Phys. Rev. A 77, 032315 (2008) [9 pages]Optimization of short coherent control pulsesReceived 4 September 2007; revised 11 December 2007; published 7 March 2008 The coherent control of a small quantum system is considered. For a two-level system coupled to an arbitrary bath we consider a pulse of finite duration. We derive the leading and the next-leading order corrections to the evolution operator due to the noncommutation of the pulse and the bath Hamiltonian. The conditions are computed that make the leading corrections vanish. The pulse shapes optimized in this way are given for π and π/2 pulses. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.77.032315
DOI:
10.1103/PhysRevA.77.032315
PACS:
03.67.Lx, 03.67.Pp, 03.65.Yz, 76.60.−k
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.