Theory of Response to Perturbations in Non-Hermitian Systems Using Five-Hilbert-Space Reformulation of Unitary Quantum Mechanics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F20%3A00523763" target="_blank" >RIV/61389005:_____/20:00523763 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/e22010080" target="_blank" >https://doi.org/10.3390/e22010080</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/e22010080" target="_blank" >10.3390/e22010080</a>

Result language
angličtina
Original language name
Theory of Response to Perturbations in Non-Hermitian Systems Using Five-Hilbert-Space Reformulation of Unitary Quantum Mechanics
Original language description
Non-Hermitian quantum-Hamiltonian-candidate combination H lambda of a non-Hermitian unperturbed operator H=H0 with an arbitrary 'small' non-Hermitian perturbation lambda W is given a mathematically consistent unitary-evolution interpretation. The formalism generalizes the conventional constructive Rayleigh-Schrodinger perturbation expansion technique. It is sufficiently general to take into account the well known formal ambiguity of reconstruction of the correct physical Hilbert space of states. The possibility of removal of the ambiguity via a complete, irreducible set of observables is also discussed.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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