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Principle and Progress of Cold Atom Clock in Space

屈求智 Qu Qiuzhi, 汪斌 Wang Bin, 吕德胜 Lü Desheng +4 more

Chinese Journal of LasersJan 1, 20153 citations

Cold atoms in space and atomic clocks: ACES

Ch Salomon, N. Dimarcq, Michel Abgrall +17 more

Comptes Rendus de l Académie des Sciences - Series IV - Physics-AstrophysicsNov 1, 200154 citations

Design of the cold atom PHARAO space clock and initial test results

Philippe Laurent, Michel Abgrall, Ch. Jentsch +17 more

Applied Physics BAug 30, 2006108 citations

Space cold atom clock with counter-propagating atoms

Desheng Lü, Bin Wang, Tang Li +1 more

We discuss the feasibility to realize a space cold atom clock with counter-propagating cold atoms in microgravity. The design of the space clock is based on atomic beam clock with a Ramsey cavity, except a magneto-optical trap (MOT) is placed at each side. Cold atoms are launched from MOTs at both side of the clock simultaneously and move at counter-direction towards each other. The velocity of launched atoms is precisely controlled to the Ramsauer-Townsend resonance so that no additional collision frequency shift is taken place. Such a configuration can efficiently cancel the frequency shift led from cavity phase shift and increase the signal to noise.We discuss the feasibility to realize a space cold atom clock with counter-propagating cold atoms in microgravity. The design of the space clock is based on atomic beam clock with a Ramsey cavity, except a magneto-optical trap (MOT) is placed at each side. Cold atoms are launched from MOTs at both side of the clock simultaneously and move at counter-direction towards each other. The velocity of launched atoms is precisely controlled to the Ramsauer-Townsend resonance so that no additional collision frequency shift is taken place. Such a configuration can efficiently cancel the frequency shift led from cavity phase shift and increase the signal to noise.

Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)Apr 1, 20090 citations

Cold Atom Space Clock with Counter-Propagating Atoms

Desheng Lv, Bin Wang, Tang Li +1 more

We discuss the feasibility to realize a space cold atom clock with counter-propagating cold atoms in microgravity. The design of the space clock is based on atomic beam clock with a Ramsey cavity, except a magneto-optical trap (MOT) is placed at each side. Cold atoms are launched from MOTs at both side of the clock simultaneously and move at counter-direction towards each other. The velocity of launched atoms is precisely controlled to the Ramsauer-Townsend resonance so that no additional collision frequency shift is taken place. Such a configuration can efficiently cancel the frequency shift led from cavity phase shift and increase the signal to noise.We discuss the feasibility to realize a space cold atom clock with counter-propagating cold atoms in microgravity. The design of the space clock is based on atomic beam clock with a Ramsey cavity, except a magneto-optical trap (MOT) is placed at each side. Cold atoms are launched from MOTs at both side of the clock simultaneously and move at counter-direction towards each other. The velocity of launched atoms is precisely controlled to the Ramsauer-Townsend resonance so that no additional collision frequency shift is taken place. Such a configuration can efficiently cancel the frequency shift led from cavity phase shift and increase the signal to noise.

arXiv:0902.3066Feb 18, 20091 citation

Atomic Clocks and Cold Atom Scattering

Chad Fertig, Ronald Legere, J.Irfon Rees +3 more

Springer eBooksJan 1, 20031 citation

Cold atom space clock with counter-propagating atoms

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Cold atom space clock with counter-propagating atoms

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