Ja n 20 09 Atom chips and one - dimensional Bose gases
نویسندگان
چکیده
منابع مشابه
Atom chips and one-dimensional Bose gases
2 Regimes of 1D gases 2 2.1 Strongly versus weakly interacting regimes . . . . . . . . . . . . . . . . . . . . 4 2.2 Nearly ideal gas regime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Quasi-condensate regime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.1 Density fluctuations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.3.2 Phase fluc...
متن کاملJa n 20 05 Superfluid to Mott insulator transition in one , two , and three dimensions
We have created one-, two-, and three-dimensional quantum gases and study the superfluid to Mott insulator transition. Measurements of the transition using Bragg spectroscopy show that the excitation spectra of the low-dimensional superfluids differ significantly from the three-dimensional case. A low dimensional gas can be created in a trap when the confining potential restricts the motion of ...
متن کاملCombined chips for atom optics
We present experiments with Bose-Einstein condensates on a combined atom chip. The combined structure consists of a large-scale “carrier chip” and smaller “atom-optics chips,” containing micron-sized elements. This allows us to work with condensates very close to chip surfaces without suffering from fragmentation or losses due to thermally driven spin flips. Precise three-dimensional positionin...
متن کاملStatistical Physics ( PHY 831 ) , Part 2 - Exact results and solvable models
Systems that will be covered include:(10 lectures) Classical ideal gases, Non-interacting spin systems, Harmonic oscillators, Energy levels of a non-relativistic and relavistic particle in a box, ideal Bose and Fermi gases. One dimensional and infinite range ising models. Applications to atom traps, white dwarf and neutron stars, electrons in metals, photons and solar energy, phonons, Bose cond...
متن کامل