Cold-atoms: A clean system for clocks based on coherent population trapping (Conference Presentation)

2017 ◽  
Author(s):  
Elizabeth A. Donley ◽  
Xiaochi Liu ◽  
Eugene N. Ivanov ◽  
Valeriy I. Yudin ◽  
John E. Kitching
Keyword(s):  
Cold Atoms ◽  
Coherent Population Trapping ◽  
Clean System ◽  
Population Trapping

Coherent population trapping states with cold atoms in a magnetic field

2003 ◽  
Vol 220 (4-6) ◽  
pp. 365-370 ◽  
Author(s):  
Sihong Gu ◽  
J.A Behr ◽  
M.N Groves ◽  
D Dhat
Keyword(s):  
Magnetic Field ◽  
Cold Atoms ◽  
Coherent Population Trapping ◽  
Population Trapping

Coherent Population Trapping-Ramsey Interference in Cold Atoms

2010 ◽  
Vol 27 (11) ◽  
pp. 113201 ◽  
Author(s):  
Chen Xi ◽  
Yang Guo-Qing ◽  
Wang Jin ◽  
Zhan Ming-Sheng
Keyword(s):  
Cold Atoms ◽  
Coherent Population Trapping ◽  
Population Trapping

scholarly journals Towards a compact, optically interrogated, cold-atom microwave clock

2020 ◽  
Vol 9 (5) ◽  
pp. 297-303
Author(s):  
Rachel Elvin ◽  
Michael W. Wright ◽  
Ben Lewis ◽  
Brendan L. Keliehor ◽  
Alan Bregazzi ◽  
...  
Keyword(s):  
Cold Atoms ◽  
Optical Trap ◽  
Cold Atom ◽  
Free Fall ◽  
Coherent Population Trapping ◽  
Short Term ◽  
State Splitting ◽  
Noise Limit ◽  
Atomic Ground State ◽  
Population Trapping

AbstractA compact platform for cold atoms opens a range of exciting possibilities for portable, robust and accessible quantum sensors. In this work, we report on the development of a cold-atom microwave clock in a small package. Our work utilises the grating magneto-optical trap and high-contrast coherent population trapping in the lin$\perp $lin polarisation scheme. We optically probe the atomic ground-state splitting of cold 87Rb atoms using a Ramsey-like sequence whilst the atoms are in free-fall. We have measured a short-term fractional frequency stability of $5{\times}{10}^{-11}/\sqrt{\tau }$ with a projected quantum projection noise limit at the ${10}^{-13}/\sqrt{\tau }$ level.

Coherent population trapping in quantum systems

1993 ◽  
Vol 163 (9) ◽  
pp. 1 ◽  
Author(s):  
B.D. Agap'ev ◽  
M.B. Gornyi ◽  
B.G. Matisov ◽  
Yu.V. Rozhdestvenskii
Keyword(s):  
Quantum Systems ◽  
Coherent Population Trapping ◽  
Population Trapping
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