Two-dimensional weakly interacting Bose gas: equation of state Export

@article{citeulike:3816833, abstract = {The equation of state of a weakly interacting two-dimensional Bose gas is studied at zero temperature by means of quantum Monte Carlo methods. Going down to as low densities as na^2 \~{} 10^{-67} permits us for the first time to obtain agreement on beyond mean-field level between predictions of perturbative methods and direct many-body numerical simulation, thus providing an answer to the fundamental question of the equation of state of a two-dimensional dilute Bose gas. We also show that the measure of the frequency of a breathing collective oscillation in a trap at very low densities can be used to test the universal equation of state of a two-dimensional Bose gas.}, archivePrefix = {arXiv}, author = {Astrakharchik, G. E. and Boronat, J. and Casulleras, J. and Kurbakov, I. L. and Yu}, citeulike-article-id = {3816833}, citeulike-linkout-0 = {http://arxiv.org/abs/0812.3844}, citeulike-linkout-1 = {http://arxiv.org/pdf/0812.3844}, eprint = {0812.3844}, keywords = {bose}, month = {Dec}, posted-at = {2008-12-22 10:45:43}, priority = {3}, title = {Two-dimensional weakly interacting Bose gas: equation of state}, url = {http://arxiv.org/abs/0812.3844}, year = {2008} }

TY - JOUR ID - citeulike:3816833 L3 - citeulike-article-id:3816833 N2 - The equation of state of a weakly interacting two-dimensional Bose gas is studied at zero temperature by means of quantum Monte Carlo methods. Going down to as low densities as na^2 ~ 10^{-67} permits us for the first time to obtain agreement on beyond mean-field level between predictions of perturbative methods and direct many-body numerical simulation, thus providing an answer to the fundamental question of the equation of state of a two-dimensional dilute Bose gas. We also show that the measure of the frequency of a breathing collective oscillation in a trap at very low densities can be used to test the universal equation of state of a two-dimensional Bose gas. TI - Two-dimensional weakly interacting Bose gas: equation of state KW - bose AU - Astrakharchik, GE AU - Boronat, J AU - Casulleras, J AU - Kurbakov, IL AU - Yu PY - 2008/Dec/19/ UR - http://arxiv.org/abs/0812.3844 ER -