Listar Ciencias Exactas y Naturales por tema "Tunelamento"
Mostrando ítems 1-6 de 6
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Control of tunneling in an atomtronic switching device
(2018) [Artículo de periódico]The precise control of quantum systems will play a major role in the realization of atomtronic devices. As in the case of electronic systems, a desirable property is the ability to implement switching. Here we show how to ... -
Copper gettering at half the projected ion range induced by low-energy channeling He implantation into silicon
(2000) [Artículo de periódico]He1 ions were implanted at 40 keV into Si <100> channel direction at room temperature (RT) and at 350 °C. The Si samples were subsequently doped with Cu in order to study the gettering of Cu atoms at the defective layer. ... -
Coupled dynamics of interacting spin-1 bosons in a double-well potential
(2018) [Artículo de periódico]We present a detailed analysis of dynamical processes involving two or three particles in a double-well potential. Motivated by experimental realizations of such a system with optically trapped cold atoms, we focus on ... -
Ground states of spin-1 bosons in asymmetric double wells
(2015) [Artículo de periódico]In this work we investigate the different states of a system of spin-1 bosons in two potential wells connected by tunneling, with spin-dependent interaction. The model utilizes the well-known Bose-Hubbard Hamiltonian, ... -
Tunneling spectroscopy of few-monolayer NbSe2 in high magnetic fields : triplet superconductivity and Ising protection
(2022) [Artículo de periódico]In conventional Bardeen-Cooper-Schrieffer superconductors, Cooper pairs of electrons of opposite spin (i.e., singlet structure) form the ground state. Equal-spin triplet pairs (ESTPs), as in superfluid 3 He, are of great ... -
Two-site Bose-Hubbard model with nonlinear tunneling : classical and quantum analysis
(2017) [Artículo de periódico]The extended Bose-Hubbard model for a double-well potential with atom-pair tunneling is studied. Starting with a classical analysis we determine the existence of three quantum phases: self-trapping, phase-locking, and ...