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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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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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Nature Publishing Group UK
2020
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| 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 |