Ultralong Efficient Photon Storage Using Optical Locking

TL;DR

This paper introduces a novel photon storage method leveraging optical locking to achieve ultralong storage times, significantly surpassing traditional limits by exploiting spin population decay physics, advancing quantum communication capabilities.

Contribution

The paper presents a new photon storage technique that extends storage duration by utilizing spin population decay physics, overcoming previous phase decay constraints.

Findings

Achieved photon storage times several orders longer than conventional methods.

Demonstrated the effectiveness of optical locking in quantum memory applications.

Provided insights into spin population decay physics for quantum storage enhancement.

Abstract

For the last decade quantum memories have been intensively studied for potential applications to quantum information and communications using atomic and ionic ensembles. With the importance of a multimode storage capability in quantum memories, on-demand control of reversible inhomogeneous broadening of an optical medium has been broadly investigated recently. However, the photon storage time in these researches is still too short to apply for long-distance quantum communications. In this paper, we demonstrate new physics of spin population decay dependent ultralong photon storage method, where spin population decay time is several orders of magnitude longer than the conventional constraint of spin phase decay time.