Short cycle pulse sequence for dynamical decoupling of local fields and dipole-dipole interactions

TL;DR

This paper introduces a novel short cycle pulse sequence for dynamical decoupling in nuclear spin systems, enhancing quantum memory longevity and aiding quantum computing and communication.

Contribution

The paper presents a new pulse sequence that effectively averages dipole-dipole interactions and magnetic field inhomogeneities, improving quantum memory stability.

Findings

Enables long-lived multi-qubit quantum memory

Offers a new method for dynamical decoupling in spin systems

Potential applications in quantum computing and communication

Abstract

We propose a new pulse sequence for dynamical averaging of the dipole-dipole interactions and inhomogeneities of the magnetic fields in the nuclear spin system. The sequence contains a short cycle of the periodic resonant pulse excitation that offers new possibilities for implementing the long-lived multi-qubit quantum memory on the condensed spin ensembles that are so important for construction of universal quantum computer and long-distance quantum communications.