Spontaneous Macroscopic Spin Polarization in Independent Spinor Bose-Einstein Condensates

Autor:	Mark Henry Wheeler, Jessie D. Erwin, K. M. Mertes, David Hall
Rok vydání:	2004
Předmět:	Condensed Matter::Quantum Gases Physics Stern–Gerlach experiment Zeeman effect Spinor Spin polarization Condensed matter physics General Physics and Astronomy Polarization (waves) law.invention symbols.namesake law symbols Hyperfine structure Bose–Einstein condensate Spin-½
Zdroj:	Physical Review Letters. 93
ISSN:	1079-7114 0031-9007
Popis:	We present experimental evidence for the spontaneous formation of a macroscopic spin polarization in overlapping regions of two independent Bose-Einstein condensates produced in different hyperfine states of $^{87}\mathrm{R}\mathrm{b}$. The condensates are independent in the sense that we do not explicitly introduce a relative phase between them. A single ``spin-tip'' pulse maps the transverse spin polarization into longitudinal spin polarization, and the atomic density distributions are measured with a Stern-Gerlach imaging method. The resulting matter-wave interference patterns are anticorrelated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c26e8983988cf56817506c7b39de786 https://doi.org/10.1103/physrevlett.93.170402 Zobrazit plný text záznamu