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Quantum Ferroelectric Instabilities in Superconducting SrTiO3
(2018)
We examine the effects of strain and cation substitution on the superconducting phase of polar semiconductors near a ferroelectric quantum phase transition with a
model that combines a strong coupling theory of ...
Quantum ferroelectric instabilities in superconducting SrTiO3
(2018)
We examine the effects of strain and cation substitution on the superconducting phase of polar semiconductors near a ferroelectric quantum phase transition with a
model that combines a strong coupling theory of ...
Quantum Discord and Information Deficit in Spin Chains
(Molecular Diversity Preservation International, 2015-03)
We examine the behavior of quantum correlations of spin pairs in a finite anisotropic XY spin chain immersed in a transverse magnetic field, through the analysis of the quantum discord and the conventional and quadratic ...
Dissipative majorana quantum wires
(Elsevier, 2019-11)
In this paper, we formulate and quantitatively examine the effect of dissipation on topological systems. We use a specific model of Kitaev quantum wire with an onsite Ohmic dissipation and perform a numerically exact method ...
Criticality of environmental information obtainable by dynamically controlled quantum probes
(American Physical Society, 2016-10-21)
A universal approach to decoherence control combined with quantum estimation theory reveals a critical behavior, akin to a phase transition, of the information obtainable by a qubit probe concerning the memory time of ...
Unconventional critical activated scaling of two-dimensional quantum spin glasses
(American Physical Society, 2016-07)
We study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse ...
Pressure study of nematicity and quantum criticality in Sr3Ru2O7 for an in-plane field
(American Physical Society, 2013-09)
We study the relationship between the nematic phases of Sr3Ru2O7 and quantum criticality. At ambient pressure, one nematic phase is associated with a metamagnetic quantum critical end point (QCEP) when the applied magnetic ...
Geometric phase with nonunitary evolution in the presence of a quantum critical bath
(American Physical Society, 2010-12)
Geometric phases, arising from cyclic evolutions in a curved parameter space, appear in a wealth of physical settings. Recently, and largely motivated by the need of an experimentally realistic definition for quantum ...
Universal behavior of the Shannon mutual information of critical quantum chains
(American Physical Society - APSCollege Park, 2013-07)
We consider the Shannon mutual information of subsystems of critical quantum chains in their ground states. Our results indicate a universal leading behavior for large subsystem sizes. Moreover, as happens with the ...
Precise determination of quantum critical points by the violation of the entropic area law
(AMER PHYSICAL SOC, 2011)
Finite-size scaling analysis turns out to be a powerful tool to calculate the phase diagram as well as the critical properties of two-dimensional classical statistical mechanics models and quantum Hamiltonians in one ...