3 papers
cond-mat.quant-gas2012
Precision measurements of s-wave scattering lengths in a two-component Bose-Einstein condensate
M. Egorov, B. Opanchuk, P. Drummond +3
We use collective oscillations of a two-component Bose-Einstein condensate (2CBEC) of \Rb atoms prepared in the internal states and $\ket{2}\equiv\…
cond-mat.quant-gas2011
Quantum noise in three-dimensional BEC interferometry
B. Opanchuk, M. Egorov, S. Hoffmann +2
We develop a theory of quantum fluctuations and squeezing in a three-dimensional Bose-Einstein condensate atom interferometer with nonlinear losses. We use stochastic equations in…
cond-mat.quant-gas2010
Long-lived periodic revivals of coherence in an interacting Bose-Einstein condensate
Mikhail Egorov, Russell P. Anderson, Valentin Ivannikov +4
We observe the coherence of an interacting two-component Bose-Einstein condensate (BEC) surviving for seconds in a trapped Ramsey interferometer. Mean-field driven collective oscil…