Multiply Degenerate Exceptional Points and Quantum Phase Transitions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00451497" target="_blank" >RIV/61389005:_____/15:00451497 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10773-014-2493-y" target="_blank" >http://dx.doi.org/10.1007/s10773-014-2493-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10773-014-2493-y" target="_blank" >10.1007/s10773-014-2493-y</a>

Result language
angličtina
Original language name
Multiply Degenerate Exceptional Points and Quantum Phase Transitions
Original language description
The realization of a genuine phase transition in quantum mechanics requires that at least one of the Kato's exceptional-point parameters becomes real. A new family of finite-dimensional and time-parametrized quantum-lattice models with such a property isproposed and studied. All of them exhibit, at a real exceptional-point time t = 0, the Jordan-block spectral degeneracy structure of some of their observables sampled by Hamiltonian H(t) and site-position Q(t). The passes through the critical instant t= 0 are interpreted as schematic simulations of non-equivalent versions of the Big-Bang-like quantum catastrophes.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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