Realizing a deterministic source of multipartite-entangled photonic qubits

被引：60

作者：

Besse, Jean-Claude ^{[1
]}

Reuer, Kevin ^{[1
]}

Collodo, Michele C. ^{[1
]}

Wulff, Arne ^{[1
]}

Wernli, Lucien ^{[1
]}

Copetudo, Adrian ^{[1
]}

Malz, Daniel ^{[2
,3
]}

Magnard, Paul ^{[1
]}

Akin, Abdulkadir ^{[1
]}

Gabureac, Mihai ^{[1
]}

Norris, Graham J. ^{[1
]}

Cirac, J. Ignacio ^{[2
,3
]}

Wallraff, Andreas ^{[1
,4
]}

Eichler, Christopher ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Dept Phys, CH-8093 Zurich, Switzerland

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

[3] Munich Ctr Quantum Sci & Technol, Schellingstr 4, D-80799 Munich, Germany

[4] Swiss Fed Inst Technol, Quantum Ctr, CH-8093 Zurich, Switzerland

来源：

NATURE COMMUNICATIONS | 2020年 / 11卷 / 01期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

QUANTUM; GENERATION; STATES;

D O I：

10.1038/s41467-020-18635-x

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Sources of entangled electromagnetic radiation are a cornerstone in quantum information processing and offer unique opportunities for the study of quantum many-body physics in a controlled experimental setting. Generation of multi-mode entangled states of radiation with a large entanglement length, that is neither probabilistic nor restricted to generate specific types of states, remains challenging. Here, we demonstrate the fully deterministic generation of purely photonic entangled states such as the cluster, GHZ, and W state by sequentially emitting microwave photons from a controlled auxiliary system into a waveguide. We tomographically reconstruct the entire quantum many-body state for up to N = 4 photonic modes and infer the quantum state for even larger N from process tomography. We estimate that localizable entanglement persists over a distance of approximately ten photonic qubits.

引用

页数：6

共 35 条

[1]

Abrams D.M., 2019, Implementation of the XY interaction family with calibration of single pulse

[2]

Cirac I., 2013, LECT NOTES LES HOUCH, V94, P161

[3] Observation of the Crossover from Photon Ordering to Delocalization in Tunably Coupled Resonators [J].

Collodo, Michele C. ;

Potocnik, Anton ;

Gasparinetti, Simone ;

Besse, Jean-Claude ;

Pechal, Marek ;

Sameti, Mahdi ;

Hartmann, Michael J. ;

Wallraff, Andreas ;

Eichler, Christopher .

PHYSICAL REVIEW LETTERS, 2019, 122 (18)

[4]

Dür W, 2001, PHYS REV A, V63, DOI 10.1103/PhysRevA.63.020303

[5] Experimental realization of a three-qubit entangled W state -: art. no. 077901 [J].

Eibl, M ;

Kiesel, N ;

Bourennane, M ;

Kurtsiefer, C ;

Weinfurter, H .

PHYSICAL REVIEW LETTERS, 2004, 92 (07)

[6] Exploring Interacting Quantum Many-Body Systems by Experimentally Creating Continuous Matrix Product States in Superconducting Circuits [J].

Eichler, C. ;

Mlynek, J. ;

Butscher, J. ;

Kurpiers, P. ;

Hammerer, K. ;

Osborne, T. J. ;

Wallraff, A. .

PHYSICAL REVIEW X, 2015, 5 (04)

[7]

Foxen B., 2020, DEMONSTRATING CONTIN

[8] Observation of Entangled States of a Fully Controlled 20-Qubit System [J].

Friis, Nicolai ;

Marty, Oliver ;

Maier, Christine ;

Hempel, Cornelius ;

Holzaepfel, Milan ;

Jurcevic, Petar ;

Plenio, Martin B. ;

Huber, Marcus ;

Roos, Christian ;

Blatt, Rainer ;

Lanyon, Ben .

PHYSICAL REVIEW X, 2018, 8 (02)

[9] Deterministic Generation of Large-Scale Entangled Photonic Cluster State from Interacting Solid State Emitters [J].

Gimeno-Segovia, Mercedes ;

Rudolph, Terry ;

Economou, Sophia E. .

PHYSICAL REVIEW LETTERS, 2019, 123 (07)

[10] Quantum communication [J].

Gisin, Nicolas ;

Thew, Rob .

NATURE PHOTONICS, 2007, 1 (03) :165-171

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