Quantum computation with ultracold atoms in a driven optical lattice

TL;DR

This paper proposes a scheme for quantum computation using ultracold atoms in a driven optical lattice, achieving high fidelity operations with minimal decoherence and feasible experimental techniques.

Contribution

It introduces a novel approach to quantum computing with atoms in optical lattices, utilizing lattice shaking and single-site addressability for high-fidelity gates.

Findings

Fidelities above 99% are achievable.

Gate times are on the order of milliseconds.

Spin decoherence does not affect the computation.

Abstract

We propose a scheme for quantum computation in optical lattices. The qubits are encoded in the spacial wavefunction of the atoms such that spin decoherence does not influence the computation. Quantum operations are steered by shaking the lattice while qubit addressability can be provided with experimentally available techniques of changing the lattice with single-site resolution. Numerical calculations show possible fidelities above 99% with gate times on the order of milliseconds.