This article is cited in 6 papers

Reviews (based on the materials of the XLVII Vavilov Readings on Luminescence, Moscow, April 12, 2023)

Quantum repeaters: Current developments and prospects

A. A. Kalachev

Federal Research Center Kazan Scientific Center of the Russian Academy of Sciences, 420111, Kazan, Russia

Abstract: We describe principles of operation of a quantum repeater, i.e., a device designed to distribute entangled states of quantum systems over long distances. A review is presented of the latest achievements in the field of experimental implementation of its simplest version (a first-generation quantum repeater) and in the development of its key component (quantum memory). The immediate and long-term prospects for the development of studies in this area are discussed.

Keywords: quantum communication, quantum repeater, quantum memory, entangled states.

Received: 10.10.2023

 English version: Quantum Electronics, 2023, 50:suppl. 12, S1312–S1329