Quantum particle localization by frequent coherent monitoring

Goren Gordon*, Igor E. Mazets, Gershon Kurizki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We present an approach to monitoring and controlling a free quantum particle by coupling an internal (discrete) state of the particle to a detector (or probe). We consider a sequence of time-dependent, spatially localized interactions of the particle with the probe that are purely coherent (nondissipative), without mean energy-momentum exchange. We show that a sequence of such force-free interactions can freeze or deflect the particle.

Original languageEnglish
Article number052141
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number5
StatePublished - 31 May 2013
Externally publishedYes


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