2026-09-19T18:28:38Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/361262022-01-13T07:54:41Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Vladan Vuletić.
Loh, Huanqian
Massachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology. Department of Physics
2007-02-21T11:30:53Z
2007-02-21T11:30:53Z
2006
2006
http://hdl.handle.net/1721.1/36126
72463951
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.
Includes bibliographical references (p. 89-95).
Using cesium atoms weakly coupled to a low-finesse cavity, we have generated photon pairs that are highly correlated in a non-classical way, as demonstrated by a large violation of the Cauchy-Schwartz inequality G = 760 +2100 -320 for a bin width T = 60 ns. Biphoton interferometry of the correlated pairs via the Holland-Burnett scheme holds promise to demonstrate precision beyond the shot noise limit, although the current interference fringe visibility of [beta]= 0.84 ± 0.04 only translates to a shot noise limited phase uncertainty. Polarization-time entangled pairs can also be directly generated, by optically pumping the atoms to both F = 3, mF = ±3 ground states. The degree of entanglement, expressed by the calculated fidelity f = 0.81 ± 0.09 and calculated Bell state parameter S = 2.3 ± 0.2, is estimated to be finite but not maximal.
by Huanqian Loh.
S.B.
95 p.
eng
Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Physics.
Applications of correlated photon pairs : sub-shot noise interferometry and entanglement
Thesis
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