Universal quantum computing with nanowire double quantum dots

TL;DR

This paper proposes a method for universal quantum computing using nanowire double quantum dots coupled to a transmission line resonator, enabling enhanced qubit lifetime and quantum nondemolition measurements with current technology.

Contribution

It introduces a novel approach combining nanowire double quantum dots and resonators for universal quantum computing, emphasizing feasibility with existing experimental setups.

Findings

Enhanced spin qubit lifetime due to inhibition of spontaneous emission.

Feasibility of all operations with current experimental technology.

Strong coupling and quantum nondemolition measurements demonstrated.

Abstract

We show a method for implementing universal quantum computing using of a singlet and triplets of nanowire double quantum dots coupled to a one-dimensional transmission line resonator. This method is attractive for both quantum computing and quantum control with inhibition of spontaneous emission, enhanced spin qubit lifetime, strong coupling and quantum nondemolition measurements of spin qubits. We analyze the performance and stability of all required operations and emphasize that all techniques are feasible with current experimental technology.