A practical implementation of the Overlap-Dirac operator
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✦ hep-lat
hep-phhep-th
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implementationoperatoroverlap-diracpracticalapplicationcarrieddimensionalepsilon
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A practical implementation of the Overlap-Dirac operator ${{1+\gamma_5\epsilon(H)}\over 2}$ is presented. The implementation exploits the sparseness of $H$ and does not require full storage. A simple application to parity invariant three dimensional SU(2) gauge theory is carried out to establish that zero modes related to topology are exactly reproduced on the lattice.
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