Superconducting nanowire single-photon detectors for quantum information

You, Lixing

doi:10.1515/nanoph-2020-0186

Cited by 175 publications

(79 citation statements)

References 186 publications

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“…Current QKD systems generally use either high performance single photon avalanche diodes (SPADs) [363,364] or higher performance and higher cost SNSPDs [365,366]. Generally, SNSPDs have lower jitter, can exhibit higher PDEs especially at longer wavelengths (e.g., 1.55 micron), but have trade-off of higher costs, SWaP and lower ease of deployment.…”

Section: Detectorsmentioning

confidence: 99%

Advances in space quantum communications

Sidhu

Joshi

Gündoğan

et al. 2021

IET Quantum Communication

166

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Concerted efforts are underway to establish an infrastructure for a global quantum Internet to realise a spectrum of quantum technologies. This will enable more precise sensors, secure communications, and faster data processing. Quantum communications are a front-runner with quantum networks already implemented in several metropolitan areas. A number of recent proposals have modelled the use of space segments to overcome range limitations of purely terrestrial networks. Rapid progress in the design of quantum devices have enabled their deployment in space for in-orbit demonstrations. We review developments in this emerging area of space-based quantum technologies and provide a roadmap of key milestones towards a complete, global quantum networked landscape. Small satellites hold increasing promise to provide a cost effective coverage required to realise the quantum Internet. The state of art in small satellite missions is reviewed and the most current in-field demonstrations of quantum cryptography are collated. The important challenges in space quantum technologies that must be overcome and recent efforts to mitigate their effects are summarised. A perspective on future developments that would improve the performance of space quantum communications is included. The authors conclude with a discussion on fundamental physics experiments that could take advantage of a global, space-based quantum network.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Detectorsmentioning

confidence: 99%

Advances in space quantum communications

Sidhu

Joshi

Gündoğan

et al. 2021

IET Quantum Communication

166

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“…Choosing between different detector technologies inevitably involves tradeoffs between the parameters described above, this is illustrated by the comparison of detector technologies available in 2011 given in the study by Eisaman et al [51]. Superconducting nanowires (SNs) are a competitive alternative to avalanche diode detectors and offer superior detection efficiency and low dark count rate by comparison [59][60][61]. SNs are usually arranged in parallel, with each nanowire connected in series to a resistor.…”

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confidence: 99%

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Xavier

Jones

et al. 2021

Nanophotonics

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Quantum-enhanced sensing and metrology pave the way for promising routes to fulfil the present day fundamental and technological demands for integrated chips which surpass the classical functional and measurement limits. The most precise measurements of optical properties such as phase or intensity require quantum optical measurement schemes. These non-classical measurements exploit phenomena such as entanglement and squeezing of optical probe states. They are also subject to lower detection limits as compared to classical photodetection schemes. Biosensing with non-classical light sources of entangled photons or squeezed light holds the key for realizing quantum optical bioscience laboratories which could be integrated on chip. Single-molecule sensing with such non-classical sources of light would be a forerunner to attaining the smallest uncertainty and the highest information per photon number. This demands an integrated non-classical sensing approach which would combine the subtle non-deterministic measurement techniques of quantum optics with the device-level integration capabilities attained through nanophotonics as well as nanoplasmonics. In this back drop, we review the underlining principles in quantum sensing, the quantum optical probes and protocols as well as state-of-the-art building blocks in quantum optical sensing. We further explore the recent developments in quantum photonic/plasmonic sensing and imaging together with the potential of combining them with burgeoning field of coupled cavity integrated optoplasmonic biosensing platforms.

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“…The application of single‐photon devices in different areas covers a wide range of wavelengths. [ 41,104,105 ] Additionally, the detection efficiency of SPDs is spectral‐dependent. Thus, it is essential that the developed calibration methods hold their effectiveness over a wide wavelength range.…”

Section: Calibration Methodsmentioning

confidence: 99%

Metrology Perspective of Single‐Photon Detectors: Review on Global Calibration Methods

et al. 2021

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The evolution of quantum standards for SI units and funding support from national governments has led to rapid technological developments in the quantum sciences. With this, new and more powerful quantum optical devices that find applications in several fields are obtained. Single‐photon detectors (SPDs) are considered as a critical element in these emerging technologies. A traceability chain for SPD calibration is required to ensure their performance reliability and quality. Different methods and techniques are being developed worldwide for the calibration of SPDs. In this paper, the developments that have occurred globally in SPD calibration and the uncertainty value achieved until now are summarized along with the scope of possible improvement areas.

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Superconducting nanowire single-photon detectors for quantum information

Cited by 175 publications

References 186 publications

Advances in space quantum communications

Advances in space quantum communications

Quantum nanophotonic and nanoplasmonic sensing: towards quantum optical bioscience laboratories on chip

Metrology Perspective of Single‐Photon Detectors: Review on Global Calibration Methods

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