Evolution operators for quantum chains

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2 Citations (Scopus)


Discrete-time evolution operators in integrable quantum lattice models are sometimes more fundamental objects than Hamiltonians. In this paper, we study an evolution operator for the one-dimensional integrable q-deformed Bose gas with XXZ-type impurities and find its spectrum. Evolution operators give a new interpretation of known integrable systems, for instance, our system describes apparently a simplest laser with a clear resonance peak in the spectrum
Original languageEnglish
Pages (from-to)209-213
Number of pages5
JournalJournal of Physics A: Mathematical and Theoretical
Publication statusPublished - 2007
Externally publishedYes


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