Physics Colloquium

Error-corrected quantum processing with neutral atoms

Quantum computers open new scientific avenues and computational paradigms, but only if they can be made fault-tolerant. Control complexity and large error-correction overheads have made developing such a computer a longstanding challenge. Here we will describe the development of quantum computing with reconfigurable arrays of neutral atoms and their use for realizing a fault-tolerant quantum computer. Quantum processing in this approach is based on the coherent transport of atoms shuttled by optical tweezers, enabling any-to-any connectivity, high-fidelity programmable logic, and mid-circuit processing within a zoned architecture. Fault-tolerant processing is greatly facilitated by parallel control, transversal operations, and long-range connectivity, and are utilized for experiments ranging from precise quantum scrambling simulation to realizing a universal fault-tolerant processing architecture. Theoretical advances, leveraging the long-range connectivity of the reconfigurable processor, enable greatly reduced error-correction overheads and the potential of utility-scale computation with as few as 10000 reconfigurable atomic qubits. We will discuss the potential of this approach to enable fault-tolerant quantum computing in the near term.

Join via Zoom: https://caltech.zoom.us/j/84497014003

Meeting ID: 844 9701 4003