Tweezer-assisted subwavelength positioning of atomic arrays in an optical cavity

Abstract

We present an experimental technique that enables the preparation of defect-free arrays of 87Rb atoms within a microscopic high-finesse optical standing-wave cavity. By employing optical tweezers, we demonstrate atom positioning with a precision well below the cavity wavelength, a crucial requirement for cavity-QED experiments in which maximum atom-cavity coupling strength is required. We leverage our control capabilities to assemble an array of up to seven atoms with an efficiency that exceeds previous probabilistic methods by 4 orders of magnitude. The atoms are subsequently transferred from the tweezer array to a two-dimensional intracavity optical lattice that offers enhanced coherence for spin qubits while maintaining strong atom confinement. Our system overcomes the efficiency limitations of previous probabilistic loading techniques of cavity-coupled atom arrays and opens the path to multiqubit quantum networks with atoms strongly coupled to optical cavities.

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• Fusion of deterministically generated photonic graph states

Cited by in corpus (5)

• Nanoscale Mirrorless Superradiant Lasing
• Generation of Motional Squeezed States for Neutral Atoms in Optical Tweezers
• Super-Heisenberg-limited Sensing via Collective Subradiance in Waveguide Quantum Electrodynamics
• Dissipative Generation of Currents by Nonreciprocal Local and Global Environments
• Quantum Limits to Linewidth Narrowing in Single- and Few-Atom Cavity Electromagnetically Induced Transparency