Controllable atom-photon entanglement via quantum interference near plasmonic nanostructure
Behzad Sangshekan, Mostafa Sahrai, Seyyed Hossein Asadpour, Jafar Poursamad Bonab
Abstract
A five-level atomic system is proposed in vicinity of a two-dimensional (2D) plasmonic nanostructure with application in atom-photon entanglement. The behavior of the atom-photon entanglement is discussed with and without a control laser field. The amount of atom-photon entanglement is controlled by the quantum interference created by the plasmonic nanostructure. Thus, the degree of atom-photon entanglement is affected by the atomic distance from the plasmonic nanostructure. In the presence of a control field, maximum entanglement between the atom and its spontaneous emission field is observed.
Topics & Concepts
Quantum entanglementAtom (system on chip)PlasmonPhotonNanostructurePhysicsPhoton entanglementInterference (communication)Quantum opticsQuantumField (mathematics)Atomic physicsQuantum mechanicsMathematicsChannel (broadcasting)Computer scienceEngineeringElectrical engineeringEmbedded systemPure mathematicsQuantum Information and CryptographyQuantum optics and atomic interactionsPlasmonic and Surface Plasmon Research