U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 576 - 600 of 3643

Energy efficient single flux quantum based neuromorphic computing

November 8, 2018
Author(s)
Michael Schneider, Christine A. Donnelly, Stephen E. Russek, Burm Baek, Matthew Pufall, Pete Hopkins, William Rippard
… Among the technologies being developed, single flux quantum based Josephson junctions are a promising choice for … regime. MJJ devices integrated with standard single flux quantum neural systems form a new class of neuromorphic … neuromorphic computing, single flux quantum, magnetic Josephson junctions …

Observation of Quantum Anomalous Hall Effect and Exchange Interaction in Topological Insulator/Antiferromagnet Heterostructure

August 27, 2020
Author(s)
Lei Pan, Alexander Grutter, Peng Zhang, Xiaoyu Che, Tomohiro Nozaki, Alex Stern, Mike Street, Bing Zhang, Brian Casas, Qing L. He, Eun S. Choi, Steven M. Disseler, Dustin Gilbert, Gen Yin, Qiming Shao, Peng Deng, Yingying Wu, Xiaoyang Liu, Xufeng Kou, Sahashi Masashi, Xiaodong Han, Christian Binek, Scott Chambers, Jing Xia, Kang L. Wang
… Integration of a quantum anomalous Hall insulator with a magnetically ordered … freedom through which we may control the resulting exotic quantum states. Here, we report an experimental observation of the quantum anomalous Hall effect in a magnetically-doped … Magnetism, topology, Quantum anomalous hall effect, topological insulator, …

Non-local propagation of correlations in long-range interacting quantum systems

July 10, 2014
Author(s)
Phil Richerme, Zhexuan Gong, Aaron Lee, Crystal Senko, Jacob Smith, Michael S. Foss-Feig, Spyridon Michalakis, Alexey Gorshkov, Christopher Monroe
… The maximum speed with which information can propagate in a quantum many-body system directly affects how quickly … and time-dependent correlations of a far-from-equilibrium quantum many-body system evolving under a long-range Ising- … theory. Our results demonstrate that even modestly-sized quantum simulators are well-poised for studying complicated …

Measurement Challenges for Scaling Superconductor-based Quantum Computers

June 23, 2022
Author(s)
Pete Hopkins, Manuel Castellanos Beltran, John Biesecker, Paul Dresselhaus, Anna Fox, Logan Howe, David Olaya, Adam Sirois, Dylan Williams, Samuel P. Benz, Alirio De Jesus Soares Boaventura, Justus Brevik
… Global investment in the research and development of quantum information systems by industry, government, and … scaling to the large number of qubits required to make a quantum computer (QC) capable of solving relevant problems … Quantum computing, superconductor qubits, qubit control, …

Exchange-Biased Quantum Anomalous Hall Effect

May 19, 2023
Author(s)
Peng Zhang, Purnima P. Balakrishnan, Christopher Eckberg, Peng Deng, Tomohiro Nozaki, Sukong Chong, Patrick Quarterman, Megan Holtz, Brian B. Maranville, Gang Qiu, Lei Pan, Eve Emmanouilidou, Ni Ni, Masashi Sahashi, Alexander Grutter, Kang L. Wang
… The quantum anomalous Hall (QAH) effect is characterized by a … great importance in both the understanding of topological quantum physics and the implementation of dissipationless … quantum anomalous Hall effect, magnetic topological … Exchange-Biased Quantum Anomalous Hall Effect …

Dark pulse quantum dot diode laser

June 7, 2010
Author(s)
Mingming M. Feng, Kevin L. Silverman, Richard P. Mirin, Steven T. Cundiff
… We describe an operating regime for passively mode-locked quantum dot diode laser where the output consists of a train … quantum dot, diode laser, mode-locked lasers, dark pulses, … Dark pulse quantum dot diode laser …

Thermal Voltage Converter Calibrations Using a Quantum AC Standard

April 10, 2008
Author(s)
Thomas E. Lipe Jr., Joseph R. Kinard Jr., Yi-hua D. Tang, Samuel Benz, Charles J. Burroughs, Paul Dresselhaus
… We report on the first-ever use of a quantum ac source to calibrate a thermal transfer standard as … ac-dc transfer methods. We briefly describe the basic quantum ac calibration system, its operation, and measurement … ac-dc difference, Josephson array, Josephson voltage, quantum voltage standard, thermal transfer standard …

