Search Results - "Balázs, Dóra"

Detecting Equilibrium and Dynamical Quantum Phase Transitions in Ising Chains via Out-of-Time-Ordered Correlators by Heyl, Markus, Pollmann, Frank, Dóra, Balázs

“…Out-of-time-ordered (OTO) correlators have developed into a central concept quantifying quantum information transport, information scrambling, and quantum…”
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The Kibble-Zurek mechanism at exceptional points by Dóra, Balázs, Heyl, Markus, Moessner, Roderich

“…Exceptional points (EPs) are ubiquitous in non-Hermitian systems, and represent the complex counterpart of critical points. By driving a system through a…”
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Floquet topological insulators by Cayssol, Jérôme, Dóra, Balázs, Simon, Ferenc, Moessner, Roderich

“…Topological insulators represent unique phases of matter with insulating bulk and conducting edge or surface states, immune to small perturbations such as…”
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Lattice generalization of the Dirac equation to general spin and the role of the flat band by Dóra, Balázs, Kailasvuori, Janik, Moessner, R.

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Optically engineering the topological properties of a spin Hall insulator by Dóra, Balázs, Cayssol, Jérôme, Simon, Ferenc, Moessner, Roderich

“…Time-periodic perturbations can be used to engineer topological properties of matter by altering the Floquet band structure. This is demonstrated for the…”
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Topological classification of dynamical phase transitions by Vajna, Szabolcs, Dóra, Balázs

“…We study the nonequilibrium time evolution of a variety of one-dimensional (1D) and two-dimensional (2D) systems (including SSH model, Kitaev-chain, Haldane…”
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Quantum Quench in PT-Symmetric Luttinger Liquid by Dóra, Balázs, Moca, Cătălin Paşcu

“…A Luttinger liquid (LL) describes low energy excitations of many interacting one dimensional systems, and exhibits universal response both in and out of…”
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Correlations at PT-Symmetric Quantum Critical Point by Dóra, Balázs, Sticlet, Doru, Moca, Cătălin Paşcu

“…We consider a PT-symmetric Fermi gas with an exceptional point, representing the critical point between PT-symmetric and symmetry broken phases. The low energy…”
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Kubo Formula for Non-Hermitian Systems and Tachyon Optical Conductivity by Sticlet, Doru, Dóra, Balázs, Moca, Cătălin Paşcu

“…Linear response theory plays a prominent role in various fields of physics and provides us with extensive information about the thermodynamics and dynamics of…”
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Kibble–Zurek scaling due to environment temperature quench in the transverse field Ising model by Bácsi, Ádám, Dóra, Balázs

“…The Kibble–Zurek mechanism describes defect production due to non-adiabatic passage through a critical point. Here we study its variant from ramping the…”
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Out-of-Time-Ordered Density Correlators in Luttinger Liquids by Dóra, Balázs, Moessner, Roderich

“…Information scrambling and the butterfly effect in chaotic quantum systems can be diagnosed by out-of-time-ordered (OTO) commutators through an exponential…”
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Dissipation-Induced Luttinger Liquid Correlations in a One-Dimensional Fermi Gas by Bácsi, Ádám, Moca, Cătălin Paşcu, Dóra, Balázs

“…We study a one-dimensional Fermi gas in the presence of dissipative coupling to environment through the Lindblad equation. The dissipation involves energy…”
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Disentangling dynamical phase transitions from equilibrium phase transitions by Vajna, Szabolcs, Dóra, Balázs

“…Dynamical phase transitions (DPTs) occur after quenching some global parameters in quantum systems, and are signalled by the nonanalytical time evolution of…”
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Loschmidt echo and the many-body orthogonality catastrophe in a qubit-coupled Luttinger liquid by Dóra, Balázs, Pollmann, Frank, Fortágh, József, Zaránd, Gergely

“…We investigate the many-body generalization of the orthogonality catastrophe by studying the generalized Loschmidt echo of Luttinger liquids (LLs) after a…”
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From Floquet to Dicke: Quantum Spin Hall Insulator Interacting with Quantum Light by Gulácsi, Balázs, Dóra, Balázs

“…Time-periodic perturbations due to classical electromagnetic fields are useful to engineer the topological properties of matter using the Floquet theory. Here…”
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Entropy in Spin Relaxation, Spintronics, and Magnetic Resonance by Csősz, Gábor, Dóra, Balázs, Simon, Ferenc

“…The entropy change during spin relaxation for a realistic model system is studied, whose spin dynamics can be handled with the Boltzmann equation. The time…”
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Momentum-Space Entanglement and Loschmidt Echo in Luttinger Liquids after a Quantum Quench by Dóra, Balázs, Lundgren, Rex, Selover, Mark, Pollmann, Frank

“…Luttinger liquids (LLs) arise by coupling left- and right-moving particles through interactions in one dimension. This most natural partitioning of LLs is…”
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Absence of Orthogonality Catastrophe after a Spatially Inhomogeneous Interaction Quench in Luttinger Liquids by Dóra, Balázs, Pollmann, Frank

“…We investigate the Loschmidt echo, the overlap of the initial and final wave functions of Luttinger liquids after a spatially inhomogeneous interaction quench…”
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Crossover from adiabatic to sudden interaction quench in a Luttinger liquid by Dóra, Balázs, Haque, Masudul, Zaránd, Gergely

“…Motivated by recent experiments on interacting cold atoms, we analyze interaction quenches in Luttinger liquids (LLs), where the interaction is ramped from…”
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Persistent currents in Dirac fermion rings by Sticlet, Doru, Dóra, Balázs, Cayssol, Jérôme

“…The persistent current in strictly one-dimensional Dirac systems is investigated within two different models, defined in the continuum and on a lattice,…”
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