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Thermalization in systems with bipartite eigenmode entanglement
(IOP Publishing, 2012-07)
It is analytically shown that the asymptotic correlations following a quantum quench in exactly solvable models can sometimes look essentially thermal provided the initial coupling between the system eigenmodes induces a ...
Rounding of a first-order quantum phase transition to a strong-coupling critical point
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
We investigate the effects of quenched disorder on first-order quantum phase transitions on the example of the N-color quantum Ashkin-Teller model. By means of a strong-disorder renormalization group, we demonstrate that ...
Re-evaluation of the steady-state self-quenching constant of quinine bisulphate from fluorescence measurements in transmission geometry
(IOP Publishing Ltd, 2017-09)
In the present work we show that a recent methodology developed by us to acquire emission spectra and fluorescence quantum yields of highly absorbing samples in transmission configuration, constitutes a very simple and ...
Criticality and quenched disorder: Harris criterion versus rare regions
(American Physical Society - APSCollege Park, 2014-02)
We employ scaling arguments and optimal fluctuation theory to establish a general relation between quantum Griffiths singularities and the Harris criterion for quantum phase transitions in disordered systems. If a clean ...
Luminescence Enhancement of Carboxyl-Coated CdTe Quantum Dots by Silver Nanoparticles
(2013-06-01)
Metallic nanoparticles (NPs) have been used to improve the sensibility of biosensors and bioassays either by enhancing radiative emission or inducing quenching process on fluorescent probes. The aim of this research was ...
Singlet oxygen production by a crude oil from the San Jorge Gulf Basin, Argentina
(Wiley Blackwell Publishing, Inc, 2018-11)
The quantum yields for singlet oxygen production by diluted solutions of an Argentine crude oil and its SARA (saturates, aromatics, resins and asphaltenes) fractions were obtained by direct detection of the characteristic ...
Quenching of the exciton-spin relaxation via exchange interaction in GaAs/AlxGa1-xAs quantum wells
(American Physical SocCollege PkEUA, 2002)
Quantum-to-classical transition in the work distribution for chaotic systems
(American Physical Society, 2017-05-12)
The work distribution is a fundamental quantity in nonequilibrium thermodynamics mainly due to its connection with fluctuation theorems. Here, we develop a semiclassical approximation to the work distribution for a quench ...