V
Varun B. Verma
Researcher at National Institute of Standards and Technology
Publications - 224
Citations - 11111
Varun B. Verma is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Photon & Nanowire. The author has an hindex of 47, co-authored 213 publications receiving 8931 citations. Previous affiliations of Varun B. Verma include University of Illinois at Urbana–Champaign.
Papers
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Journal ArticleDOI
Strong Loophole-Free Test of Local Realism.
Lynden K. Shalm,Evan Meyer-Scott,Bradley G. Christensen,Peter Bierhorst,Michael A. Wayne,Michael A. Wayne,Martin J. Stevens,Thomas Gerrits,Scott Glancy,Deny R. Hamel,Michael S. Allman,Kevin J. Coakley,Shellee D. Dyer,Carson Hodge,Adriana E. Lita,Varun B. Verma,Camilla Lambrocco,Edward Tortorici,Alan L. Migdall,Yanbao Zhang,Daniel Kumor,William H. Farr,Francesco Marsili,Matthew D. Shaw,Jeffrey A. Stern,Carlos Abellan,Waldimar Amaya,Valerio Pruneri,Thomas Jennewein,Morgan W. Mitchell,Paul G. Kwiat,Joshua C. Bienfang,Richard P. Mirin,Emanuel Knill,Sae Woo Nam +34 more
TL;DR: In this paper, the authors present a loophole-free violation of local realism using entangled photon pairs, ensuring that all relevant events in their Bell test are spacelike separated by placing the parties far enough apart and by using fast random number generators and high-speed polarization measurements.
Journal ArticleDOI
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
TL;DR: 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.
Detecting Single Infrared Photons with 93% System Efficiency: Supplementary Information
Francesco Marsili,Varun B. Verma,Jeffrey A. Stern,Sean D. Harrington,Adriana E. Lita,Thomas Gerrits,Igor Vayshenker,Burm Baek,M. D. Shaw,R. P. Mirin,S. W. Nam +10 more
TL;DR: In this paper, 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.
Journal ArticleDOI
Demonstration of sub-3 ps temporal resolution with a superconducting nanowire single-photon detector
Boris Korzh,Qing-Yuan Zhao,Jason P. Allmaras,Simone Frasca,Travis M. Autry,Eric Bersin,Eric Bersin,Andrew D. Beyer,Ryan M. Briggs,B. Bumble,Marco Colangelo,Garrison M. Crouch,Andrew E. Dane,Thomas Gerrits,Adriana E. Lita,Francesco Marsili,Galan Moody,Cristian Pena,Cristian Pena,Edward Ramirez,Edward Ramirez,Jake D. Rezac,Neil Sinclair,Martin J. Stevens,Angel E. Velasco,Varun B. Verma,Emma E. Wollman,Si Xie,Di Zhu,Paul D. Hale,Maria Spiropulu,Kevin L. Silverman,Richard P. Mirin,Sae Woo Nam,A. G. Kozorezov,Matthew D. Shaw,Karl K. Berggren +36 more
TL;DR: In this paper, the authors investigated the detection latency of superconducting nanowire single-photon detectors (SNSPDs) and showed that the key to achieving low timing jitter is the use of materials with low latency.
Journal ArticleDOI
Nanophotonic rare-earth quantum memory with optically controlled retrieval.
Tian Zhong,Jonathan M. Kindem,John G. Bartholomew,Jake Rochman,Ioana Craiciu,Evan Miyazono,Marco Bettinelli,Enrico Cavalli,Varun B. Verma,Sae Woo Nam,Francesco Marsili,Matthew D. Shaw,Andrew D. Beyer,Andrei Faraon +13 more
TL;DR: A high-fidelity nanophotonic quantum memory based on a mesoscopic neodymium ensemble coupled to a photonic crystal cavity that is integrable with other chip-scale photon source and detector devices for multiplexed quantum and classical information processing at the network nodes.