Bogoliubov theory of acoustic Hawking radiation in Bose-Einstein condensates Export

@article{citeulike:6047400, abstract = {We apply the microscopic Bogoliubov theory of dilute Bose-Einstein condensates to analyze quantum and thermal fluctuations in a flowing atomic condensate in the presence of a sonic horizon. For the simplest case of a step-like horizon, closed-form analytical expressions are found for the spectral distribution of the analog Hawking radiation and for the density correlation function. The peculiar long-distance density correlations that appear as a consequence of the Hawking emission features turns out to be reinforced by a finite initial temperature of the condensate. The analytical results are in good quantitative agreement with first principle numerical calculations.}, author = {Recati, A. and Pavloff, N. and Carusotto, I.}, citeulike-article-id = {6047400}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000080000004043603000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRA/v80/e043603}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevA.80.043603}, day = {7}, doi = {10.1103/PhysRevA.80.043603}, journal = {Physical Review A (Atomic, Molecular, and Optical Physics)}, keywords = {acoustic, analytic, bec, bogoliubov, bose-einstein, condensate, hawking, model, radiation}, month = {October}, number = {4}, pages = {043603+}, posted-at = {2009-10-31 07:31:24}, priority = {2}, publisher = {APS}, title = {Bogoliubov theory of acoustic Hawking radiation in Bose-Einstein condensates}, url = {http://dx.doi.org/10.1103/PhysRevA.80.043603}, volume = {80}, year = {2009} }

TY - JOUR ID - citeulike:6047400 L3 - citeulike-article-id:6047400 N2 - We apply the microscopic Bogoliubov theory of dilute Bose-Einstein condensates to analyze quantum and thermal fluctuations in a flowing atomic condensate in the presence of a sonic horizon. For the simplest case of a step-like horizon, closed-form analytical expressions are found for the spectral distribution of the analog Hawking radiation and for the density correlation function. The peculiar long-distance density correlations that appear as a consequence of the Hawking emission features turns out to be reinforced by a finite initial temperature of the condensate. The analytical results are in good quantitative agreement with first principle numerical calculations. IS - 4 JF - Physical Review A (Atomic, Molecular, and Optical Physics) TI - Bogoliubov theory of acoustic Hawking radiation in Bose-Einstein condensates PB - APS VL - 80 SP - 043603 KW - acoustic KW - analytic KW - bec KW - bogoliubov KW - bose-einstein KW - condensate KW - hawking KW - model KW - radiation AU - Recati, A AU - Pavloff, N AU - Carusotto, I PY - 2009/10/07/ UR - http://dx.doi.org/10.1103/PhysRevA.80.043603 ER -