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Multi-qubit gates for quantum computing with neutral atoms
Guido Pupillo - University of Strasbourg
ATL 3100A and Virtual Via Zoom: https://umd.zoom.us/j/94132242227?pwd=YzFOK1VHS2k0VngzWmZlSkVUZGl5dz09 Meeting ID: 941 3224 2227 Passcode: 191609 Computer and Space Sciences Building (CSS)
Friday, August 11, 2023, 10:00-11:00 am Calendar
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Abstract

Neutral atoms have emerged as a competitive platform for digital quantum simulations and computing. In this talk, we discuss recent results on the design of time-optimal and robust multi-qubit gates for neutral atoms. We present a family of Rydberg blockade gates that are robust against two common experimental imperfections -- intensity inhomogeneity and Doppler shifts – and demonstrate that these gates outperform existing gates for moderate or large imperfections. We also consider the performance of these gates in the context of a logical qubit and discuss how they may significantly reduce the laser stability and atomic temperature requirements to achieve fault-tolerant quantum computing for erasure-biased neutral atoms qubits. We conclude by commenting on alternative schemes to realize fast deterministic non-local multi-qubit quantum gates on qubits coupled to a common driven cavity mode and suggest possible applications for quantum simulations and error correction.

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This talk is organized by Andrea F. Svejda