Proposal for the Creation and Optical Detection of Spin Cat States in Bose-Einstein Condensates

Autor:	Lau, Hon Wai, Dutton, Zachary, Wang, Tian, Simon, Christoph
Rok vydání:	2014
Předmět:	Quantum Physics Condensed Matter - Quantum Gases Physics - Atomic Physics
Zdroj:	Phys. Rev. Lett. 113, 090401 (2014)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.113.090401
Popis:	We propose a method to create "spin cat states", i.e. macroscopic superpositions of coherent spin states, in Bose-Einstein condensates using the Kerr nonlinearity due to atomic collisions. Based on a detailed study of atom loss, we conclude that cat sizes of hundreds of atoms should be realistic. The existence of the spin cat states can be demonstrated by optical readout. Our analysis also includes the effects of higher-order nonlinearities, atom number fluctuations, and limited readout efficiency. Comment: 5+12 pages, 3+10 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1404.1394 Zobrazit plný text záznamu View this record from Arxiv