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Displaying 2101 - 2125 of 9850

Second Chern number of a quantum-simulated non-Abelian Yang monopole

June 29, 2018
Author(s)
Ian B. Spielman, Francisco Salces Carcoba, Yuchen Yue, Abigail Perry, Seiji Sugawa
… inspired by concepts from high-energy physics, we use quantum simulation based on the spin degrees of freedom of … Second Chern number of a quantum-simulated non-Abelian Yang monopole …

Trapped-ion optical atomic clocks at the quantum limits

January 31, 2017
Author(s)
David R. Leibrandt, Samuel M. Brewer, Jwo-Sy Chen, Aaron M. Hankin, David B. Hume, David J. Wineland, Chin-Wen Chou
… of optical atomic clocks, with a focus on the Al+ quantum-logic clock developed at NIST. We discuss the current … Trapped-ion optical atomic clocks at the quantum limits …

Strong coupling between a topological insulator and a III-V heterostructure at terahertz frequency

March 8, 2022
Author(s)
Garnett W. Bryant, D. Quang To, Zhengtianye Wang, Q. Dai Ho, Ruiqi Hu, Wilder Acuna, Yongchen Liu, Anderson Janotti, Joshua Zide, Stephanie Law, Matthew Doty
… the interaction between the Bi2Se3 layer and AlGaAs/GaAs quantum wells with intersubband transitions (ISBTs) in the … doping level and the scattering rate in the AlGaAs/GaAs quantum wells, as well as on the thickness of the GaAs spacer layer that separates the quantum-well structure from the TI layer Our results reveal …

Kinetic Theory of a Spin-1/2 Bose-Condensed Gas

October 12, 2021
Author(s)
T Nikuni, J E. Williams
… fraction. The noncondensate atoms are described by a quantum kinetic equation, which is a generalization of the spin kinetic equation for spin-polarized quantum gases to include couplings to the condensate degree … Bose-Einstein condensation, kinetic theory, quantum coherence, spin waves, spin-1/2 Bose gas …

Ab Initio Structure of the Active Site of Phosphotriesterase

February 1, 2001
Author(s)
Morris Krauss
… interacting with an all-electron active site in the quantum Hamiltonian. The GAMESS suite of electronic structure … characteristics of phosphotriesterase using ab-initio quantum mechanical methods. A single x-ray structure for the …

The Role of Semantic Roles in Disambiguating Verb Senses

December 19, 2005
Author(s)
Hoa T. Dang, Martha S. Palmer
We describe an automatic Word Sense Disambiguation (WSD) system that disambiguates verb senses using syntactic and semantic features that encode information about predicate arguments and semantic classes. Our system performs better than the best published

Technology for the Information Commons in a Special Library

March 1, 2005
Author(s)
Nancy Allmang, Rosa Liu
Recently, Information Commons has become a buzzword with two meanings--a gathering place for collaborating and sharing new technologies, or a virtual spot for disseminating intellectual information. This case study highlights technologies utilized by a

Semiconductor Nanocrystal Probes for Human Metaphase Chromosomes

February 1, 2004
Author(s)
Yan Xiao, Peter E. Barker
… (CdSe) ZnSquantum dots in DNA FISH experiments show that quantum dot FISh probes were 11 times brighter than FITC … FITC (11%). These results demonstrate the feasibility of quantum dot-labeled FISH probes for human metaphase … chromosome, cytogenetics, FISH, karyotype, metaphase, quantum dot, semiconductor nanocrystal …

Polar codes in a QKD Environment

May 22, 2014
Author(s)
Anastase Nakassis, Alan Mink
… decoders. As such, it is an interesting candidate for the quantum key distribution (QKD) protocol that normally … Quantum key distribution, QKD reconciliation, Entropy, Polar …

Composition of Engineering Web Services with Distributed Data Flows and Computations

April 1, 2005
Author(s)
D. Liu, J Peng, K Law, G Wiederhold, Ram D. Sriram
… improved by adopting active mediation, which distributes computations within the service framework, and reduces the amount of data traffic significantly by moving computations closer to the data. A system has been prototyped … Engineering Web Services with Distributed Data Flows and Computations …

Comparing VM-Placement Algorithms for On-Demand Clouds

November 29, 2011
Author(s)
Kevin L. Mills, James J. Filliben, Christopher E. Dabrowski
… cloud computing, resource allocation, simulation … 3rd International Conference on Cloud Computing Technology and Science …

Basing Cybersecurity Training on User Perceptions

April 2, 2012
Author(s)
Susanne M. Furman, Mary F. Theofanos, Yee-Yin Choong, Brian C. Stanton
The National Initiative for Cybersecurity Education (NICE) will be conducting a nationwide awareness and outreach program to effect behavioral change. To be effective, an educational campaign must first understand users’ perceptions of computer and online

Revised Guide Helps Organizations Handle Security-Related Incidents

September 27, 2012
Author(s)
Shirley M. Radack
This bulletin summarizes the information that is included in NIST Special Publication (SP) 800-61 Revision 2, Computer Security Incident Handling Guide. This publication assists organizations in establishing computer security incident response capabilities
Displaying 2101 - 2125 of 9850
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