Realistic model for a quantum reflection trap

Alexander Jurisch; Harald Friedrich

doi:10.1016/j.physleta.2005.09.014

Realistic model for a quantum reflection trap

Alexander Jurisch
, Harald Friedrich

School Office of the TUM School of Natural Sciences

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We examine the possibility of trapping ultra-cold atoms solely by quantum reflection in front of the walls of a cavity. Using a model potential with realistic threshold properties, we calculate the enhancement of the survival probability in the trap compared to the decay of a freely spreading wave-packet. Under conditions close to a recent experiment [T.A. Pasquini, Y. Shin, C. Sanner, M. Saba, A. Schirotzek, D.E. Pritchard, W. Ketterle, Phys. Rev. Lett. 93 (2004) 223201], an enhancement factor near 100 and surviving fractions of 10-20% are obtained after a time of 0.4 s.

Original language	English
Pages (from-to)	230-235
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	349
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physleta.2005.09.014
State	Published - 9 Jan 2006

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10.1016/j.physleta.2005.09.014

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title = "Realistic model for a quantum reflection trap",

abstract = "We examine the possibility of trapping ultra-cold atoms solely by quantum reflection in front of the walls of a cavity. Using a model potential with realistic threshold properties, we calculate the enhancement of the survival probability in the trap compared to the decay of a freely spreading wave-packet. Under conditions close to a recent experiment [T.A. Pasquini, Y. Shin, C. Sanner, M. Saba, A. Schirotzek, D.E. Pritchard, W. Ketterle, Phys. Rev. Lett. 93 (2004) 223201], an enhancement factor near 100 and surviving fractions of 10-20\% are obtained after a time of 0.4 s.",

author = "Alexander Jurisch and Harald Friedrich",

note = "Funding Information: We thank the Deutsche Forschungsgemeinschaft for supporting this work (Az: Fr 591/12-1). We are very grateful to Javier Madronero for enlightening discussions and numerical support.",

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AU - Jurisch, Alexander

AU - Friedrich, Harald

N1 - Funding Information: We thank the Deutsche Forschungsgemeinschaft for supporting this work (Az: Fr 591/12-1). We are very grateful to Javier Madronero for enlightening discussions and numerical support.

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Y1 - 2006/1/9

N2 - We examine the possibility of trapping ultra-cold atoms solely by quantum reflection in front of the walls of a cavity. Using a model potential with realistic threshold properties, we calculate the enhancement of the survival probability in the trap compared to the decay of a freely spreading wave-packet. Under conditions close to a recent experiment [T.A. Pasquini, Y. Shin, C. Sanner, M. Saba, A. Schirotzek, D.E. Pritchard, W. Ketterle, Phys. Rev. Lett. 93 (2004) 223201], an enhancement factor near 100 and surviving fractions of 10-20% are obtained after a time of 0.4 s.

AB - We examine the possibility of trapping ultra-cold atoms solely by quantum reflection in front of the walls of a cavity. Using a model potential with realistic threshold properties, we calculate the enhancement of the survival probability in the trap compared to the decay of a freely spreading wave-packet. Under conditions close to a recent experiment [T.A. Pasquini, Y. Shin, C. Sanner, M. Saba, A. Schirotzek, D.E. Pritchard, W. Ketterle, Phys. Rev. Lett. 93 (2004) 223201], an enhancement factor near 100 and surviving fractions of 10-20% are obtained after a time of 0.4 s.

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

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ER -

Realistic model for a quantum reflection trap

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