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Dynamical phase transitions and Loschmidt echo in the infinite-range XY model
(Royal Soc, 2016)
We compare two different notions of dynamical phase transitions in closed quantum systems. The first is identified through the time-averaged value of the equilibrium-order parameter, whereas the second corresponds to ...
Dynamic transition in Landau-Zener-Stückelberg interferometry of dissipative systems: the case of the flux qubit
(American Physical Society, 2016-02)
We study Landau-Zener-Stückelberg (LZS) interferometry in multilevel systems coupled to an Ohmic quantum bath. We consider the case of superconducting flux qubits driven by a dc+ac magnetic fields, but our results can apply ...
Langevin dynamics of the deconfinement transition for pure gauge theory
(Sociedade Brasileira de Física, 2007-07-01)
We investigate the effects of dissipation in the deconfinement transition for pure SU(2) and SU(3) gauge theories. Using an effective theory for the order parameter, we study its Langevin evolution numerically. Noise effects ...
Langevin dynamics of the deconfinement transition for pure gauge theory
(Sociedade Brasileira de Física, 2007-07-01)
We investigate the effects of dissipation in the deconfinement transition for pure SU(2) and SU(3) gauge theories. Using an effective theory for the order parameter, we study its Langevin evolution numerically. Noise effects ...
Langevin dynamics of the deconfinement transition for pure gauge theory
(Sociedade Brasileira de Física, 2013)
AC dynamic reorganization and critical phase transitions in superconducting vortex matter
(IOP Publishing, 2020-11-24)
Vortex matter in type-II superconductors is a model complex system belonging to the vast ensemble of disordered elastic media. In all these systems, depinning occurs when an external drive is increased beyond a critical ...
A structural study and its relation to dynamic heterogeneity in a polymer glass former
(Royal Society of Chemistry, 2021-02)
The relationship between structure and dynamical behavior (super-Arrhenius temperature dependence of relaxation time accompanied by heterogeneous dynamics) in glassy materials remains an open issue in the physics of condensed ...
Non-local effects at the onset of the chiral transition
(Sociedade Brasileira de Física, 2007-07-01)
Inspired by analytic results obtained for a systematic expansion of the memory kernel in dissipative quantum mechanics, we propose a phenomenological procedure to incorporate non-markovian corrections to the Langevin ...
Non-local effects at the onset of the chiral transition
(Sociedade Brasileira de Física, 2007-07-01)
Inspired by analytic results obtained for a systematic expansion of the memory kernel in dissipative quantum mechanics, we propose a phenomenological procedure to incorporate non-markovian corrections to the Langevin ...