Generation of atomic NOON states via adiabatic passage

Abstract

We propose a scheme for generating atomic NOON states via adiabatic passage. In the scheme, a double $\Lambda$-type three-level atom is trapped in a bimodal cavity and two sets of $\Lambda$-type three-level atoms are translated into and outside of two single mode cavities respectively. The three cavities connected by optical fibres are always in vacuum states. After a series of operations and suitable interaction time, we can obtain arbitrary large-$n$ NOON states of two sets of $\Lambda$-type three-level atoms in distant cavities by performing a single projective measurement on the double $\Lambda$-type three-level atom. Due to adiabatic elimination of atomic excited states and the application of adiabatic passage, our scheme is robust against the spontaneous emissions of atoms, the decays of fibres and cavities photon leakage. So the scheme has a high fidelity and feasibility under the current available techniques.

18 pages, 8 figures

References in corpus (5)

• Magnetic field sensing beyond the standard quantum limit using 10-spin NOON states
• Deterministic entanglement of photons in two superconducting microwave resonators
• Generation of Large Number-Path Entanglement Using Linear Optics and Feed-Forward
• High photon number path entanglement in the interference of spontaneously downconverted photon pairs with coherent laser light
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