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Open Quantum Systems Decoherence Quantum Simulation

Non-isospectral Hamiltonians, intertwining operators and hidden hermiticity

arXiv
Authors: Fabio Bagarello

Year

2011

Paper ID

29102

Status

Preprint

Abstract Read

~2 min

Abstract Words

88

Citations

N/A

Abstract

We have recently proposed a strategy to produce, starting from a given hamiltonian h1 and a certain operator x for which \[h1,xxdagger\]=0 and xdagger x is invertible, a second hamiltonian h2 with the same eigenvalues as h1 and whose eigenvectors are related to those of h1 by xdagger. Here we extend this procedure to build up a second hamiltonian, whose eigenvalues are different from those of h1, and whose eigenvectors are still related as before. This new procedure is also extended to crypto-hermitian hamiltonians.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • We have recently proposed a strategy to produce, starting from a given hamiltonian h1 and a certain operator x for which [h1,xx^dagger]=0 and x^dagger x is invertible, a second...

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