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001-es BibID:	BIBFORM084286
Első szerző:	Noble, J. H.
Cím:	Generalized Householder transformations for the complex symmetric eigenvalue problem / J. H. Noble, Michael Lubasch, Ulrich David Jentschura
Dátum:	2013
ISSN:	2190-5444
Megjegyzések:	We present an intuitive and scalable algorithm for the diagonalization of complex symmetric matrices, which arise from the projection of pseudo-Hermitian and complex scaled Hamiltonians onto a suitable basis set of "trial" states. The algorithm diagonalizes complex and symmetric (non-Hermitian) matrices and is easily implemented in modern computer languages. It is based on generalized Householder transformations and relies on iterative similarity transformations T ? T = QTT Q, where Q is a complex and orthogonal, but not unitary, matrix, i.e. QT = Q ?1 but Q+ = Q ?1. We present numerical reference data to support the scalability of the algorithm. We construct the generalized Householder transformations from the notion that the conserved scalar product of eigenstates ?n and ?m of a pseudo-Hermitian quantum mechanical Hamiltonian can be reformulated in terms of the generalized indefinite inner product R dx?n(x, t) ?m(x, t), where the integrand is locally defined, and complex conjugation is avoided. A few example calculations are described which illustrate the physical origin of the ideas used in the construction of the algorithm.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	The European Physical Journal Plus. - 128 : 8 (2013), p. 93. -
További szerzők:	Lubasch, Michael Jentschura, Ulrich David (fizikus)
Pályázati támogatás:	National Science Foundation (Grant PHY-1068547) Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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