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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 12 — Jun. 15, 2012
  • pp: 2298–2300

Manipulation of ultracold Rb atoms using a single linearly chirped laser pulse

T. A. Collins and S. A. Malinovskaya  »View Author Affiliations

Optics Letters, Vol. 37, Issue 12, pp. 2298-2300 (2012)

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At ultracold temperatures, atoms are free from thermal motion, which makes them ideal objects of investigations aiming to advance high-precision spectroscopy, metrology, quantum computation, producing Bose condensates, etc. The quantum state of ultracold atoms may be created and manipulated by making use of quantum control methods employing low-intensity pulses. We theoretically investigate population dynamics of ultracold Rb vapor induced by nanosecond linearly chirped pulses having kW/cm2 beam intensity and show a possibility of controllable population transfer between hyperfine (HpF) levels of 52S1/2 state through Raman transitions. Satisfying the one-photon resonance condition with the lowest of the HpF states of 52P1/2 or 52P3/2 state allows us to enter the adiabatic region of population transfer at very low field intensities, such that corresponding Rabi frequencies are less than or equal to the HpF splitting. This methodology provides a robust way to create a specifically designed superposition state in Rb in the basis of HpF levels and perform state manipulation controllable on the picosecond-to-nanosecond time scale.

© 2012 Optical Society of America

OCIS Codes
(290.5860) Scattering : Scattering, Raman
(020.1335) Atomic and molecular physics : Atom optics

ToC Category:
Atomic and Molecular Physics

Original Manuscript: February 20, 2012
Manuscript Accepted: March 9, 2012
Published: June 8, 2012

T. A. Collins and S. A. Malinovskaya, "Manipulation of ultracold Rb atoms using a single linearly chirped laser pulse," Opt. Lett. 37, 2298-2300 (2012)

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