Cluster of Dipolar Coupled Spins as a Quantum Memory Storage

TL;DR

This paper demonstrates how a cluster of dipolar-coupled spins can be used as a quantum memory, showing long-lived coherence and potential for information exchange in quantum systems.

Contribution

It introduces a novel dynamic response in spin clusters enabling long-lived signals for quantum memory applications, supported by experimental evidence.

Findings

Long-lived coherent signals observed in 19 proton spins

Experimental validation of quantum memory potential

Dynamic response enables information exchange

Abstract

Spin dynamics of a cluster of coupled spins 1/2 can be manipulated to store and process a large amount of information. A new type of dynamic response makes it possible to excite coherent long-living signals, which can be used for exchanging information with a mesoscopic quantum system. An experimental demonstration is given for a system of 19 proton spins of a liquid crystal molecule.