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Search Publications

NIST Authors in Bold

Displaying 576 - 600 of 9848

Electron-Phonon Scattering in Quantum Wires Exposed to a Perpendicular Magnetic Field

October 12, 2021
Author(s)
M Aghasyan, S M. Badalyan, Garnett W. Bryant
… of test electron and electron temperature relaxation in quantum wires due to acoustical and optical phonon scattering … electron subband wave functions, the scattering rates in quantum wires under different environments are calculated. In … electron-phonon scattering, quantum wires …

Symmetry breaking and error correction in open quantum systems

December 8, 2020
Author(s)
Simon K. Lieu, Ron Belyansky, Jeremy T. Young, Rex Lundgren, Victor Albert, Alexey Gorshkov
… transitions are a well-understood phenomenon of closed quantum systems in quantum optics, condensed matter, and high energy physics. … open quantum systems, non-equilibrium phase transitions, quantum error correction … Symmetry breaking and error correction in open quantum systems …

Field-induced Quantum Fluctuations in the Heavy Fermion Superconductor CeCu 2 Ge 2

October 13, 2011
Author(s)
Deepak Singh, A. Thamizhavel, Jeffrey W. Lynn, S. K. Dhar, Jose A. Rodriguez, Tobias K Herman
… Quantum-mechanical fluctuations in strongly correlated … Here we report the discovery of a field-tuned quantum critical phenomenon in stoichiometric CeCu 2 Ge 2 , a … 10 GPa of applied pressure. Our finding of the associated quantum critical spin fluctuations of the antiferromagnetic …

Experimental test of an event-based corpuscular model modification as an alternative to quantum mechanics

February 13, 2013
Author(s)
Giorgio Brida, Ivo P. Degiovanni, Marco Genovese, Alan L. Migdall, Fabrizio Piacentini, Sergey Polyakov, Paola Traina
… (EBCM)9) of the interaction of photons with matter and quantum mechanics. The test looks at the interference that … source,12) agree with the predictions of standard quantum mechanics and falsify the EBCM … quantum mechanics, single photon, hidden variable, fundamental test, quantum information, realism, non locality …

Light-induced fractional quantum hall phases in graphene

December 15, 2017
Author(s)
Michael Gullans, Areg Ghazaryan, Pouyan Ghaemi, Mohammad Hafezi
… We show how to realize two-component fractional quantum Hall phases in monolayer graphene by optically … as well as the control of phase transitions, in graphene quantum Hall systems using optical elds and integrated … graphene, quantum hall, anyons … Light-induced fractional quantum hall phases in graphene …

Electronic Enhancement of the Exciton Coherence Time in Charged Quantum Dots

October 19, 2015
Author(s)
Galan A. Moody, Corey A. McDonald, Ari D. Feldman, Todd E. Harvey, Richard P. Mirin, Kevin L. Silverman
… Minimizing decoherence due to coupling of a quantum system to its fluctuating environment is at the forefront of quantum information and photonics research. Nature sets the … coherence time of the charged exciton transition in quantum dots embedded in a photonic waveguide. By …

Low Noise Amplification of a Continuous Variable Quantum State

June 29, 2009
Author(s)
Raphael C. Pooser, Alberto M. Marino, Vincent Boyer, Kevin M. Jones, Paul D. Lett
… mixing interaction in hot Rb vapor. Performance near the quantum limit for a range of amplifier gains, including near … Such low-noise amplifiers are essential for so called quantum cloning machines and are useful in quantum information protocols. We demonstrate that …

Screen Saver Science: Realizing Distributed Parallel Computing with Jini and JavaSpaces

December 27, 2002
Author(s)
William L. George, Jake H. Scott
… software required. Unlike other existing distributed computing environments, such as SETI@Home, SSS allows the … distributed computing, high-throughput computing, Java, JavaSpaces, Jini, parallel programming … Screen Saver Science: Realizing Distributed Parallel Computing with Jini and JavaSpaces …

Probing Quantum Nanostructures with Near-Field Optical Microscopy and [Vice Versa]

February 1, 1998
Author(s)
Garnett W. Bryant
… how near-field optical microscopy can be used to probe quantum nanostructures. Calculations are done for a quantum dot. Results for different tip/dot configurations and … nanostructure, optical spectroscopy, quantum dot … Probing Quantum Nanostructures with Near-Field Optical Microscopy and …

A Quantum Model of Thermodynamic Mechanical Oscillators

June 2, 2016
Author(s)
Jacob M. Taylor, Chiao-Hsuan Wang
… We present a quantum mechanical model of a bath of spins coupled to the … investigation of non-equilibrium resonator states in the quantum domain. We find our model emerges naturally in … Quantum spring, mechanical resonator, two level fluctuations, … A Quantum Model of Thermodynamic Mechanical Oscillators …

Clock synchronization characterization of the Washington DC metropolitan quantum network (DC-QNet)

October 16, 2024
Author(s)
Wayne McKenzie, Anne Marie Richards, Shirali Patel, Thomas Gerrits, T. G., Steven Peil, Adam Black, David Tulchinsky, Alexander Hastings, YaShian Li-Baboud, Anouar Rahmouni, Paulina Kuo, Alan Mink, Ivan Burenkov, Yicheng Shi, Matthew Diaz, Nijil Lal Cheriya Koyyottummal, Mheni Merzouki, Pranish Shrestha, Alejandro Rodriguez Perez, Eleanya Onuma, Daniel Jones, Atiyya Davis, Thomas A. Searles, J.D. Whalen, Kate Collins, Qudsia Quraishi, La Vida Cooper, Harry Shaw, Bruce Crabill, Oliver Slattery, Abdella Battou
… Quantum networking protocols relying on interference and … two optical time transfer methods in a metropolitan-scale quantum networking research testbed. With active electronic … for enabling experimental research in developing practical quantum networking protocols. …

