Matrix Algebras in Non-Hermitian Quantum Mechanics

Details Matrix Algebras in Non-Hermitian Quantum Mechanics Matrix Algebras in Non-Hermitian Quantum Mechanics

2010-12-04

arxiv.org/abs/1012.0906v4

Physics

Quantum Physics

Third revised version

Scientific paper

In principle, non-Hermitian quantum equations of motion can be formulated using as a starting point either the Heisenberg's or the Schr\"odinger's picture of quantum dynamics. Here it is shown in both cases how to map the algebra of commutators, defining the time evolution in terms of a non-Hermitian Hamiltonian, onto a non-Hamiltonian algebra with a Hermitian Hamiltonian. The logic behind such a derivation is reversible, so that any Hermitian Hamiltonian can be used in the formulation of non-Hermitian dynamics through a suitable algebra of generalized (non-Hamiltonian) commutators. These results provide a general structure (a template) for non-Hermitian equations of motion to be used in the computer simulation of open quantum systems dynamics.

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