Parametric amplification of matter waves in dipolar spinor Bose-Einstein condensates
| Autor: | Frank Deuretzbacher, Wolfgang Ertmer, M. Scherer, Jan J. Arlt, O. Topic, G. Gebreyesus, Luis Santos, Bernd Lücke, Carsten Klempt |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Magnetic field gradient
Matter waves Alkali metals Amplification FOS: Physical sciences law.invention Parametric amplification law Quantum mechanics Dipolar interaction ddc:530 Steam condensers Spin-½ Physics Condensed Matter::Quantum Gases Spinor Bose-Einstein condensates Magnetic dipole-dipole interaction Atomic and Molecular Physics and Optics Magnetic field Dipole Alkali metal atoms Quantum Gases (cond-mat.quant-gas) Quantum electrodynamics Magnetic field effects Matter wave Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik Condensed Matter - Quantum Gases Magnetic dipole Statistical mechanics Bose–Einstein condensate Magnetic dipole–dipole interaction |
| Zdroj: | Deuretzbacher, F, Gebreyesus, G, Topic, O, Scherer, M, Lücke, B, Ertmer, W, Arlt, J, Klempt, C & Santos, L 2010, ' Parametric amplification of matter waves in dipolar spinor Bose-Einstein condensates ', Physical Review A, vol. 82, no. 5, pp. 053608 . https://doi.org/10.1103/PhysRevA.82.053608 Physical Review A 82 (2010), Nr. 5 |
| DOI: | 10.1103/PhysRevA.82.053608 |
| Popis: | Spin-changing collisions may lead under proper conditions to the parametric amplification of matter waves in spinor Bose-Einstein condensates. Magnetic dipole-dipole interactions, although typically very weak in alkalimetal atoms, are shown to play a very relevant role in the amplification process. We show that these interactions may lead to a strong dependence of the amplification dynamics on the angle between the trap axis and the magnetic-field orientation. We analyze as well the important role played by magnetic-field gradients, which also modify strongly the amplification process. Magnetic-field gradients, hence, must be carefully controlled in future experiments, in order to observe clearly the effects of the dipolar interactions in the amplification dynamics. © 2010 The American Physical Society. DFG/SFB/407 DFG/EXC/QUEST ESF/EuroQUASAR |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|