Automation of Quantum Dot Measurement Analysis via Explainable Machine Learning

January 13, 2025
Author(s)
Daniel Schug, Tyler Kovach, Michael Wolfe, Jared Benson, Sanghyeok Park, J. P. Dodson, Joelle Corrigan, Mark Eriksson, Justyna Zwolak
… The rapid development of quantum dot (QD) devices for quantum computing has necessitated more efficient and … explainable machine learning techniques to the analysis of quantum dot measurements, paving the way for further advances … learning, explainable boosting machines, semiconductor quantum dots …

Thermodynamic Control of Germanium Quantum Dot Growth on Silicon

May 1, 2005
Author(s)
Richard J. Wagner, E Gulari
… produces self-assembled, nanometer scale islands, or quantum dots. We study this growth by atomistic simulation, … atomistic, germanium, quantum dots, self-assembly, silicon, simulation, … Thermodynamic Control of Germanium Quantum Dot Growth on Silicon …

Atomistic Description of the Electronic Structure of T-Shaped Quantum Wires

August 1, 2003
Author(s)
Javier Aizpurua, G C. Bryant, W Jaskolski
… theory to study arrays of T-shaped GaAs/AlGaAs quantum wires. An atomistic approach allows us to provide a … low dimensional systems, quantum wires, semiconductor heterostructures, tight-binding … Description of the Electronic Structure of T-Shaped Quantum Wires …

Enriching 28Si beyond 99.9998 % for semiconductor quantum computing

August 5, 2014
Author(s)
Kevin J. Dwyer, Joshua M. Pomeroy, David S. Simons, June W. Lau, Kristen L. Steffens
… materials critical for long spin coherence times in quantum information devices. Using a mass spectrometry … quantum information, enriched silicon, isotopic purification, … Enriching 28Si beyond 99.9998 % for semiconductor quantum computing …

Quantum materials for energy-efficient neuromorphic computing: Opportunities and challenges

July 19, 2022
Author(s)
Axel Hoffmann, Shriram Ramanathan, Julie Grollier, Andrew Kent, Marcelo Rozenberg, Ivan Schuller, Oleg Shpyrko, Robert Dynes, Yeshaiahu Fainman, Alex Frano, Eric Fullerton, Giulia Galli, Vitaliy Lomakin, Shyue Ping Ong, Amanda K. Petford-Long, Jonathan A. Schuller, Mark Stiles, Yayoi Takamura, Yimei Zhu
… massive amounts of data. The unique attributes of quantum materials can help address these needs by enabling … the current opportunities and challenges for assembling quantum-material-based devices for neuromorphic … Neuromorphic computing, spintronics, quantum materials, memristor, neuristor, metal insulator …

Fluorescence Intermittency in Single InP Quantum Dots

October 1, 2001
Author(s)
M Kuno, D P. Fromm, Alan Gallagher, David Nesbitt, O I. Micic, A J. Nozik
… Fluorescence kinetics of isolated colloidal InP quantum dots (Qds) are investigated for the first time via … intermittency, opoelectronics, photoionization, quantum dots … Fluorescence Intermittency in Single InP Quantum Dots …

Quantum Hall Resistance Traceability for the NIST-4 Watt Balance

July 10, 2016
Author(s)
Dean G. Jarrett, Randolph Elmquist, Marlin E. Kraft, George R. Jones Jr., Shamith Payagala, Frank Seifert, Stephan Schlamminger, Darine El Haddad
… Scaling from the quantum Hall resistance to 100 Ω standard resistors used by … cryogenic current comparator, direct current comparator, quantum Hall resistance, standard resistor, watt balance … Quantum Hall Resistance Traceability for the NIST-4 Watt …

Enabling phase stabilization of quantum networks via displacement-enhanced photon counting

April 23, 2025
Author(s)
Jabir Marakkarakath Vadakkepurayil, Daehyun Ahn, Ivan Burenkov, Abdella Battou, Sergey Polyakov, N. Fajar R. Annafianto
… probe signals that may contaminate and destroy fragile quantum signals propagating in the same fiber link. Here, we … cycle, we enable time-division multiplexed faint light and quantum payloads to coexist within the same communication … Quantum network, Phase estimation, Phase stabilization …

