Entanglement generation and multiparticle interferometry with neutral atoms

Abstract

We study the preparation and manipulation of states involving a small number of interacting particles. By controlling the splitting and fusing of potential wells, we show how to interconvert Mott-insulator-like and trapped BEC-like states. We also discuss the generation of "Schrödinger cat" states by splitting a microtrap and taking into practical consideration the asymmetry between the resulting wells. These schemes can be used to perform multiparticle interferometry with neutral atoms, where interference effects can be observed only when all the participating particles are measured.

5 figures

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• Atom Fock state preparation by trap reduction
• Deterministic Entanglement via Molecular Dissociation in Integrated Atom Optics
• Controlled splitting of an atomic wave packet
• Quantum metrology with precision reaching beyond-$1/N$ scaling through $N$-probe entanglement generating interactions
• Limits on entanglement in rotationally-invariant scattering of spin systems
• Coherent Control of Trapped Bosons
• Calculation of Atomic Number States: a Bethe Ansatz Approach
• Supersymmetry-assisted high-fidelity ground state preparation of single neutral atom in an optical tweezer