Probing the motion of cold atoms by Faraday spectroscopy

Gregory A Smith, Souma Chaudhury, Poul S Jessen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have implemented a continuous measurement of the mean magnetic moment of an ensemble of atoms trapped in a far-off-resonance optical lattice, by detecting the Faraday rotation of one of the lattice beams after it has passed through the atom cloud. In a first demonstration experiment we have observed Larmor precession with high signal-to-noise ratio, and compared the performance of the measurement with a simple theory. Faraday spectroscopy offers an ideal method to monitor the atomic dynamics and will be applied to the study of quantum chaos in magneto-optical lattices. In principle the measurement sensitivity can be increased to the point where quantum backaction becomes significant, thereby opening the door to studies of quantum feedback, spin squeezing and the role played by quantum measurement in quantum/classical correspondence.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsD. Abbott, J.H. Shapiro, Y. Yamamoto
Pages396-400
Number of pages5
Volume5111
DOIs
StatePublished - 2003
EventFluctuations and Noise in Photonics and Quantum Optics - Santa Fe, NM, United States
Duration: Jun 2 2003Jun 4 2003

Other

OtherFluctuations and Noise in Photonics and Quantum Optics
CountryUnited States
CitySanta Fe, NM
Period6/2/036/4/03

Fingerprint

Spectroscopy
Optical lattices
Atoms
spectroscopy
atoms
Larmor precession
Faraday effect
optical resonance
Magnetic moments
compressing
Chaos theory
chaos
Signal to noise ratio
signal to noise ratios
Demonstrations
magnetic moments
Feedback
Experiments

Keywords

  • Continuous quantum measurement
  • Faraday spectroscopy
  • Optical lattice
  • Quantum chaos
  • Quantum control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Smith, G. A., Chaudhury, S., & Jessen, P. S. (2003). Probing the motion of cold atoms by Faraday spectroscopy. In D. Abbott, J. H. Shapiro, & Y. Yamamoto (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5111, pp. 396-400) https://doi.org/10.1117/12.504771

Probing the motion of cold atoms by Faraday spectroscopy. / Smith, Gregory A; Chaudhury, Souma; Jessen, Poul S.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / D. Abbott; J.H. Shapiro; Y. Yamamoto. Vol. 5111 2003. p. 396-400.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Smith, GA, Chaudhury, S & Jessen, PS 2003, Probing the motion of cold atoms by Faraday spectroscopy. in D Abbott, JH Shapiro & Y Yamamoto (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5111, pp. 396-400, Fluctuations and Noise in Photonics and Quantum Optics, Santa Fe, NM, United States, 6/2/03. https://doi.org/10.1117/12.504771
Smith GA, Chaudhury S, Jessen PS. Probing the motion of cold atoms by Faraday spectroscopy. In Abbott D, Shapiro JH, Yamamoto Y, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5111. 2003. p. 396-400 https://doi.org/10.1117/12.504771
Smith, Gregory A ; Chaudhury, Souma ; Jessen, Poul S. / Probing the motion of cold atoms by Faraday spectroscopy. Proceedings of SPIE - The International Society for Optical Engineering. editor / D. Abbott ; J.H. Shapiro ; Y. Yamamoto. Vol. 5111 2003. pp. 396-400
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