Quantum Teleportation between Remote Qubit Memories with Only a Single Photon as a Resource

被引：40

作者：

Langenfeld, Stefan ^{[1
]}

Welte, Stephan ^{[1
]}

Hartung, Lukas ^{[1
]}

Daiss, Severin ^{[1
]}

Thomas, Philip ^{[1
]}

Morin, Olivier ^{[1
]}

Distante, Emanuele ^{[1
]}

Rempe, Gerhard ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 13期

基金：

欧盟地平线“2020”;

关键词：

STATE;

D O I：

10.1103/PhysRevLett.126.130502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum teleportation enables the deterministic exchange of qubits via lossy channels. While it is commonly believed that unconditional teleportation requires a preshared entangled qubit pair, here we demonstrate a protocol that is in principle unconditional and requires only a single photon as an ex-ante prepared resource. The photon successively interacts, first, with the receiver and then with the sender qubit memory. Its detection, followed by classical communication, heralds a successful teleportation. We teleport six mutually unbiased qubit states with average fidelity (F) over bar= (88.3 +/- 1.3)% at a rate of 6 Hz over 60 m.

引用

页数：6

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