Coherent Spin Control at the Quantum Level in an Ensemble-Based Optical Memory

被引：138

作者：

Jobez, Pierre ^{[1
]}

Laplane, Cyril ^{[1
]}

Timoney, Nuala ^{[1
]}

Gisin, Nicolas ^{[1
]}

Ferrier, Alban ^{[2
,3
]}

Goldner, Philippe ^{[2
]}

Afzelius, Mikael ^{[1
]}

机构：

[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland

[2] PSL Res Univ, Chim ParisTech, CNRS, Inst Rech Chim Paris, F-75005 Paris, France

[3] Univ Paris 06, Sorbonne Univ, F-75005 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 23期

关键词：

QUBIT;

D O I：

10.1103/PhysRevLett.114.230502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Long-lived quantum memories are essential components of a long-standing goal of remote distribution of entanglement in quantum networks. These can be realized by storing the quantum states of light as single-spin excitations in atomic ensembles. However, spin states are often subjected to different dephasing processes that limit the storage time, which in principle could be overcome using spin-echo techniques. Theoretical studies suggest this to be challenging due to unavoidable spontaneous emission noise in ensemble-based quantum memories. Here, we demonstrate spin-echo manipulation of a mean spin excitation of 1 in a large solid-state ensemble, generated through storage of a weak optical pulse. After a storage time of about 1 ms we optically read-out the spin excitation with a high signal-to-noise ratio. Our results pave the way for long-duration optical quantum storage using spin-echo techniques for any ensemble-based memory.

引用

页数：5

共 40 条

[31]

Radnaev AG, 2010, NAT PHYS, V6, P894, DOI [10.1038/NPHYS1773, 10.1038/nphys1773]

[32] Quantum Storage of Heralded Single Photons in a Praseodymium-Doped Crystal [J].

Rielaender, Daniel ;

Kutluer, Kutlu ;

Ledingham, Patrick M. ;

Guendogan, Mustafa ;

Fekete, Julia ;

Mazzera, Margherita ;

de Riedmatten, Hugues .

PHYSICAL REVIEW LETTERS, 2014, 112 (04)

[33] Efficient Quantum Memory Using a Weakly Absorbing Sample [J].

Sabooni, Mahmood ;

Li, Qian ;

Kroll, Stefan ;

Rippe, Lars .

PHYSICAL REVIEW LETTERS, 2013, 110 (13)

[34] Broadband waveguide quantum memory for entangled photons [J].

Saglamyurek, Erhan ;

Sinclair, Neil ;

Jin, Jeongwan ;

Slater, Joshua A. ;

Oblak, Daniel ;

Bussieres, Felix ;

George, Mathew ;

Ricken, Raimund ;

Sohler, Wolfgang ;

Tittel, Wolfgang .

NATURE, 2011, 469 (7331) :512-515

[35] Quantum repeaters based on atomic ensembles and linear optics [J].

Sangouard, Nicolas ;

Simon, Christoph ;

de Riedmatten, Hugues ;

Gisin, Nicolas .

REVIEWS OF MODERN PHYSICS, 2011, 83 (01) :33-80

[36] Robust Dynamical Decoupling for Quantum Computing and Quantum Memory [J].

Souza, Alexandre M. ;

Alvarez, Gonzalo A. ;

Suter, Dieter .

PHYSICAL REVIEW LETTERS, 2011, 106 (24)

[37] A single-atom quantum memory [J].

Specht, Holger P. ;

Nolleke, Christian ;

Reiserer, Andreas ;

Uphoff, Manuel ;

Figueroa, Eden ;

Ritter, Stephan ;

Rempe, Gerhard .

NATURE, 2011, 473 (7346) :190-193

[38] Single-photon-level optical storage in a solid-state spin-wave memory [J].

Timoney, N. ;

Usmani, I. ;

Jobez, P. ;

Afzelius, M. ;

Gisin, N. .

PHYSICAL REVIEW A, 2013, 88 (02)

[39] Long Lifetime and High-Fidelity Quantum Memory of Photonic Polarization Qubit by Lifting Zeeman Degeneracy [J].

Xu, Zhongxiao ;

Wu, Yuelong ;

Tian, Long ;

Chen, Lirong ;

Zhang, Zhiying ;

Yan, Zhihui ;

Li, Shujing ;

Wang, Hai ;

Xie, Changde ;

Peng, Kunchi .

PHYSICAL REVIEW LETTERS, 2013, 111 (24)

[40] Optically addressable nuclear spins in a solid with a six-hour coherence time [J].

Zhong, Manjin ;

Hedges, Morgan P. ;

Ahlefeldt, Rose L. ;

Bartholomew, John G. ;

Beavan, Sarah E. ;

Wittig, Sven M. ;

Longdell, Jevon J. ;

Sellars, Matthew J. .

NATURE, 2015, 517 (7533) :177-+

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