dirac operator at nonzero chemical potential and random matrix theory

Bloch, Jacques and Wettig, Tilo (2006) Overlap Dirac operator at nonzero chemical potential and random matrix theory. Physical Review Letters 97, 012003.

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We$^{ }$show how to introduce a quark chemical potential in the$^{ }$overlap Dirac operator. The resulting operator satisfies a Ginsparg-Wilson relation$^{ }$and has exact zero modes. It is no longer $\gamma$$_{5}$$^{ }$Hermitian, but its nonreal eigenvalues still occur in pairs. We$^{ }$compute the spectral density of the operator on the lattice$^{ }$and show that, for small eigenvalues, the ...


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Item type:Article
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Tilo Wettig
Projects:Forschergruppe Gitter-Hadronen-Phänomenologie
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Deposited on:20 Mar 2007
Last modified:13 Mar 2014 10:07
Item ID:1846
Owner only: item control page


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