Collective Excitations of Bose-Einstein Condensates in a Double-Well Potential
Ippei Danshita, Kyota Egawa, Nobuhiko Yokoshi, Susumu Kurihara
Abstract
We investigate collective excitations of Bose-Einstein condensates at absolute zero in a double-well trap. We solve the Bogoliubov equations with a double-well trap, and show that the crossover from the dipole mode to the Josephson plasma mode occurs in the lowest energy excitation. It is found that the anomalous tunneling property of low energy excitations is crucial to the crossover.
Create a lesson
Related papers
Ultrafast laser-stimulated field emission from a metal: a non-equilibrium Green's functions approach
Luciano Jacopo D'Onofrio, Adolfo Avella, Martin Eckstein
Three-dimensional dopant distribution from a single, out-of-focus spectroscopic image
Michael Deimetry, Timothy Petersen, Matthew Weyland et al.
A nonclassical law of the wall in superfluid helium-4
Mikai Hulse, Musfequs Salehin, Sosuke Inui et al.
Progress and Prospect of AI in ARPES Workflow
Sandy Adhitia Ekahana, Aalok Tiwari, Pratik Saud et al.
Magnon Polarization Textures and Transport in Antiferromagnets and Altermagnets
Konstantin S. Denisov, Igor Žutić
PT-symmetry as Effective Time Reversal Symmetry for Anderson Localization in a Collinear Antiferromagnet
Kim-Khuong Huynh, Takuma Ogasawara, Motoi Kimata et al.