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SUMMARY:Continuous operation of a coherent 3,000-qubit system
DESCRIPTION:Arrays of neutral atoms have emerged as a powerful platform for quantum computing, offering exceptional parallelism in gate operations and a high degree of reconfigurability. In the beginning of this talk, I will discuss our recently developed architecture towards fault-tolerant universal quantum computation using neutral atoms. One remaining limitation to achieving deep circuit depths is atom loss during gate operations and collisions with the background molecules in an vacuum. I will present a new experimental apparatus where atom loss can be compensated by continuously reloading fresh atoms into the atomic array. Our architecture employs a pair of optical conveyor belts that transport dense atomic reservoirs, initially prepared in a first vacuum chamber, into a second chamber where they are positioned near the quantum processor. Importantly, loading new atoms from the reservoir is non-destructive to the quantum state of the nearby array, enabling deep circuits through mid-circuit atom replacement in future experiments. Demonstrating a reloading rate of 300,000 atoms in tweezers per second, we create over 30,000 initialized qubits per second, which we leverage to assemble and maintain an array of over 3,000 atoms for more than two hours.
LOCATION:Erwin-Schödinger-Saal, IQOQI
DTSTART:20260113T130000
DTEND:20260113T140000
TZID: Europe/Vienna
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