6533b857fe1ef96bd12b39ee

RESEARCH PRODUCT

Teleportation of atomic states via position measurements

Michele TumminelloFrancesco Ciccarello

subject

PhysicsTRANSLATIONAL DYNAMICSQuantum PhysicsPhotonDETERMINISTIC QUANTUM TELEPORTATIONDegrees of freedom (statistics)Cavity quantum electrodynamicsFOS: Physical sciencesPhysics::OpticsQuantum entanglementQuantum PhysicsQuantum energy teleportationTeleportationAtomic and Molecular Physics and OpticsProjection (linear algebra)PODOLSKY-ROSEN CHANNELSRABI OSCILLATIONSQuantum mechanicsPhysics::Atomic and Molecular ClustersJAYNES-CUMMINGS MODELPhysics::Atomic PhysicsAtomic physicsQuantum Physics (quant-ph)Quantum teleportation

description

We present a scheme for conditionally teleporting an unknown atomic state in cavity QED, which requires two atoms and one cavity mode. The translational degrees of freedom of the atoms are taken into account using the optical Stern-Gerlach model. We show that successful teleportation with probability 1/2 can be achieved through local measurements of the cavity photon number and atomic positions. Neither direct projection onto highly entangled states nor holonomous interaction-time constraints are required.

10.1103/physreva.77.023825http://arxiv.org/abs/0706.0173