title: Phase space tweezers for tailoring cavity fields by quantum Zeno dynamics.
abstract: We discuss an implementation of quantum Zeno dynamics in a cavity quantum electrodynamics experiment. By performing repeated unitary operations on atoms coupled to the field, we restrict the field evolution in chosen subspaces of the total Hilbert space. This procedure leads to promising methods for tailoring nonclassical states. We propose to realize "tweezers" picking a coherent field at a point in phase space and moving it towards an arbitrary final position without affecting other nonoverlapping coherent components. These effects could be observed with a state-of-the-art apparatus.
authors.affiliation: Laboratoire Kastler Brossel, CNRS, ENS, UPMC-Paris 6, 24 rue Lhomond, 75231 Paris, France.
authors.forename: J M
authors.initials: JM
authors.lastname: Raimond
authors.forename: C
authors.initials: C
authors.lastname: Sayrin
authors.forename: S
authors.initials: S
authors.lastname: Gleyzes
authors.forename: I
authors.initials: I
authors.lastname: Dotsenko
authors.forename: M
authors.initials: M
authors.lastname: Brune
authors.forename: S
authors.initials: S
authors.lastname: Haroche
authors.forename: P
authors.initials: P
authors.lastname: Facchi
authors.forename: S
authors.initials: S
authors.lastname: Pascazio