Dynamical Quantum Phase Transitions in the 1D Nonintegrable Spin‐1/2 Transverse Field XZZ Model
Sign Up to like & getrecommendations! Published in 2021 at "Annalen der Physik"
DOI: 10.1002/andp.202000542
Abstract: Using the Jordan–Wigner mean‐field (JW‐MF) approach, the dynamical quantum phase transition (DQPT) in the 1D spin‐1/2 XZZ model is studied, where the presence of the transverse magnetic field breaks the U(1) symmetry of the Hamiltonian… read more here.
Keywords: phase; dynamical quantum; field; xzz model ... See more keywords
Topological classification of dynamical quantum phase transitions in the xy chain
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-69621-8
Abstract: Understanding the properties of far-from-equilibrium quantum systems is becoming a major challenge of both fundamental and applied physics. For instance, the lack of thermalization in integrable and (many body) localized systems provides new insights in… read more here.
Keywords: chain; phase; quantum; dynamical quantum ... See more keywords
Non-Hermitian topological phases and dynamical quantum phase transitions: a generic connection
Sign Up to like & getrecommendations! Published in 2021 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ac0574
Abstract: The dynamical and topological properties of non-Hermitian systems have attracted great attention in recent years. In this work, we establish an intrinsic connection between two classes of intriguing phenomena—topological phases and dynamical quantum phase transitions… read more here.
Keywords: phase; dynamical quantum; phases dynamical; connection ... See more keywords
Floquet dynamical quantum phase transitions in transverse XY spin-chains under periodic kickings
Sign Up to like & getrecommendations! Published in 2023 at "Chinese Physics B"
DOI: 10.1088/1674-1056/accf68
Abstract: Floquet dynamical quantum phase transitions(DQPTs), which are nonanalytic phenomena recur periodically in time-periodic driven quantum many body systems, have been widely studied in recent years. In this article, the Floquet DQPTs in transverse XY spin-chains… read more here.
Keywords: phase; dynamical quantum; transverse spin; phase transitions ... See more keywords
Dynamical quantum phase transitions in non-Hermitian lattices
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.98.022129
Abstract: In closed quantum systems, a dynamical phase transition is identified by nonanalytic behaviors of the return probability as a function of time. In this work, we study the nonunitary dynamics following quenches across exceptional points… read more here.
Keywords: phase; dynamical quantum; phase transitions; non hermitian ... See more keywords
Quasiperiodic dynamical quantum phase transitions in multiband topological insulators and connections with entanglement entropy and fidelity susceptibility
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.014301
Abstract: We investigate the Loschmidt amplitude and dynamical quantum phase transitions in multiband one-dimensional topological insulators. For this purpose we introduce a new solvable multiband model based on the Su-Schrieffer-Heeger model, generalized to unit cells containing… read more here.
Keywords: dynamical quantum; quantum phase; phase transitions; fidelity ... See more keywords
Dynamical quantum phase transitions in a mesoscopic superconducting system
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.105.094514
Abstract: We inspect signatures of dynamical quantum phase transitions driven by two types of quenches acting on a correlated quantum dot embedded between superconducting and metallic reservoirs. Under stationary conditions the proximity induced on-dot pairing, combined… read more here.
Keywords: dynamical quantum; quantum phase; phase transitions; phase ... See more keywords
Quenching a quantum critical state by the order parameter: Dynamical quantum phase transitions and quantum speed limits
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.060504
Abstract: Quantum critical states exhibit strong quantum fluctuations and are therefore highly susceptible to perturbations. In this work we study the dynamical stability against a sudden coupling to these strong fluctuations by quenching the order parameter… read more here.
Keywords: quantum speed; quantum; dynamical quantum; quantum critical ... See more keywords
Dynamical quantum phase transitions in the quantum Potts chain
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.075143
Abstract: We analyze the dynamics of the return amplitude following a sudden quench in the three-state quantum Potts chain. For quenches crossing the quantum critical point from the paramagnetic to the ferromagnetic phase, the corresponding rate… read more here.
Keywords: phase; dynamical quantum; potts chain; potts ... See more keywords
Dynamical quantum phase transitions in Weyl semimetals
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.174311
Abstract: The quench dynamics in type-I inversion symmetric Weyl semimetals (WSM) are explored in this work which, due to the form of the Hamiltonian, may be readily extended to two-dimensional Chern insulators. We analyze the role… read more here.
Keywords: dynamical quantum; quantum phase; phase transitions; weyl semimetals ... See more keywords
Reconstructing the dynamical quantum phase transitions via dimensional expansion in a generalized Su-Schrieffer-Heeger model.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.106.014124
Abstract: We know that a one-dimensional (1D) modulated system can simulate 2D topological states by expanding the dimension. This scenario provides a justifiable avenue to test the dilatation of the dynamical quantum phase transition (DQPT). Through… read more here.
Keywords: schrieffer heeger; phase; dynamical quantum; model ... See more keywords