Universal linear optics
Jacques Carolan,Chris Harrold,Chris Sparrow,Chris Sparrow,Enrique Martin-Lopez,Nicholas Russell,Joshua W. Silverstone,Peter Shadbolt,Nobuyuki Matsuda,Manabu Oguma,Mikitaka Itoh,Graham D. Marshall,Mark G. Thompson,Jonathan C. F. Matthews,Toshikazu Hashimoto,Jeremy L. O'Brien,Anthony Laing +16 more
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TLDR
In this paper, a sixmode universal system consisting of a cascade of 15 Mach-Zehnder interferometers with 30 thermo-optic phase shifters integrated into a single photonic chip was demonstrated.Abstract:
Linear optics underpins fundamental tests of quantum mechanics and quantum technologies. We demonstrate a single reprogrammable optical circuit that is sufficient to implement all possible linear optical protocols up to the size of that circuit. Our six-mode universal system consists of a cascade of 15 Mach-Zehnder interferometers with 30 thermo-optic phase shifters integrated into a single photonic chip that is electrically and optically interfaced for arbitrary setting of all phase shifters, input of up to six photons, and their measurement with a 12-single-photon detector system. We programmed this system to implement heralded quantum logic and entangling gates, boson sampling with verification tests, and six-dimensional complex Hadamards. We implemented 100 Haar random unitaries with an average fidelity of 0.999 ± 0.001. Our system can be rapidly reprogrammed to implement these and any other linear optical protocol, pointing the way to applications across fundamental science and quantum technologies.read more
Citations
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Journal ArticleDOI
Setting up meshes of interferometers – reversed local light interference method
TL;DR: This work allows a broad category of optical networks to be set up progressively and automatically, including correcting for fabrication imprecision, and null interference locally in the network based on inputs calculated by considering the network operated in reverse.
Journal ArticleDOI
Observation of ten-photon entanglement using thin BiB 3 O 6 crystals
Luo-Kan Chen,Zheng-Da Li,Xing-Can Yao,Miao Huang,Wei Li,He Lu,Xiao Yuan,Yanbao Zhang,Xiao Jiang,Cheng-Zhi Peng,Li Li,Nai-Le Liu,Xiongfeng Ma,Chao-Yang Lu,Yu-Ao Chen,Jian-Wei Pan +15 more
TL;DR: In this paper, the authors reported the experimental realization of a ten-photon Greenberger-Horne-Zeilinger state using thin BiB3O6 crystals, demonstrating a genuine entanglement with a standard deviation of 3.6σ.
Journal ArticleDOI
All-optical mode unscrambling on a silicon photonic chip
Francesco Morichetti,Andrea Melloni,Nicola Peserico,Emanuele Guglielmi,Marco Carminati,Marc Sorel,Giorgio Ferrari,Andrea Annoni,Pietro Ciccarella,Stefano Grillanda +9 more
TL;DR: In this paper, a mesh of silicon photonics Mach-Zehnder interferometers is used to self-configure and reset itself after significantly perturbing the mixing, without turning off the beams.
Journal ArticleDOI
MEMS-Enabled Silicon Photonic Integrated Devices and Circuits
Niels Quack,Hamed Sattari,Alain Yuji Takabayashi,Yu Zhang,Peter Verheyen,Wim Bogaerts,Pierre Edinger,Carlos Errando-Herranz,Kristinn B. Gylfason +8 more
TL;DR: MEMS-enabled components are integrated in a simplified silicon photonics process based on IMEC’s Standard iSiPP50G Silicon Photonics Platform and a custom release process to reduce power consumption and enhance functionality in photonic integrated circuits.
Journal ArticleDOI
Robust Architecture for Programmable Universal Unitaries.
M. Yu. Saygin,I. V. Kondratyev,I. V. Dyakonov,S. A. Mironov,S. A. Mironov,Stanislav Straupe,Sergei P. Kulik +6 more
TL;DR: It is shown that the scheme is universal even when the block's transfer matrices are chosen at random, making it virtually insensitive to errors, and the placement of the variable elements can be arbitrary, so that the Scheme is not bound to specific topologies.
References
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Book
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TL;DR: In this article, the quantum Fourier transform and its application in quantum information theory is discussed, and distance measures for quantum information are defined. And quantum error-correction and entropy and information are discussed.
Quantum Computation and Quantum Information
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TL;DR: It is shown that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors and are robust against errors from photon loss and detector inefficiency.
Journal ArticleDOI
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