Phase Locking between Two All-Optical Quantum Memories

被引：2

作者：

Okamoto, Fumiya ^{[1
]}

Endo, Mamoru ^{[1
]}

Matsuyama, Mikihisa ^{[1
]}

Ishizuka, Yuya ^{[1
]}

Liu, Yang ^{[2
]}

Sakakibara, Rei ^{[1
]}

Hashimoto, Yosuke ^{[1
]}

Yoshikawa, Jun-ichi ^{[1
]}

van Loock, Peter ^{[3
]}

Furusawa, Akira ^{[1
]}

机构：

[1] Univ Tokyo, Sch Engn, Dept Appl Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Inst Optoelect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Japan

[3] Johannes Gutenberg Univ Mainz, Inst Phys, Staudingerweg 7, D-55099 Mainz, Germany

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 26期

关键词：

GENERATION;

D O I：

10.1103/PhysRevLett.125.260508

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Optical approaches to quantum computation require the creation of multimode photonic quantum states in a controlled fashion. Here we experimentally demonstrate phase locking of two all-optical quantum memories, based on a concatenated cavity system with phase reference beams, for the time-controlled release of two-mode entangled single-photon states. The release time for each mode can be independently determined. The generated states are characterized by two-mode optical homodyne tomography. Entanglement and nonclassicality are preserved for release-time differences up to 400 ns, confirmed by logarithmic negativities and Wigner-function negativities, respectively.

引用

页数：6

共 31 条

[1] Universal quantum computation with temporal-mode bilayer square lattices
Alexander, Rafael N.
Yokoyama, Shota
Furusawa, Akira
Menicucci, Nicolas C.
[J]. PHYSICAL REVIEW A, 2018, 97 (03)
[2] Asavanant W., ARXIV200611537
[3] Generation of time-domain-multiplexed two-dimensional cluster state
Asavanant, Warit
Shiozawa, Yu
Yokoyama, Shota
Charoensombutamon, Baramee
Emura, Hiroki
Alexander, Rafael N.
Takeda, Shuntaro
Yoshikawa, Jun-ichi
Menicucci, Nicolas C.
Yonezawa, Hidehiro
Furusawa, Akira
[J]. SCIENCE, 2019, 366 (6463) : 373 - +
[4] Quantum error correction against photon loss using NOON states
Bergmann, Marcel
van Loock, Peter
[J]. PHYSICAL REVIEW A, 2016, 94 (01)
[5] Homodyne Tomography of a Single Photon Retrieved on Demand from a Cavity-Enhanced Cold Atom Memory
Bimbard, Erwan
Boddeda, Rajiv
Vitrant, Nicolas
Grankin, Andrey
Parigi, Valentina
Stanojevic, Jovica
Ourjoumtsev, Alexei
Grangier, Philippe
[J]. PHYSICAL REVIEW LETTERS, 2014, 112 (03)
[6] Quantum Storage of Single-Photon and Two-Photon Fock States with an All-Optical Quantum Memory
Bouillard, M.
Boucher, G.
Ortas, J. Ferrer
Pointard, B.
Tualle-Brouri, R.
[J]. PHYSICAL REVIEW LETTERS, 2019, 122 (21)
[7] Bosonic quantum codes for amplitude damping
Chuang, IL
Leung, DW
Yamamoto, Y
[J]. PHYSICAL REVIEW A, 1997, 56 (02) : 1114 - 1125
[8] Quantum storage of photonic entanglement in a crystal
Clausen, Christoph
Usmani, Imam
Bussieres, Felix
Sangouard, Nicolas
Afzelius, Mikael
de Riedmatten, Hugues
Gisin, Nicolas
[J]. NATURE, 2011, 469 (7331) : 508 - U79
[9] Eisert J., 2001, THESIS
[10] Encoding a qubit in an oscillator
Gottesman, D
Kitaev, A
Preskill, J
[J]. PHYSICAL REVIEW A, 2001, 64 (01): : 123101 - 1231021

← 1 2 3 4 →