title = {{N} -conserving {B}ogoliubov vacuum of a two-component {B}ose–{E}instein condensate: density fluctuations close to a phase-separation condition},
url = {http://stacks.iop.org/1751-8121/41/i=14/a=145005},
timestamp = {2013.10.28},
journal = {Journal of Physics A: Mathematical and Theoretical},
author = {Bart\l{}omiej Ole\'{s} and Krzysztof Sacha},
volume = {41},
year = {2008},
owner = {lacek},
pages = {145005},
number = {14},
abstract = {Two-component Bose–Einstein condensates are considered within a number conserving version of the Bogoliubov theory. We show that the Bogoliubov vacuum state can be obtained in the particle representation in a simple form. We predict considerable density fluctuations in finite systems close to the phase-separation regime. We analyze homogeneous condensates and condensates in a double-well potential.}