Collective excitations and tunneling dynamics in long bosonic Josephson junctions
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DOI: 10.1103/physreva.100.033601
Abstract: We investigate the low-energy dynamics of two coupled anisotropic Bose-Einstein condensates forming a long Josephson junction. The theoretical study is performed in the framework of the two-dimensional Gross-Pitaevskii equation and the Bogoliubov-de Gennes formalism. We… read more here.
Keywords: dynamics long; long bosonic; excitations tunneling; collective excitations ... See more keywords
Electron tunneling dynamics between two-dimensional and zero-dimensional quantum systems: Contributions of momentum matching, higher subbands, and phonon-assisted processes
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DOI: 10.1103/physrevb.102.035413
Abstract: We investigate tunneling dynamics of electrons from an ensemble of self-assembled InAs quantum dots into the subbands of a two-dimensional electron gas (2DEG). LO-phonon-assisted tunneling processes and tunneling into higher subbands of the 2DEG electronic… read more here.
Keywords: quantum; higher subbands; two dimensional; phonon assisted ... See more keywords