Velocity of sound in a Bose-Einstein condensate in the presence of an optical lattice and transverse confinement

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optical Confinement of a Bose-Einstein Condensate

Bose-Einstein condensates of sodium atoms have been confined in an optical dipole trap using a single focused infrared laser beam. This eliminates the restrictions of magnetic traps for further studies of atom lasers and Bose-Einstein condensates. More than 5 3 106 condensed atoms were transferred into the optical trap. Densities of up to 3 3 1015 cm23 of Bose condensed atoms were obtained, all...

متن کامل

Collective excitations of a trapped Bose-Einstein condensate in the presence of a 1D optical lattice.

We study low-lying collective modes of an elongated 87Rb condensate produced in a 3D magnetic harmonic trap with the addition of a 1D periodic potential which is provided by a laser standing wave along the axial direction. While the transverse breathing mode remains unperturbed, quadrupole and dipole oscillations along the optical lattice are strongly modified. Precise measurements of the colle...

متن کامل

All-optical confinement of a Bose-Einstein condensate

Magnetic confinement of Bose-Einstein condensates is incompatible with many precision measurements and applications in atom optics. Therefore, we realized an optical trap for a Bose-Einstein condensate [1]. It uses a single, focused infrared laser beam of only a few milliwatts of laser power, which is sufficient due to the very low energy of Bose condensates. In this trap, we have observed high...

متن کامل

Superfluid properties of a Bose-Einstein condensate in an optical lattice confined in a cavity

We study the effect of a one dimensional optical lattice in a cavity field with quantum properties on the superfluid dynamics of a Bose-Einstein condensate(BEC). In the cavity the influence of atomic backaction and the external driving pump become important and modify the optical potential. Due to the coupling between the condensate wavefunction and the cavity modes, the cavity light field deve...

متن کامل

Stability of dark solitons in a Bose-Einstein condensate trapped in an optical lattice

P. G. Kevrekidis, R. Carretero-González, G. Theocharis, D. J. Frantzeskakis, and B. A. Malomed Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515, USA Nonlinear Dynamical Systems Group,* Department of Mathematics & Statistics, San Diego State University, San Diego, California 92182-7720, USA Department of Physics, University of Athens, Panep...

متن کامل

ذخیره 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: Journal of Low Temperature Physics

سال: 2005

ISSN: 0022-2291,1573-7357

DOI: 10.1007/s10909-005-2294-z