The Fredholm Determinant for a Dirac Ham
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D. Waxman
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Article
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1995
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Elsevier Science
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English
β 530 KB
We consider the Fredholm determinant associated with two Hamiltonians \(H\) and \(H_{0}\). If these have discrete spectra with eigenvalues \(E_{n}\) and \(E_{n 0}\), respectively, then the Fredholm determinant, as a function of a complex variable \(z\), is \(\operatorname{Det}\left[(z-H) /\left(z-H_