Experimental Realization of an NMR Quantum Switch

TL;DR

This paper demonstrates an experimental quantum switch using nuclear magnetic resonance, showcasing a scalable architecture capable of switching classical and quantum information with potential applications in quantum networks.

Contribution

It presents the first experimental realization of a quantum switch using NMR techniques, highlighting its scalability and dual classical-quantum switching capabilities.

Findings

Successful implementation of NMR quantum switch

Scalable architecture for high throughput switching

Potential use in quantum information networks

Abstract

In this paper, we report an experimental realization of quantum switch using nuclear spins and magnetic resonant pulses. The nuclear spins of H and C in carbon-13 labelled chloroform are used to carry the information, then nuclear magnetic resonance pulses are applied to perform either bypass or cross function to achieve the switching. Compared with a traditional space or time domain switch, this switching architecture is much more scalable, therefore a high throughput switching device can be built simply by increasing the number of I/O ports. In addition, it can be used not only as a device to switch classical information, but also a building block of quantum information networks.