Phonon-Josephson resonances in atomtronic circuits
| Autor: | O. O. Prikhodko, Michael Weyrauch, Y. M. Bidasyuk |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Condensed matter physics Phonon Condensed Matter::Other FOS: Physical sciences 01 natural sciences 010305 fluids & plasmas Quantum Gases (cond-mat.quant-gas) Condensed Matter::Superconductivity 0103 physical sciences Quasiparticle Condensed Matter - Quantum Gases 010306 general physics Spectroscopy Excitation Quantum tunnelling Electronic circuit |
| DOI: | 10.48550/arxiv.1607.06590 |
| Popis: | We study the resonant excitation of sound modes from Josephson oscillations in Bose-Einstein condensates. From the simulations for various setups using the Gross-Pitaevskii mean-field equations and Josephson equations we observe additional tunneling currents induced by resonant phonons. The proposed experiment may be used for spectroscopy of phonons as well as other low-energy collective excitations in Bose-Einstein condensates. We also argue that the observed effect may mask the observation of Shapiro resonances if not carefully controlled. Comment: 8 pages, 11 figures. Updated to match the published version |
| Databáze: | OpenAIRE |
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