Single-atom quantum control of macroscopic mechanical oscillators

Abstract

We investigate a hybrid electro-mechanical system consisting of a pair of charged macroscopic mechanical oscillators coupled to a small ensemble of Rydberg atoms. The resonant dipole-dipole coupling between an internal atomic Rydberg transition and the mechanics allows cooling to its motional ground state with a single atom despite the considerable mass imbalance between the two subsystems. We show that the rich electronic spectrum of Rydberg atoms, combined with their high degree of optical control, paves the way towards implementing various quantum-control protocol for the mechanical oscillators.

5 + 1 pages, 3 figures

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• Quantum Optomechanics - throwing a glance
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• On-chip quantum tomography of mechanical nano-scale oscillators with guided Rydberg atoms
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• Strong coupling and active cooling in a finite temperature hybrid atom-cavity system
• Charged oscillator quantum state generation with Rydberg atoms