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Calculation of the metric in the Hilbert space of a PT-symmetric model via the spectral theorem

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F08%3A00311168" target="_blank" >RIV/61389005:_____/08:00311168 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Calculation of the metric in the Hilbert space of a PT-symmetric model via the spectral theorem

  • Original language description

    n a previous paper [1] we introduced a very simple PT-symmetric non-Hermitian Hamiltonian with a real spectrum and derived a closed formula for the metric operator relating the problem to a Hermitian one. In this paper we propose an alternative formula for the metric operator, which we believe is more elegant and whose construction-based on a backward use of the spectral theorem for self-adjoint operators-provides new insights into the nature of the model.

  • Czech name

    Výpočet metriky v Hilbertově prostoru PT-symetrického modelu pomocí spektrálního terorému

  • Czech description

    V předchozím článku (J.Phys.A39-2006, 10143-10152) jsme zavedli jednoduchý PT-symetrický nehermitovský hamiltonián s reálným spektrem a odvodili Formulku pro metrický operátor v uzavřeném tvaru.V tomto článku navrhujeme alternativní metodu pro výpočet metriky, jež je založena na obráceném užití spektrálního teorému.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BA - General mathematics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LC06002" target="_blank" >LC06002: Doppler Institute for Mathematical Physics and Applied Mathematics</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Physics A-Mathematical and Theoretical

  • ISSN

    1751-8113

  • e-ISSN

  • Volume of the periodical

    41

  • Issue of the periodical within the volume

    24

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    4

  • Pages from-to

  • UT code for WoS article

    000256388200013

  • EID of the result in the Scopus database