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Scalable set of reversible parity gates for integer factorization.

Communications physics·2024

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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Scalable quantum processors empowered by the Fermi scattering of Rydberg electrons.

Mohammadsadegh Khazali^1,2,3, Wolfgang Lechner^4,5

¹Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria.

Communications Physics

|April 26, 2024

Summary

This study introduces a new quantum computing method using Fermi scattering in neutral atom processors. It overcomes scaling limitations of Rydberg gates for faster, more reliable quantum computations.

Keywords:

Quantum information Quantum simulation

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Area of Science:

Quantum Computing
Atomic Physics
Quantum Information Science

Background:

Neutral atom processors are scalable but face bottlenecks due to Rydberg gates.
Scaling challenges limit the practical application of current neutral atom quantum computers.

Purpose of the Study:

To present an alternative scheme for neutral atom quantum processing.
To overcome the scaling limitations imposed by Rydberg gates in quantum processors.

Main Methods:

Utilizes Fermi scattering of a Rydberg electron from ground-state atoms.
Employs spin-dependent lattice geometries and engineered electron clouds.
Relies on Rydberg-Fermi potentials instead of Rydberg pair-potentials.

Main Results:

Addresses scaling obstacles by suppressing short-lived state populations.
Enables operation in ultra-dense atomic lattices.
Preserves trapping over long interaction periods via molecule-type potentials.

Conclusions:

The proposed scheme mitigates infidelity, eliminates cross-talks, and reduces operation depth.
Offers a pathway to overcome scaling bottlenecks in neutral atom quantum computing.
Enhances the feasibility of running complex quantum algorithms on neutral atom platforms.