Ground state and excited states of a confined condensed Bose gas
Ground state and excited states of a confined condensed Bose gas
The Bogoliubov approximation is used to study the ground state and low-lying excited states of a dilute gas of $N$ atomic bosons held in an isotropic harmonic potential characterized by frequency $\omega$ and oscillator length $d_0$. By assumption, the self-consistent condensate has a macroscopic occupation number $N_0 >> 1$, with …