A cryogenic neutral-atom platform with full optical access and 2-hour trap lifetime

• URL: http://arxiv.org/abs/2607.12988v1
• Date: Tue, 14 Jul 2026 17:35:30 GMT
• Title: A cryogenic neutral-atom platform with full optical access and 2-hour trap lifetime
• Abstract summary: We report on the operation of a novel, cryogenically enhanced, neutral-atom apparatus.<n>We demonstrate vacuum-limited trapping lifetimes of up to two hours of single $88mathrmSr$ atoms in an optical tweezer array.<n>Our measurements show that exceptionally long single-atom lifetimes can be achieved with a relatively simple cryostat design.
• Score: 2.795782132371116
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Neutral-atom quantum processors are rapidly scaling toward system sizes of more than ten thousand qubits, allowing for the realization of a new class of quantum computing algorithms and quantum simulation experiments. However, current neutral-atom platforms generally have to find a compromise between the optical accessibility and the storage time of atoms in optical potentials, limiting the available qubit numbers. Here we report on the operation of a novel, cryogenically enhanced, neutral-atom apparatus that overcomes these apparently conflicting requirements. We demonstrate vacuum-limited trapping lifetimes of up to two hours of single $^{88}\mathrm{Sr}$ atoms in an optical tweezer array while preserving full optical access and without the need for complex cryogenic enclosures. Our measurements show that exceptionally long single-atom lifetimes can be achieved with a relatively simple cryostat design. Our architecture can be straightforwardly ported to other atomic species and shows a viable path for scaling up to sorted arrays of tens of thousands of atoms.

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