Self-bound ultradilute Bose mixtures within local density approximation

Critical Temperature of a Trapped Interacting Bose Gas in the Local Density Approximation

The Bose gas in an external potential is studied by means of the local density approximation. An analytical result is derived for the dependence of the critical temperature of Bose-Einstein condensation on the mutual interaction in a generic power-law potential. PACS numbers: 03.75.Fi, 32.80.Pj In an ideal Bose-Einstein gas, the zero momentum state can become macroscopically occupied, and the s...

Generalized Local Density Approximation Uniform Electron Gases . II . The Generalized Local Density Approximation in One Dimension

We introduce a generalization (gLDA) of the traditional Local Density Approximation (LDA) within density functional theory. The gLDA uses both the one-electron Seitz radius rs and a two-electron hole curvature parameter η at each point in space. The gLDA reduces to the LDA when applied to the infinite homogeneous electron gas but, unlike the LDA, is is also exact for finite uniform electron gas...

Variational polaron method for Bose-Bose mixtures

Alkali Bose Condensate Mixtures

We show that binary mixtures of Bose-condensates of alkali atoms have a great variety of ground state and vortex structures which can be accessed experimentally by varying the particle numbers of different alkalis. We have constructed a simple algorithm to determine the density profiles of these states, and have worked out their phase diagrams within Thomas-Fermi approximation. Many structures ...

Fermi-Bose and Bose-Bose K-Rb Quantum Degenerate Mixtures

We describe the properties of mixtures composed by potassium and rubidium atoms, simultaneously trapped in a magnetic potential. Potassium isotopes are cooled down to quantum degeneracy by means of sympathetic cooling with rubidium [1]. We can produce both a two-species Bose-Einstein condensate [2] mixing together Rb and K, and a degenerate system composed by a Fermi gas of K atoms and a Bose-E...