Quantum dynamics with spatiotemporal control of interactions in a stable Bose-Einstein condensate

Autor:	Clark, Logan W., Ha, Li-Chung, Xu, Chen-Yu, Chin, Cheng
Rok vydání:	2015
Předmět:	Condensed Matter - Quantum Gases
Zdroj:	Phys. Rev. Lett. 115, 155301 (2015)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.115.155301
Popis:	Optical control of atomic interactions in a quantum gas is a long-sought goal of cold atom research. Previous experiments have been hindered by short lifetimes and parasitic deformation of the trap potential. Here, we develop and implement a generic scheme for optical control of Feshbach resonance in quantum gases, which yields long condensate lifetimes sufficient to study equilibrium and non-equilibrium physics with negligible parasitic dipole force. We show that fast and local control of interactions leads to intriguing quantum dynamics in new regimes, highlighted by the formation of van der Waals molecules and partial collapse of a Bose condensate. Comment: 9 pages, 8 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1506.01766 Zobrazit plný text záznamu View this record from Arxiv