Critical velocity in cylindrical Bose-Einstein condensates
نویسندگان
چکیده
منابع مشابه
Boolean Bose-einstein Condensates Bose-einstein Condensates
Burris, Stanley. ‘‘George Boole.’’ In The Stanford Encyclopedia of Philosophy, edited by Edward N. Zalta. 2010. Available from http://plato.stanford.edu/archives/sum2010/entries/boole/ Krantz, Steven G. Discrete Mathematics Demystified. New York: McGraw-Hill, 2009. Nahin, Paul J. The Logician and the Engineer: How George Boole and Claude Shannon Created the Information Age. Princeton, NJ: Princ...
متن کاملVisualizing Bose-Einstein condensates
" atom lasers " formed from traveling BECs. They also behave similarly to superfluids, much like liquid helium or superconductors. By studying BECs, we've gained important insights into much more complicated, but closely related, systems. BECs created from dilute alkali vapors were first produced in the laboratory in 1995 1–4 using laser cooling and trapping techniques developed over the past 2...
متن کاملLow velocity quantum reflection of Bose-Einstein condensates.
We study how interactions affect the quantum reflection of Bose-Einstein condensates. A patterned silicon surface with a square array of pillars resulted in high reflection probabilities. For incident velocities greater than 2.5 mm/s, our observations agreed with single-particle theory. At velocities below 2.5 mm/s, the measured reflection probability saturated near 60% rather than increasing t...
متن کاملSolitons in Bose–Einstein condensates
The Gross–Pitaevskii equation (GPE) describing the evolution of the Bose–Einstein condensate (BEC) order parameter for weakly interacting bosons supports dark solitons for repulsive interactions and bright solitons for attractive interactions. After a brief introduction to BEC and a general review of GPE solitons, we present our results on solitons that arise in the BEC of hard-core bosons, whi...
متن کاملBose-Einstein Condensates in Superlattices
We consider the Gross–Pitaevskii (GP) equation in the presence of periodic and quasi-periodic superlattices to study cigar-shaped Bose–Einstein condensates (BECs) in such potentials. We examine spatially extended wavefunctions in the form of modulated amplitude waves (MAWs). With a coherent structure ansatz, we derive amplitude equations describing the evolution of spatially modulated states of...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2001
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.63.045601