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Quantum phase transitions in nonhermitian harmonic oscillator

The Stone theorem requires that in a physical Hilbert space [Formula: see text] the time-evolution of a stable quantum system is unitary if and only if the corresponding Hamiltonian H is self-adjoint. Sometimes, a simpler picture of the evolution may be constructed in a manifestly unphysical Hilbert...

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Detalles Bibliográficos
Autor principal: Znojil, Miloslav
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7595148/
https://www.ncbi.nlm.nih.gov/pubmed/33116205
http://dx.doi.org/10.1038/s41598-020-75468-w