It is shown that distinct atomic beams can be entangled when they interact with quantum superpositions of macroscopically separated micromaser fields. Experimentally feasible tests of complementarity are proposed, detecting Ramsey interference (or not) in one and ``Welcher Weg'' information (or not) in the other entangled beam. Available information and fringe contrast can be manipulated using classical and quantum fields. The ``quantum eraser'' is realized in the former case, while it is only a special feature in the latter one. Other applications of entangled atoms are also suggested. \textcopyright{} 1996 The American Physical Society.It is shown that distinct atomic beams can be entangled when they interact with quantum superpositions of macroscopically separated micromaser fields. Experimentally feasible tests of complementarity are proposed, detecting Ramsey interference (or not) in one and ``Welcher Weg'' information (or not) in the other entangled beam. Available information and fringe contrast can be manipulated using classical and quantum fields. The ``quantum eraser'' is realized in the former case, while it is only a special feature in the latter one. Other applications of entangled atoms are also suggested. \textcopyright{} 1996 The American Physical Society.

Physical Review AJan 1, 199624 citations

Complementarity and quantum optics

Augusto Garuccio, Vito Luigi Lepore

Physics Letters AMar 1, 19920 citations

Formation of Ramsey fringes based on pulsed coherent light storage

Bo Yan, Yisheng Ma, Yuzhu Wang

We propose a scheme of obtaining Ramsey fringes based on pulsed coherent optical information storage. Unlike the usual frequency references where the Ramsey fringes are obtained by detecting the population of a certain state, we get the Ramsey fringes by detecting the atomic coherence. The central line of the Ramsey fringes can be used as a frequency reference in an absorption-cell-based atomic frequency standard. This scheme is free of light shifts as the interrogating process is separated from the optical pumping process, and the cavity pulling effect is negligible due to the low $Q$ requirement. Encoding the Ramsey interference into the retrieval light pulse has the merit of high signal-to-noise ratio. This scheme is promising for building small, compact, and stable atomic clocks.We propose a scheme of obtaining Ramsey fringes based on pulsed coherent optical information storage. Unlike the usual frequency references where the Ramsey fringes are obtained by detecting the population of a certain state, we get the Ramsey fringes by detecting the atomic coherence. The central line of the Ramsey fringes can be used as a frequency reference in an absorption-cell-based atomic frequency standard. This scheme is free of light shifts as the interrogating process is separated from the optical pumping process, and the cavity pulling effect is negligible due to the low $Q$ requirement. Encoding the Ramsey interference into the retrieval light pulse has the merit of high signal-to-noise ratio. This scheme is promising for building small, compact, and stable atomic clocks.

arXiv:0810.0623Physical Review AJun 11, 20096 citations

Quantum optical tests of complementarity

Marian O. Scully, Berthold‐Georg Englert, HERBERT WALTHER

NatureMay 1, 1991860 citations

Analytical function study of Ramsey-CPT interference fringe with experimental verification

Huifang Lin, Kejun Shang, Yuan Tian +2 more

Abstract In this study, the difference detection magnetic optical rotation (MOR) Ramsey-coherent population trapping (CPT) interference fringe signal was taken as the object for research. By solving the optical Bloch equations, the analytic function solution was obtained. An experimental platform was also used to obtain the MOR Ramsey-CPT interference fringe signal experimentally. The experimental results match the results for the calculation of the analytic function. Use of the analytic function solution is convenient and effective for studying the Ramsey-CPT interference phenomenon.Abstract In this study, the difference detection magnetic optical rotation (MOR) Ramsey-coherent population trapping (CPT) interference fringe signal was taken as the object for research. By solving the optical Bloch equations, the analytic function solution was obtained. An experimental platform was also used to obtain the MOR Ramsey-CPT interference fringe signal experimentally. The experimental results match the results for the calculation of the analytic function. Use of the analytic function solution is convenient and effective for studying the Ramsey-CPT interference phenomenon.

Journal of Physics B Atomic Molecular and Optical PhysicsFeb 24, 20201 citation

Q

requirement. Encoding the Ramsey interference into the retrieval light pulse has the merit of high signal-to-noise ratio. This scheme is promising for building small, compact, and stable atomic clocks.