Detecting single infrared photons with 93% system efficiency
Francesco Marsili,Varun B. Verma,Jeffrey A. Stern,Sean D. Harrington,Adriana E. Lita,Thomas Gerrits,Igor Vayshenker,Burm Baek,M. D. Shaw,Richard P. Mirin,Sae Woo Nam +10 more
TLDR
In this article, a fiber-coupled single-photon detection system using amorphous tungsten silicide superconducting nanowire detectors was developed, and the system detection efficiency was higher than 90% in the wavelength range between 1520 nm and 1610 nm.Abstract:
Researchers develop a fiber-coupled single-photon-detection system using amorphous tungsten silicide superconducting nanowire single-photon detectors. The system detection efficiency is higher than 90% in the wavelength range between 1520 nm and 1610 nm. The device dark-count rate, timing jitter and reset time are 1 cps, 150 ps and 40 ns, respectively.read more
Citations
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InGaAs/InP single-photon detectors with 60% detection efficiency at 1550 nm
TL;DR: In this paper, a high-frequency gating InGaAs/InP single-photon detector with a PDE as high as 60% at 1550 nm is presented.
Posted Content
Physical Security in the Post-quantum Era: A Survey on Side-channel Analysis, Random Number Generators, and Physically Unclonable Functions
TL;DR: The possibility of performing side-channel analysis in the quantum world is discussed and compared to attacks launched in the classic world, and proposals for quantum random number generation and quantum physically unclonable functions are compared to their classic counterparts and further analyzed to give a better understanding of their features, advantages, and shortcomings.
Journal ArticleDOI
Quantum repeaters based on trapped ions with decoherence-free subspace encoding
M. Zwerger,B. P. Lanyon,B. P. Lanyon,Tracy E. Northup,Christine A. Muschik,Wolfgang Dür,Nicolas Sangouard +6 more
TL;DR: In this article, the authors present a quantum repeater scheme aiming to extend the range of present day quantum communications that could be implemented in the near future with trapped ions in cavities.
Journal ArticleDOI
Supercontinuum single-photon detector using multilayer superconducting nanowires
Hao Li,Yong Wang,Lixing You,Heqing Wang,Hui Zhou,Peng Hu,Weijun Zhang,Xiao-Yu Liu,Xiaoyan Yang,Lu Zhang,Zhen Wang,Xiaoming Xie +11 more
TL;DR: In this article, a supercontinuum superconducting nanowire single-photon detector (SNSPD) was proposed to detect single photons over an ultra-broad spectral range from visible to mid-infrared light.
Journal ArticleDOI
Trace-free counterfactual communication with a nanophotonic processor
I. Alonso Calafell,Teodor Strömberg,David R. M. Arvidsson-Shukur,David R. M. Arvidsson-Shukur,Lee A. Rozema,Valeria Saggio,Chiara Greganti,Nicholas C. Harris,Mihika Prabhu,Jacques Carolan,Michael J. Hochberg,T. Baehr-Jones,Dirk Englund,Crispin H. W. Barnes,Philip Walther +14 more
TL;DR: This work implements a new, and fundamentally different, protocol in a programmable nanophotonic processor, based on reconfigurable silicon-on-insulator waveguides that operate at telecom wavelengths, allowing the implementation of counterfactual communication with single photons with a bit error probability below 1%, without post-selection and with a vanishing weak trace.
References
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Quantum Communication
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Invited review article: Single-photon sources and detectors
TL;DR: The current status of single-photon-source and single-Photon-detector technologies operating at wavelengths from the ultraviolet to the infrared are reviewed and applications of these technologies to quantum communication are discussed.