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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 21, Iss. 3 — Mar. 1, 2004
  • pp: 473–479

Performance of a feedback-controlled, deterministic source of single chromium atoms

Shannon B. Hill and Jabez J. McClelland  »View Author Affiliations

JOSA B, Vol. 21, Issue 3, pp. 473-479 (2004)

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A magneto-optical trap with feedback-controlled loading and loss rates is used to realize a deterministic source of single chromium atoms with single-atom occupation probability as high as 0.987±0.001. We present a series of measurements of the performance of this source and discuss the dependence of the probability of not having a single atom in the trap (error rate) on experimental parameters. We describe a simple analytical model that considers mean load rate, trap lifetime, stray load rate, and feedback response time, and we also present results of Monte Carlo calculations that take into account all experimental conditions. We find that the analytical model describes the behavior well for error rates as small as about 0.03, but the Monte Carlo simulations must be used to model behavior at error rates lower than this, as the occupation probability approaches unity.

© 2004 Optical Society of America

OCIS Codes
(020.5580) Atomic and molecular physics : Quantum electrodynamics
(020.7010) Atomic and molecular physics : Laser trapping

Shannon B. Hill and Jabez J. McClelland, "Performance of a feedback-controlled, deterministic source of single chromium atoms," J. Opt. Soc. Am. B 21, 473-479 (2004)

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  18. In fact, three slightly different load thresholds (1000 s−1, 1020 s−1 and 1142 s−1) and four slightly different dump thresholds (7000 s−1, 7200 s−1, 7220 s−1 and 7670 s−1) were used for the various runs reported here; however, variation in the performance over these values was observed to be negligible.

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