Please use this identifier to cite or link to this item:
|Title:||Breathing oscillations of a trapped impurity in a Bose gas|
|Citation:||Johnson, T.H., Bruderer, M., Cai, Y., Clark, S.R., Bao, W., Jaksch, D. (2012-04). Breathing oscillations of a trapped impurity in a Bose gas. EPL 98 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1209/0295-5075/98/26001|
|Abstract:||Motivated by a recent experiment (Catani J. et al., Phys. Rev. A, 85 (2012) 023623) we study breathing oscillations in the width of a harmonically trapped impurity interacting with a separately trapped Bose gas. We provide an intuitive physical picture of such dynamics at zero temperature, using a time-dependent variational approach. The amplitudes of breathing oscillations are suppressed by self-trapping, due to interactions with the Bose gas. Further, exciting phonons in the Bose gas leads to damped oscillations and non-Markovian dynamics of the width of the impurity, the degree of which can be engineered through controllable parameters. Our results, supported by simulations, reproduce the main features of the dynamics observed by Catani et al. despite the temperature of that experiment. Moreover, we predict novel effects at lower temperatures due to self-trapping and the inhomogeneity of the trapped Bose gas. © Europhysics Letters Association 2012.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 15, 2019
WEB OF SCIENCETM
checked on Jan 7, 2019
checked on Jan 11, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.