Modeling Distributed Kinetics in Isolated Semiconductor Quantum Dots

March 1, 2003
Author(s)
M Kuno, D P. Fromm, S T. Johnson, Alan Gallagher, David Nesbitt
… fluorescence intermittency in colloidal semiconductor quantum dots (QDs) is presented. In particular, experiments … fluorescence, semiconductor quantum dots … Modeling Distributed Kinetics in Isolated Semiconductor Quantum Dots …

Dynamics of the non-classical light from a single solid-state quantum emitter

October 18, 2012
Author(s)
Edward B. Flagg, Sergey Polyakov, Tim O. Thomay, Glenn S. Solomon
… cycle of an emitter, which is illustrated here using a quantum dot. We observe that photons detected early in the … quantum dot, photon statistics, quantum optics, single photon sources, coherence, … of the non-classical light from a single solid-state quantum emitter …

The equilibrium states of open quantum systems in the strong coupling regime

December 26, 2012
Author(s)
Jacob M. Taylor, Yigit Subasi, Chris Fleming, Bei L. Hu
… we investigate the late-time stationary states of open quantum systems coupled to a thermal reservoir in the strong … Quantum foundations, thermalization … The equilibrium states of open quantum systems in the strong coupling regime …

Toward scalable ion traps for quantum information processing

March 16, 2010
Author(s)
Jason Amini, Hermann Uys, Janus H. Wesenberg, Signe Seidelin, Joseph W. Britton, John J. Bollinger, Dietrich G. Leibfried, Christian Ospelkaus, Aaron Vandevender, David J. Wineland
… The basic components for a quantum information processor using trapped ions have been … computing, ion, microfabricated, quantum, trap, scalability … Toward scalable ion traps for quantum information processing …

Lateral variations in self-assembled InGaAs quantum dot distributions

June 26, 2009
Author(s)
Alexana Roshko, Todd E. Harvey, Brittany L. Hyland, Lehman Y. Susan, Keith D. Cobry
… The lateral uniformity of self-assembled InGaAs quantum dots grown by molecular beam epitaxy(MBE) was … AFM, InAs, quantum dots, uniformity … Lateral variations in self-assembled InGaAs quantum dot distributions …

Telecom band quantum dot technologies for long-distance quantum networks

December 4, 2023
Author(s)
Ying Yu, Changmin Lee, Peter Michler, Stephan Reitzenstein, Kartik Srinivasan, Edo Waks, Shunfa Liu, Jin Liu
… A future quantum internet is expected to generate, distribute, store and process quantum bits (qubits) over the world by linking different quantum nodes via quantum states of light. To facilitate … Telecom band quantum dot technologies for long-distance quantum networks …

Simulating Quantum Magnetism with Correlated Non-Neutral Ion Plasmas

August 27, 2012
Author(s)
John J. Bollinger, Joseph W. Britton, Brian C. Sawyer
… can be modified in a spin-dependent way to mimic effective quantum spin Hamiltonians. Both ferromagnetic and … ion traps, Ising interaction, Penning trap, quantum simulation … Simulating Quantum Magnetism with Correlated Non-Neutral Ion Plasmas …

Resolved sideband emission from dynamically strained quantum dots

July 16, 2010
Author(s)
Michael Metcalfe, Stephen M. Carr, Andreas Muller, Glenn S. Solomon, John R. Lawall
… The dynamic response of InAs/GaAs self-assembled quantum dots (QDs) to strain is studied by periodically … Surface acoustic wave, quantum dot, nanomechanical, sideband, cooling … Resolved sideband emission from dynamically strained quantum dots …

Edge-state Transport in Graphene p-n Junctions in the Quantum Hall Regime

December 7, 2015
Author(s)
Nikolai Klimov, Son T. Le, Jun Yan, Pratik Agnihotri, Everett Comfort, Ji Ung Lee, David B. Newell, Curt A. Richter
… full characterization of the junction interface in the quantum Hall regime covering a wide range of filling factors … quantum Hall, graphene, nanoelectronics, p-n junction, charge … Edge-state Transport in Graphene p-n Junctions in the Quantum Hall Regime …
Displaying 576 - 600 of 3643
Was this page helpful?