Details
| Original language | English |
|---|---|
| Pages (from-to) | 663-671 |
| Number of pages | 9 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 84 |
| Issue number | 4 |
| Publication status | Published - 20 Jul 2006 |
Abstract
We report the current status of our cooperative effort to realize a 87Rb Bose-Einstein condensate in microgravity. Targeting the long-term goal of studying cold quantum gases on a space platform, we currently focus on the implementation of an experiment at the ZARM drop tower in Bremen. Fulfilling the technical requirements for operation in this facility, the complete experimental setup will fit in a volume of less than 1m3 with a total mass below 150kg and a total power consumption of the order of 625W. The individual parts of the setup, in particular the ultra-compact laser system as a critical component, are presented. In addition, we discuss a first demonstration of the mechanical and frequency control stability of the laser modules. On the theoretical side, we outline the non-relativistic description of a freely falling many-particle system in the rotating frame of the Earth. In particular, we show that the time evolution of a harmonically trapped, collisionally interacting degenerate gas of bosons or fermions is as simple in an accelerated, rotating frame of reference as in an inertial frame. By adopting a co-moving generalized Galilean frame, we can eliminate inertial forces and torques. This leads to important simplifications for numerical simulation of the experiment.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 84, No. 4, 20.07.2006, p. 663-671.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Bose-Einstein condensates in microgravity
AU - Vogel, A.
AU - Schmidt, M.
AU - Sengstock, K.
AU - Bongs, K.
AU - Lewoczko, W.
AU - Schuldt, T.
AU - Peters, A.
AU - Van Zoest, T.
AU - Ertmer, W.
AU - Rasel, E.
AU - Steinmetz, T.
AU - Reichel, J.
AU - Könemann, T.
AU - Brinkmann, W.
AU - Göklü, E.
AU - Lämmerzahl, C.
AU - Dittus, H. J.
AU - Nandi, G.
AU - Schleich, W. P.
AU - Walser, R.
PY - 2006/7/20
Y1 - 2006/7/20
N2 - We report the current status of our cooperative effort to realize a 87Rb Bose-Einstein condensate in microgravity. Targeting the long-term goal of studying cold quantum gases on a space platform, we currently focus on the implementation of an experiment at the ZARM drop tower in Bremen. Fulfilling the technical requirements for operation in this facility, the complete experimental setup will fit in a volume of less than 1m3 with a total mass below 150kg and a total power consumption of the order of 625W. The individual parts of the setup, in particular the ultra-compact laser system as a critical component, are presented. In addition, we discuss a first demonstration of the mechanical and frequency control stability of the laser modules. On the theoretical side, we outline the non-relativistic description of a freely falling many-particle system in the rotating frame of the Earth. In particular, we show that the time evolution of a harmonically trapped, collisionally interacting degenerate gas of bosons or fermions is as simple in an accelerated, rotating frame of reference as in an inertial frame. By adopting a co-moving generalized Galilean frame, we can eliminate inertial forces and torques. This leads to important simplifications for numerical simulation of the experiment.
AB - We report the current status of our cooperative effort to realize a 87Rb Bose-Einstein condensate in microgravity. Targeting the long-term goal of studying cold quantum gases on a space platform, we currently focus on the implementation of an experiment at the ZARM drop tower in Bremen. Fulfilling the technical requirements for operation in this facility, the complete experimental setup will fit in a volume of less than 1m3 with a total mass below 150kg and a total power consumption of the order of 625W. The individual parts of the setup, in particular the ultra-compact laser system as a critical component, are presented. In addition, we discuss a first demonstration of the mechanical and frequency control stability of the laser modules. On the theoretical side, we outline the non-relativistic description of a freely falling many-particle system in the rotating frame of the Earth. In particular, we show that the time evolution of a harmonically trapped, collisionally interacting degenerate gas of bosons or fermions is as simple in an accelerated, rotating frame of reference as in an inertial frame. By adopting a co-moving generalized Galilean frame, we can eliminate inertial forces and torques. This leads to important simplifications for numerical simulation of the experiment.
UR - http://www.scopus.com/inward/record.url?scp=33748498917&partnerID=8YFLogxK
U2 - 10.1007/s00340-006-2359-y
DO - 10.1007/s00340-006-2359-y
M3 - Article
AN - SCOPUS:33748498917
VL - 84
SP - 663
EP - 671
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 4
ER -