Time evolution and dynamical phase transitions at a critical time in a system of one-dimensional bosons after a quantum quench

Aditi Mitra

    Research output: Contribution to journalArticle

    Abstract

    A renormalization group approach is used to show that a one-dimensional system of bosons subject to a lattice quench exhibits a finite-time dynamical phase transition where an order parameter within a light cone increases as a nonanalytic function of time after a critical time. Such a transition is also found for a simultaneous lattice and interaction quench where the effective scaling dimension of the lattice becomes time dependent, crucially affecting the time evolution of the system. Explicit results are presented for the time evolution of the boson interaction parameter and the order parameter for the dynamical transition as well as for more general quenches.

    Original languageEnglish (US)
    Article number260601
    JournalPhysical Review Letters
    Volume109
    Issue number26
    DOIs
    StatePublished - Dec 26 2012

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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