M Bruderer and D Jaksch 2006 New J. Phys. 8 87 doi:10.1088/1367-2630/8/6/087
M Bruderer1 and D Jaksch
Show affiliationsWe consider the dephasing of two internal states |0
and |1
of a trapped impurity atom, a so-called atomic quantum dot (AQD), where only state |1
couples to a Bose–Einstein condensate (BEC). A direct relation between the dephasing of the internal states of the AQD and the temporal phase fluctuations of the BEC is established. Based on this relation we suggest a scheme to probe BEC phase fluctuations non-destructively via dephasing measurements of the AQD. In particular, the scheme allows to trace the dependence of the phase fluctuations on the trapping geometry of the BEC.
03.75.Hh Static properties of condensates; thermodynamical, statistical and structural properties
03.65.Vf Phases: geometric; dynamic or topological
03.65.Ta Foundations of quantum mechanics; measurement theory
Quantum gases, liquids and solids
Issue 6 (June 2006)
Received 30 January 2006
Published 5 June 2006
M Bruderer and D Jaksch 2006 New J. Phys. 8 87
Joanna I House et al 2008 Environ. Res. Lett. 3 044002
E M Cherry and F H Fenton 2008 New J. Phys. 10 125016
Kamran Akhtar et al 2009 J. Phys. D: Appl. Phys. 42 135207
Apostolos P Georgopoulos et al 2007 J. Neural Eng. 4 349
M V Berry et al 2004 New J. Phys. 6 162
Matt Finer and Martí Orta-Martínez 2010 Environ. Res. Lett. 5 014012
R F Barrett et al 2008 J. Phys.: Conf. Ser. 125 012034
Åshild Fredriksen et al 2006 Phys. Scr. 2006 11
Å Fredriksen et al 2008 New J. Phys. 10 033030