Continuum of magnetic excitations in the Kitaev honeycomb iridate D3LiIr2O6

March 29, 2025
Author(s)
Thomas Halloran, Yishu Wang, Kemp Plumb, M. B. Stone, Barry Winn, M. K. Graves-Brook, Jose Rodriguez Rivera, Yiming Qiu, Prashant Chauhan, Johannes Knolle, Roderich Moessner, N. Armitage, Tomohiro Takayama, Hidenori Takagi, Collin L. Broholm
… likely plays an important role in stabilizing the low T quantum fluctuating state1,2. … npj Quantum Materials … Magnetism, Neutron Scattering, Quantum spin liquid, Kitaev spin liquid, Iridates …

The Spin Hall Effect in a Quantum Gas

June 13, 2013
Author(s)
Matthew C. Beeler, Ross A. Williams, Karina K. Jimenez Garcia, Lindsay J. LeBlanc, Abigail R. Perry, Ian B. Spielman
… angular momentum, an internal degree of freedom present in quantum particles that can usually be either “up” or “down”. … dielectric junctions [7]; and now for the first time in quantum gases moving through an optical field. By engineering … a spatially inhomogenous spin-orbit coupling field for our quantum gas, we explicitly introduce and measure the req- …

Neuromorphic computing with nanoscale spintronic oscillators

July 26, 2017
Author(s)
Jacob Torrejon, Mathieu Riou, Flavio Abreu Araujo, Sumito Tsunegi, Guru Khalsa, Damien Querlioz, Paolo Bortolotti, Vincent Cros, K. Yakushiji, Akio Fukushima, Hitoshi Kubota, Shinji Yuasa, Mark D. Stiles, Julie Grollier
… behavior to realize high density, low power neuromorphic computing requires coupling huge numbers of nanoscale … there is no proof of concept today of neuromorphic computing with nanoscale oscillators. Indeed, nanodevices … neuromorphic computing, reservoir computing, magnetic tunnel junction, …

Polarization dependent photoluminescence of elliptical quantum dots defined by lithographic patterning

June 15, 2011
Author(s)
Varun B. Verma, Martin J. Stevens, Kevin L. Silverman, Neville Dias, Akash Garg, James J. Coleman, Richard P. Mirin
… of elliptically shaped lithographically patterned quantum dots fabricated using a wet etching and regrowth … that the dipole moment of the ground state of elliptical quantum dots is predominantly aligned with the major axis of … quantum dot, polarization, single photon …

Algorithms and Data Structures for New Models of Computation

February 1, 2021
Author(s)
Paul Black, David W. Flater, Irena Bojanova
… know of real-world constraints and new models of computation and use them to design effective algorithms and … Algorithms and Data Structures for New Models of Computation …

Dynamics of a pulsed single photon source

December 18, 2012
Author(s)
Sergey V. Polyakov, Edward B. Flagg, Tim O. Thomay, Glenn S. Solomon
… a nonclassical state produced from a single InAs quantum dot (QD). We experimentally observe variations in the … Quantum theory - reconsideration of foundations 6 … Single photon source, quantum dot, dynamics …

Fractional Quantum Hall States of Rydberg Polaritons

March 31, 2015
Author(s)
Mohammad F. Maghrebi, Norman Y. Yao, Mohammad Hafezi, Thomas Pohl, Ofer Firstenberg, Alexey Gorshkov
… We propose a scheme for realizing fractional quantum Hall states of light. In our scheme, photons of two … topological flat band gives rise to a photonic fractional quantum Hall state on a lattice, i.e. a fractional Chern … proposed scheme also allows one to implement fractional quantum Hall states of Rydberg atoms in a lattice. …

Quantum Mutual Information after One Half of an Entangled State Propagates through a Dispersive Medium

May 25, 2014
Author(s)
Jeremy B. Clark, Ryan T. Glasser, Quentin C. Glorieux, Ulrich Vogl, Tian Li, Kevin M. Jones, Paul D. Lett
… The dynamics of quantum states of light propagating through slow-light media … theoretically and experimentally. The question as to how quantum properties like entanglement behave upon propagation … through a fast-light medium of Rb vapor. We show that the quantum correlations associated with continuous-variable …

A Cryogenic Quantum-Based RF Source

September 10, 2020
Author(s)
Justus A. Brevik, Alirio De Jesus Soares Boaventura, Manuel C. Castellanos Beltran, Christine A. Donnelly, Nathan E. Flowers-Jacobs, Anna E. Fox, Peter F. Hopkins, Paul D. Dresselhaus, Dylan Williams, Samuel P. Benz
… the results and measurement procedure for generating quantum-based signals using an array of Josephson junctions … and calibrating those signals to transfer the on-wafer quantum-based accuracy to room temperature. … waveform synthesizer, results, measurement procedure, quantum-based signals, Josephson junctions, circuits, …

Resilience-Runtime Tradeoff Relations for Quantum Algorithms

February 3, 2025
Author(s)
Luis Pedro Garcia-Pintos, Tom O'Leary, Tanmoy Biswas, Jacob Bringewatt, Lukasz Cincio, Lucas Brady, Yi-Kai Liu
… of errors. This paradigm is particularly prevalent in quantum computing, where gates are hard to implement and noise rapidly decreases a quantum computer's potential to outperform classical … we find that minimizing the number of operations in a quantum algorithm can be counterproductive, leading to a …
Displaying 576 - 600 of 9848
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