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  Location: Home >  Research Activities >  Seminar
Intra-city quantum communication via thermal microwave networks
2016-12-28     Text Size:  A

Institute of Theoretical Physics

Chinese Academy of Sciences

 Key Laboratory of Theoretical Physics

Seminar

Title

题目

Intra-city quantum communication via thermal microwave networks

Speaker

报告人

Dr. Ze-Liang Xiang

Affiliation

所在单位

Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Austria

Date

日期

2:00pm, Dec 28th (Wed), 2016

Venue

地点

ITP NEW BUILDING 6420

Abstract

摘要

Communication over proven-secure quantum channels is potentially one of the most wide-ranging applications of currently developed quantum technologies. It is generally envisioned that in future quantum networks, separated nodes containing stationary solid-state or atomic qubits are connected via the exchange of optical photons over large distances. In this work we explore an intriguing alternative for quantum communication via all-microwave networks. To make this possible, we describe a general protocol for sending quantum states through thermal channels, even when the number of thermal photons in the channel is much larger than one. The protocol can be implemented with state-of-the-art superconducting circuits and enables the transfer of quantum states over distances of ~ 100 m via microwave transmission lines cooled to only T = 4K. This opens up completely new possibilities for quantum communication within and across buildings, and consequently, for the implementation of intra-city quantum networks based on microwave technology only.

Contact Person

联系人

Ying-Dan Wang
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