Creation of ultracold molecules within the lifetime scale by direct implementation of an optical frequency comb

Gengyuan Liu, S. A. Malinovskaya

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A method is proposed to create molecules in the ultracold state from the Feshbach molecules by stepwise adiabatic passage using an optical frequency comb without losses due to decoherence. An emphasis is made on the impact of the vibrational state manifold on controllability of the coherent dynamics by including five excited states into the model. The results are compared with recently reported results on a three-level (Formula presented.) system. Sinusoidal modulation across an individual pulse in the pulse train is applied, leading to the creation of a quasi-dark state, which minimizes population of the transitional, vibrational state manifold, and efficiently mitigates decoherence in the system. The parity of the temporal chirp is shown to be an important factor in designing population dynamics in the system.

Original languageEnglish
Pages (from-to)1309-1317
Number of pages9
JournalJournal of Modern Optics
Volume65
Issue number11
DOIs
StatePublished - 25 Jun 2018

Keywords

  • Optical frequency comb
  • adiabatic passage
  • dark state
  • parity of the chirp
  • ultracold molecules

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