Autor:	McGuirk, J. M., Zajiczek, L. F.
Rok vydání:	2010
Předmět:	Condensed Matter - Quantum Gases Physics - Atomic Physics
Zdroj:	New J. of Phys. 12, 103020 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1088/1367-2630/12/10/103020
Popis:	We demonstrate a technique for exciting spin waves in an ultracold gas of Rb-87 atoms based on tunable AC Stark potentials. This technique allows us to excite normal modes of spin waves with arbitrary amplitudes in the trapped gas, including dipole, quadrupole, octupole, and hexadecapole modes. These modes exhibit strong nonlinearities, which manifest as amplitude dependence of the excitation frequencies and departure from sinusoidal behavior. Our results are in good agreement with a full treatment of a quantum Boltzmann transport equation. Comment: 11 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1007.4339 Zobrazit plný text záznamu View this record from Arxiv