Manipulation of an elongated internal Josephson junction of bosonic atoms
| Autor: | A. Zenesini, R. Cominotti, Giacomo Lamporesi, Dimitris Trypogeorgos, Alessio Recati, A. Farolfi, Gabriele Ferrari |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Josephson effect
internal Josephson junction Atomic Physics (physics.atom-ph) Bose-Einstein condensation Josephson junction elongated junction spinor gas internal Josephson junction FOS: Physical sciences Bose-Einstein condensation elongated junction 01 natural sciences 010305 fluids & plasmas Physics - Atomic Physics Magnetization spinor gas Josephson junction Condensed Matter::Superconductivity 0103 physical sciences BEC mixtures 010306 general physics Spin-½ Physics Condensed Matter::Quantum Gases Condensed matter physics Characterization (materials science) Nonlinear system Transverse plane Quantum Gases (cond-mat.quant-gas) Inhomogeneous spin systems Local-density approximation Condensed Matter - Quantum Gases |
| Zdroj: | Physical review. A (Online) 104 (2021): 023326-01–023326-07. doi:10.1103/PhysRevA.104.023326 info:cnr-pdr/source/autori:Farolfi, A.; Zenesini, A.; Cominotti, R.; Trypogeorgos, D.; Recati, A.; Lamporesi, G.; Ferrari, G./titolo:Manipulation of an elongated internal Josephson junction of bosonic atoms/doi:10.1103%2FPhysRevA.104.023326/rivista:Physical review. A (Online)/anno:2021/pagina_da:023326-01/pagina_a:023326-07/intervallo_pagine:023326-01–023326-07/volume:104 |
| DOI: | 10.1103/PhysRevA.104.023326 |
| Popis: | We report on the experimental characterization of a spatially extended Josephson junction realized with a coherently-coupled two-spin-component Bose-Einstein condensate. The cloud is trapped in an elongated potential such that that transverse spin excitations are frozen. We extract the non-linear parameter with three different manipulation protocols. The outcomes are all consistent with a simple local density approximation of the spin hydrodynamics, i.e., of the so-called Bose-Josephson junction equations. We also identify a method to produce states with a well defined uniform magnetization. 8 pages, 4 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|