Imperial College London
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ProfessorMichaelTarbutt

Faculty of Natural Sciences, Department of Physics

Professor of Experimental Physics
 
 
 
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Contact

 

+44 (0)20 7594 7741m.tarbutt

 
 
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Location

 

207Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Blackmore:2019:2058-9565/aaee35,
author = {Blackmore, JA and Caldwell, L and Gregory, PD and Bridge, EM and Sawant, R and Aldegunde, J and Mur-Petit, J and Jaksch, D and Hutson, JM and Sauer, BE and Tarbutt, MR and Cornish, SL},
doi = {2058-9565/aaee35},
journal = {Quantum Science and Technology},
title = {Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs},
url = {http://dx.doi.org/10.1088/2058-9565/aaee35},
volume = {4},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Polar molecules offer a new platform for quantum simulation of systems with long-range interactions, based on the electrostatic interaction between their electric dipole moments. Here, we report the development of coherent quantum state control using microwave fields in 40Ca19F and 87Rb133Cs molecules, a crucial ingredient for many quantum simulation applications. We perform Ramsey interferometry measurements with fringe spacings of ~1 kHz and investigate the dephasing time of a superposition of N = 0 and N = 1 rotational states when the molecules are confined. For both molecules, we show that a judicious choice of molecular hyperfine states minimises the impact of spatially varying transition-frequency shifts across the trap. For magnetically trapped 40Ca19F we use a magnetically insensitive transition and observe a coherence time of 0.61(3) ms. For optically trapped 87Rb133Cs we exploit an avoided crossing in the AC Stark shifts and observe a maximum coherence time of 0.75(6) ms.
AU  - Blackmore,JA
AU  - Caldwell,L
AU  - Gregory,PD
AU  - Bridge,EM
AU  - Sawant,R
AU  - Aldegunde,J
AU  - Mur-Petit,J
AU  - Jaksch,D
AU  - Hutson,JM
AU  - Sauer,BE
AU  - Tarbutt,MR
AU  - Cornish,SL
DO  - 2058-9565/aaee35
PY  - 2019///
SN  - 2058-9565
TI  - Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
T2  - Quantum Science and Technology
UR  - http://dx.doi.org/10.1088/2058-9565/aaee35
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000452553200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/65375
VL  - 4
ER  -
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