Buscar
Mostrando ítems 1-10 de 3849
TUNNELING LIFETIME BROADENING ON QUANTUM WELL IN AN ELECTRIC FIELD
(Solid State Communications, 2013-01-16)
Tunneling in quantum wells in the presence of an electric field
(Revista Mexicana de Fisica, 2013-01-16)
Effect of giant electric fields on the optical properties of GaN quantum wells
(Revista Mexicana de Fisica, 2013-01-16)
Enhancement of quantum speed limit time due to cooperative effects in multilevel systems
(IOP Publishing, 2015-08)
Deriving minimum evolution times is of paramount importance in quantum mechanics. Bounds on the speed of evolution are given by the so called quantum speed limit (QSL). In this work we use quantum optimal control methods ...
Quantum decoration transformation for spin models
(Elsevier, 2019)
Selective and efficient quantum state tomography and its application to quantum process tomography
(American Physical Society, 2013-01-18)
We present a method for quantum state tomography that enables the efficient estimation, with fixed precision, of any of the matrix elements of the density matrix of a state, provided that the states from the basis in which ...
Generalized approach to quantify correlations in bipartite quantum systems
(Springer, 2019-02)
In this work, we developed a general approach to the problem of detecting and quantifying different types of correlations in bipartite quantum systems. Our method is based on the use of distances between quantum states and ...
Optimal quantum control applied to quantum dots
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2019-10-03)
In the present study, we review the one-qubit dynamics and we offer a new unifying interpretation of the Landau-Zenner and the Rabi dynamics, by indicating the physical elements responsible for the manifestation of one ...
Spontaneous spin polatization in doped semiconductor quantum wells
(Springer, 2005-12)
We calculate the critical density of the zero-temperature, first-order ferromagnetic phase transition in n-doped GaAs/AlGaAs quantum wells. We predict that this transition could be observed in narrow quantum wells at ...