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Title: Enhancement of ultracold molecule formation by local control in the nanosecond regime

Abstract

We describe quantum simulations of ultracold 87Rb 2 molecule formation using photoassociation (PA) with nanosecond-time-scale pulses of frequency chirped light. In particular, we compare the case of a linear chirp to one where the frequency evolution is optimized by local control (LC) of the phase, and find that LC can provide a significant enhancement. The resulting optimal frequency evolution corresponds to a rapid jump from the PA absorption resonance to a downward transition to a bound level of the lowest triplet state. We also consider the case of two frequencies and investigate interference effects. The assumed chirp parameters should be achievable with nanosecond pulse shaping techniques and are predicted to provide a significant enhancement over recent experiments with linear chirps.

Authors:
 [1];  [2];  [3];  [1]
  1. Univ. of Connecticut, Storrs, CT (United States)
  2. ORT-Braude College (Israel)
  3. Hebrew Univ. of Jerusalem (Israel)
Publication Date:
Research Org.:
University of Connecticut
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1341483
Alternate Identifier(s):
OSTI ID: 1203606
Grant/Contract Number:  
FG02-92ER14263
Resource Type:
Journal Article: Published Article
Journal Name:
New Journal of Physics
Additional Journal Information:
Journal Volume: 17; Journal Issue: 2; Journal ID: ISSN 1367-2630
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Carini, J. L., Kallush, S., Kosloff, R., and Gould, P. L.. Enhancement of ultracold molecule formation by local control in the nanosecond regime. United States: N. p., 2015. Web. doi:10.1088/1367-2630/17/2/025008.
Carini, J. L., Kallush, S., Kosloff, R., & Gould, P. L.. Enhancement of ultracold molecule formation by local control in the nanosecond regime. United States. doi:10.1088/1367-2630/17/2/025008.
Carini, J. L., Kallush, S., Kosloff, R., and Gould, P. L.. Sun . "Enhancement of ultracold molecule formation by local control in the nanosecond regime". United States. doi:10.1088/1367-2630/17/2/025008.
@article{osti_1341483,
title = {Enhancement of ultracold molecule formation by local control in the nanosecond regime},
author = {Carini, J. L. and Kallush, S. and Kosloff, R. and Gould, P. L.},
abstractNote = {We describe quantum simulations of ultracold 87Rb2 molecule formation using photoassociation (PA) with nanosecond-time-scale pulses of frequency chirped light. In particular, we compare the case of a linear chirp to one where the frequency evolution is optimized by local control (LC) of the phase, and find that LC can provide a significant enhancement. The resulting optimal frequency evolution corresponds to a rapid jump from the PA absorption resonance to a downward transition to a bound level of the lowest triplet state. We also consider the case of two frequencies and investigate interference effects. The assumed chirp parameters should be achievable with nanosecond pulse shaping techniques and are predicted to provide a significant enhancement over recent experiments with linear chirps.},
doi = {10.1088/1367-2630/17/2/025008},
journal = {New Journal of Physics},
number = 2,
volume = 17,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1088/1367-2630/17/2/025008

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

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