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Chiral-mediated entanglement in an Aharonov-Bohm ring
(American Physical Society, 2012-01)
We study the orbital entanglement in a biased Aharonov-Bohm ring connected in a four-terminal setup. We find that the concurrence achieves a maximum when the magnetic flux Φ B coincides with an integer number of a half ...
In-plane mapping of buried InGaAs quantum rings and hybridization effects on the electronic structure
(AMER INST PHYSICSMELVILLE, 2012)
This work reports the investigation on the structural differences between InAs quantum rings and their precursor quantum dots species as well as on the presence of piezoelectric fields and asymmetries in these nanostructures. ...
Artificial molecular quantum rings under magnetic field influence
(AMER INST PHYSICS, 2009)
The ground states of a few electrons confined in two vertically coupled quantum rings in the presence of an external magnetic field are studied systematically within the current spin-density functional theory. Electron-electron ...
Linear and nonlinear transport in a small charge-tunable open quantum ring
(AMER PHYSICAL SOC, 2011)
We experimentally study the Aharonov-Bohm-conductance oscillations under external gate voltage in a semiconductor quantum ring with a radius of 80 nm. We find that, in the linear regime, the resistance-oscillation plot in ...
Álgebras cuánticas de potencias divididas
(2016-03)
Se definen las álgebras de Lusztig y sus dobles de Drinfeld, las cuánticas de potencias divididas, asociadas a álgebras de Nichols de tipo diagonal de dimensión finita.
En ambos casos se prueba una presentación por ...
Estrutura eletrônica de anéis quânticos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2011-08-09)
The nanoscopic structures with ring topology, or quantum rings, have attracted the interest due to their unique rotational symmetry and the possibility of checking fundamental quantum phenomena. Among them, the study of ...
Effect of an electric field on the bohm-aharonov oscillations in the electronic spectrum of a quantum ring
(AMERICAN PHYSICAL SOCIETY, 2002)