Rydberg wire gates for universal quantum computation

TL;DR

This paper proposes a universal quantum computing scheme using Rydberg atom arrays, employing auxiliary atoms as quantum wires to mediate interactions and constructing standard quantum gates with explicit pulse sequences.

Contribution

It introduces a novel gate-based quantum computing approach with auxiliary atoms acting as quantum wires in Rydberg-atom arrays, including explicit gate sequences and resource estimates.

Findings

Explicit sequences for one-, two-, and multi-qubit gates.

Resource estimates for experimental implementation.

Feasibility of using auxiliary atoms as quantum wires.

Abstract

Rydberg atom arrays offer flexible geometries of strongly-interacting neutral atoms, which are useful for many quantum applications such as quantum simulation and quantum computation. Here we consider a gate-based quantum computing scheme for a Rydberg-atom array. We utilize auxiliary atoms which are used as a quantum wire to mediate controllable interactions among data-qubit atoms. We construct universal quantum gates for the data atoms, by using single-atom addressing operations. Standard one-, two-, and multi-qubit solutions are explicitly obtained as respective sequences of pulsed operations acting on individual data and wire atoms. A detailed resource estimate is provided for an experimental implementation of this scheme in a Rydberg quantum simulator.