Phase-controlled integrated photonic quantum circuits

Smith, Brian J.; Kundys, Dmytro; Thomas-Peter, Nicholas; Smith, Peter G. R.; Walmsley, Ian A.

doi:10.1364/oe.17.013516

Cited by 138 publications

(147 citation statements)

References 46 publications

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“…[14][15][16][17]25 While high fidelity single qubit operations have been demonstrated in this architecture, 17 two photon logic gate operation, including quantum interference, below relevant EPG thresholds has not yet been demonstrated.…”

mentioning

confidence: 97%

High-fidelity operation of quantum photonic circuits

Laing

Peruzzo

Politi

et al. 2010

Applied Physics Letters

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mentioning

confidence: 97%

High-fidelity operation of quantum photonic circuits

Laing

Peruzzo

Politi

et al. 2010

Applied Physics Letters

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“…Integrated quantum optics provides great promise for enabling photonic experiments, which are otherwise generally limited to relatively small-scale experiments, to reach this new regime of complexity. Chip-based fabrication enables sophisticated networks involving multiple interfering pathways in a compact and stable physical architecture, and pioneering work has shown the viability of this approach for the manipulation of the quantum properties of photons [1][2][3][4][5][6][7][8][9][10] . To date, experiments have demonstrated up to three-photon higher-order terms from a single non-linear photon source being coupled into the two input modes of a single interferometer 11 , or alternatively, two-photon correlations in up to 21 waveguide modes 5,12 .…”

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confidence: 99%

Multiphoton quantum interference in a multiport integrated photonic device

et al. 2013

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Increasing the complexity of quantum photonic devices is essential for many optical information processing applications to reach a regime beyond what can be classically simulated, and integrated photonics has emerged as a leading platform for achieving this. Here we demonstrate three-photon quantum operation of an integrated device containing three coupled interferometers, eight spatial modes and many classical and nonclassical interferences. This represents a critical advance over previous complexities and the first on-chip nonclassical interference with more than two photonic inputs. We introduce a new scheme to verify quantum behaviour, using classically characterised device elements and hierarchies of photon correlation functions. We accurately predict the device's quantum behaviour and show operation inconsistent with both classical and bi-separable quantum models. Such methods for verifying multiphoton quantum behaviour are vital for achieving increased circuit complexity. Our experiment paves the way for the next generation of integrated photonic quantum simulation and computing devices.

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“…Hence, the stage of integrated quantum photonics research is now moving to hybrid integration on a chip. Among the building blocks, quantum circuits can be realized by using integrated waveguides with cores made of silicon [18,108,110], GaAs [111], or silica-based materials [1,10,13,112]. Of these approaches, silica-based waveguide technology has realized planar lightwave circuits with a significantly large scale for classical optical communication [113,114]; this capability will facilitate the construction of large-scale quantum circuits.…”

Section: On-chip Quantum Buffermentioning

confidence: 99%

Generation and manipulation of entangled photons on silicon chips

Matsuda

Takesue²

2016

Nanophotonics

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Integrated quantum photonics is now seen as one of the promising approaches to realize scalable quantum information systems. With optical waveguides based on silicon photonics technologies, we can realize quantum optical circuits with a higher degree of integration than with silica waveguides. In addition, thanks to the large nonlinearity observed in silicon nanophotonic waveguides, we can implement active components such as entangled photon sources on a chip. In this paper, we report recent progress in integrated quantum photonic circuits based on silicon photonics. We review our work on correlated and entangled photon-pair sources on silicon chips, using nanoscale silicon waveguides and silicon photonic crystal waveguides. We also describe an on-chip quantum buffer realized using the slow-light effect in a silicon photonic crystal waveguide. As an approach to combine the merits of different waveguide platforms, a hybrid quantum circuit that integrates a silicon-based photon-pair source and a silica-based arrayed waveguide grating is also presented.

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Phase-controlled integrated photonic quantum circuits

Cited by 138 publications

References 46 publications

High-fidelity operation of quantum photonic circuits

High-fidelity operation of quantum photonic circuits

Multiphoton quantum interference in a multiport integrated photonic device

Generation and manipulation of entangled photons on silicon chips

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