Ultrabright Entangled-Photon-Pair Generation from an Al Ga As -On-Insulator Microring Resonator
Trevor J. Steiner,Joshua E. Castro,Lin Chang,Quynh Dang,Weiqiang Xie,Justin Norman,John E. Bowers,Galan Moody +7 more
- Vol. 2, Iss: 1, pp 010337
TLDR
In this article, an on-chip entangled-photon pair source from an AlGaAs-on-insulator microring resonator is demonstrated, offering a nearly 1000-fold improvement over state-of-the-art brightness while maintaining g97% fidelity and g99% purity.Abstract:
An on-chip entangled-photon pair source from an AlGaAs-on-insulator microring resonator is demonstrated, offering a nearly 1000-fold improvement over state-of-the-art brightness while maintaining g97% fidelity and g99% purity.read more
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References
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New high-intensity source of polarization-entangled photon pairs.
Paul G. Kwiat,Klaus Mattle,Harald Weinfurter,Anton Zeilinger,Alexander V. Sergienko,Yanhua Shih +5 more
TL;DR: Type-II noncollinear phase matching in parametric down conversion produces true entanglement: No part of the wave function must be discarded, in contrast to previous schemes.
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Experimental Consequences of Objective Local Theories
John F. Clauser,Michael A. Horne +1 more
TL;DR: In this article, a broad class of theories called "objective local theories" are defined, motivation for considering these theories is given, and experimental consequences of the class are investigated.
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Significant-Loophole-Free Test of Bell's Theorem with Entangled Photons
Marissa Giustina,Marissa Giustina,Marijn A. M. Versteegh,Marijn A. M. Versteegh,Soeren Wengerowsky,Soeren Wengerowsky,Johannes Handsteiner,Johannes Handsteiner,Armin Hochrainer,Armin Hochrainer,Kevin Phelan,Fabian Steinlechner,Johannes Kofler,Jan-Åke Larsson,Carlos Abellan,Waldimar Amaya,Valerio Pruneri,Valerio Pruneri,Morgan W. Mitchell,Morgan W. Mitchell,Joern Beyer,Thomas Gerrits,Adriana E. Lita,Lynden K. Shalm,Sae Woo Nam,Thomas Scheidl,Thomas Scheidl,Rupert Ursin,Bernhard Wittmann,Bernhard Wittmann,Anton Zeilinger,Anton Zeilinger +31 more
TL;DR: A Bell test is reported that closes the most significant of loopholes that provide loopholes for a local realist explanation of quantum mechanics, using a well-optimized source of entangled photons, rapid setting generation, and highly efficient superconducting detectors.
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Satellite-to-ground quantum key distribution
Sheng-Kai Liao,Wen-Qi Cai,Wei-Yue Liu,Liang Zhang,Yang Li,Ji-Gang Ren,Juan Yin,Qi Shen,Yuan Cao,Zheng-Ping Li,Feng-Zhi Li,X. H. Chen,Lihua Sun,Jianjun Jia,Wu Jincai,Xiao-Jun Jiang,Jianfeng Wang,Yongmei Huang,Qiang Wang,Zhou Yilin,Deng Lei,Tao Xi,Lu Ma,Tai Hu,Qiang Zhang,Yu-Ao Chen,Nai-Le Liu,Xiang-Bin Wang,Zhen-Cai Zhu,Chao-Yang Lu,Rong Shu,Rong Shu,Cheng-Zhi Peng,Jianyu Wang,Jianyu Wang,Jian-Wei Pan +35 more
TL;DR: This work reports the development and launch of a low-Earth-orbit satellite for implementing decoy-state QKD—a form ofQKD that uses weak coherent pulses at high channel loss and is secure because photon-number-splitting eavesdropping can be detected.