Article (Scientific journals)
Adiabatic passage and ensemble control of quantum systems
Leghtas, Zaki; Sarlette, Alain; Rouchon, Pierre
2011In Journal of Physics : B Atomic Molecular and Optical Physics, 44 (15), p. 154017
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Abstract :
[en] This paper considers population transfer between eigenstates of a finite quantum ladder controlled by a classical electric field. Using an appropriate change of variables, we show that this setting can be set in the framework of adiabatic passage, which is known to facilitate ensemble control of quantum systems. Building on this insight, we present a mathematical proof of robustness for a control protocol—chirped pulse—practised by experimentalists to drive an ensemble of quantum systems from the ground state to the most excited state. We then propose new adiabatic control protocols using a single chirped and amplitude-shaped pulse, to robustly perform any permutation of eigenstate populations, on an ensemble of systems with unknown coupling strengths. These adiabatic control protocols are illustrated by simulations on a four-level ladder.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Leghtas, Zaki;  INRIA Rocquencourt
Sarlette, Alain ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Rouchon, Pierre;  Mines ParisTech > Centre Automatique et Systèmes
Language :
English
Title :
Adiabatic passage and ensemble control of quantum systems
Publication date :
July 2011
Journal title :
Journal of Physics : B Atomic Molecular and Optical Physics
ISSN :
0953-4075
eISSN :
1361-6455
Publisher :
Institute of Physics, Bristol, United Kingdom
Volume :
44
Issue :
15
Pages :
154017
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 July 2011

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