NOON states in entangled cavities

Abstract

We show how NOON states may be generated entangling two cavities by passing atoms through them. The atoms interact with each cavity via two-photon resonant transitions. We take advantage of the fact that depending on the state the atom enter (excite or ground), it leaves or takes two photons per interaction and leaves the cavities in a pure state.

Generation of MOON states in ion-laser interactions

“…We consider an ion in a two-dimensional Paul trap [10], and we assume that the ion is driven by a plane wave…”

“…The greatest N for which N 00N states have been produced is N = 5 [4]. Most schemes to generate this class of states are either for optical [4,5] or microwave [10] fields.…”

Generation of NOON States in Waveguide Arrays

“…that represents a superposition of N particles in mode a with zero particles in mode b and zero particles in mode a with N particles in mode b. Most schemes to produce NOON states are in the optical regime [13]; however, in the case of cavity fields, it has been shown that NOON states with N = 4 may be generated [17], while in ion-laser interactions [18] NOON states may be generated for larger N 's [19]. Such nonclassical states have also been generated in acoustic wave resonators with high fidelities [20].…”

Generation of atomic NOON states via adiabatic passage

“…Many theoretical and experimental schemes have been proposed for generating the NOON states via optical components [15,[20][21][22][23][24][25][26][27], cold atomic ensemble [28], superconducting circuits [29,30], and cavity quantum electrodynamics (QED) [31][32][33][34][35][36][37][38][39]. However, the success probabilities of the proposals based on the linear optical components are very low as the number of particles increasing [22].…”