Vortical Quantum Memory

TL;DR

This paper proposes a novel quantum memory system utilizing vortices in Quantum Hall systems coupled with magnetic modes of electromagnetic radiation, supported by real-time Hamiltonian simulations.

Contribution

It introduces a new approach to quantum memory using vortices in Quantum Hall systems and models their response to magnetic modes as a quench process.

Findings

Oscillation between vortices and antivortices controlled by magnetic mode amplitude

Phase locking of vortex oscillations to magnetic mode phase

Supported by real-time Hamiltonian field theory simulations

Abstract

Quantum memory is a crucial component of a quantum information processor, just like a classical memory is a necessary ingredient of a conventional computer. Moreover, quantum memory of light would serve as a quantum repeater needed for quantum communication networks. Here we propose to realize the quantum memory coupled to magnetic modes of electromagnetic radiation (e.g. those found in cavities and optical fibers) using vortices in Quantum Hall systems. We describe the response to an external magnetic mode as a quench, and find that it sets an oscillation between vortices and antivortices, with the period controlled by the amplitude of the magnetic mode, and the phase locked to the phase of the magnetic mode. We support our proposal by real-time Hamiltonian field theory simulations.