Pulsed Quantum Tunneling with Matter Waves
| dc.creator | Salasnich, Luca | |
| dc.date | 2001-06-24 | |
| dc.date.accessioned | 2026-07-07T02:41:53Z | |
| dc.date.available | 2026-07-07T02:41:53Z | |
| dc.description | In this report we investigate the macroscopic quantum tunneling of a Bose condensate falling under gravity and scattering on a Gaussian barrier that could model a mirror of far-detuned sheet of light. We analyze the effect of the inter-atomic interaction and that of a transverse confining potential. We show that the quantum tunneling can be quasi-periodic and in this way one could generate coherent Bose condensed atomic pulses. In the second part of the report, we discuss an effective 1D time-dependent non-polynomial nonlinear Schrodinger equation (NPSE), which describes cigar-shaped condensates. NPSE is obtained from the 3D Gross-Pitaevskii equation by using a variational approach. We find that NPSE gives much more accurate results than all other effective 1D equations recently proposed. | |
| dc.description | 9 pages, 5 figures, report for the X International Laser Physics Workshop, Seminar on Bose-Einstein Condensation of Trapped Atoms, Moscow, July 3-7, 2001 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0106493 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0106493 | |
| dc.identifier | Laser Physics 12, 198-202 (2002) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/17925 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Statistical Mechanics | |
| dc.title | Pulsed Quantum Tunneling with Matter Waves | |
| dc.type | text |