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Displaying 4851 - 4875 of 9856

Temperature Compensated (Net) Volume Direct from Mass Flow Meters

September 12, 2011
Author(s)
Marc A. Buttler
Temperature compensated (net) volume can currently be measured by mass flow meters using one of two methods: 1. Gross volume flow is measured by the device. Temperature of the fluid is measured. Net volume is then computed by applying traditional

Chaotic Scattering and Escape Times of Marginally Trapped Ultracold Neutrons

July 1, 2005
Author(s)
Kevin Coakley, J M. Doyle, S N. Dzhosyuk, L Yang, Paul R. Huffman
We compute classical trajectories of ultracold neutrons (UCNs) in a superconducting Ioffe-type magnetic trap using a symplectic integration method. We find that the computed escape time for a particular set of initial conditions (momentum and position)

Experimental Validation in Software Engineering

March 24, 1997
Author(s)
M V. Zelkowitz, D Wallace
Although experimentation is an accepted approach toward scientific validation in most scientific disciplines, it only recently has gained acceptance within the software development community. In this paper we discuss a 12-model classification scheme for

A Roadmap for STEP-NC Enabled Interoperable Manufacturing

June 17, 2011
Author(s)
Fiona Zhao, Frederick M. Proctor, Martin Hardwick, Sid Venkatesh, David Odendahl, Xun Xu
STEP-NC is the result of a ten-year international effort to replace the RS274D (ISO 6983) G and M code standard with a modern associative language. The new standard connects CAD design data to CAM process data so that smart applications can understand both

AN INFORMATION MODELING METHODOLOGY FOR STANDARDS

August 31, 2011
Author(s)
Anantha Narayanan Narayanan, Jae H. Lee, Paul W. Witherell, Prabir Sarkar, Sudarsan Rachuri
Standards are developed and introduced in the market to meet the needs of specific domains. Developed by experts within a particular domain, the modeling requirements necessary to represent the information associated with these standards are often not well

Demonstration of efficient nonreciprocity in a microwave optomechanical circuit

July 6, 2017
Author(s)
Gabriel A. Peterson, Florent Q. Lecocq, Katarina Cicak, Raymond W. Simmonds, Jose A. Aumentado, John D. Teufel
… technology as well as a powerful resource for building quantum networks. Aside from large reverse isolation, a … damp and cool the mechanical modes close to their quantum ground state. We quantitatively characterize the … high-efficiency connections between disparate nodes of quantum networks, even bridging the microwave and optical …

Synthetic gauge potentials for ultracold neutral atoms

November 23, 2016
Author(s)
Ian B. Spielman, Yu-Ju Lin
… magnetic fields required to reach the fractional quantum Hall (FQH) limit in quantum gases, bosonic or fermionic alike. Because neutral … transitions. Adopting both the semiclassical and quantum mechanical approaches, we demonstrate they agree in …

p-Terphenyl Sensitized Photoreduction of CO 2 With Cobalt- and Iron-Porphyrins. Interaction Between CO and Reduced Metalloporphyrins

July 1, 1999
Author(s)
T Dhanasekaran, J Grodkowski, Pedatsur Neta, P Hambright, E Fujita
… TEA does not bind to the reduced metal complexes and the quantum efficiency is much lower for the subsequent reduction steps. Considerably higher quantum yields are obtained by adding p-terphenyl (TP) as a … are found to be nearly diffusion-controlled. The quantum yield for the reduction of M II P to M I P and for …

Theory of Optical Absorption with Electron-Hole Attraction

November 1, 1998
Author(s)
Eric L. Shirley, L Benedict, Robert B. Bohn
This work presents calculations of the optical absorption spectra of semiconductors and insulators. The background and underlying physics are discussed, and the efficient computational method used is sketched. Results for eight solids are presented and

Enhancing Image Contrast Using Coherent States and Photon Number Resolving Detectors

March 15, 2010
Author(s)
Aaron Pearlman, Alexander E. Ling, Elizabeth A. Goldschmidt, Jingyun Fan, Christoph Wildfeuer, Alan L. Migdall
… Quantum Metrology, Sub-Rayleigh Imaging, Photon Number Resolving Detector quantum metrology, sub-Rayleigh imaging, photon number resolving detector quantum metrology, sub-Rayleigh imaging, photon number …

Weak-Measurement-Induced Heating in Bose-Einstein Condensates

June 23, 2023
Author(s)
Emine Altuntas, Ian Spielman
… dynamics of many-body systems. Here, we study quantum back-action in atomic Bose-Einstein condensates, … scattered by the atoms can be considered as a part of quantum measurement process whereby the change in the system …

Coherence and decoherence in the Harper-Hofstadter model

May 19, 2021
Author(s)
Ian Spielman, Qiyu Liang, Dimi Trypogeorgos, Ana Valdes-Curiel, Junheng Tao, Mingshu Zhao
… We quantum simulated the 2D Harper-Hofstadter (HH) lattice model … when transverse flux is a rational fraction of the flux quantum and remarkably find that for irrational fractions the …

Feshbach resonances in p-wave three-body recombination within Fermi-Fermimixtures of open-shell 6-Li and closed-shell 173-Yb atoms

August 14, 2020
Author(s)
Aliana Green, Hui Li, Jun Hui See Toh, Xinxin Tang, Katherine McCormick, Ming Li, Eite Tiesinga, Svetlana Kotochigova, Subhadeep Gupta
… and closed-shell 173 Yb atoms with temperatures just above quantum degeneracy for both fermionic species. Resonances are … formation of ultracold doublet ground-state molecules and quantum simulation of superfluid p-wave pairing. …

Broadband detection of multiple spin and orbital angular momenta via dielectric metasurface

July 26, 2020
Author(s)
Si Zhang, Pengcheng Huo, Wenqi Zhu, Cheng Zhang, Peng Chen, Mingze Liu, Lu Chen, Henri Lezec, Amit Agrawal, Yanqing Lu, Ting Xu
… of optical communications, imaging, micromanipulation and quantum optics. However, complex optical setups are required … spin encoded photon states with applications in integrated quantum optics and optical communications. …

Dynamic Onset of Feynman Relation in the Phonon Regime

May 9, 2016
Author(s)
Lu Deng, Edward W. Hagley, Yan Li, Chengjie Zhu
… that in a light-matter wave mixing process 3 in a Bosonic quantum gas 4, an optical-dipole potential arising from the … significantly alter the density excitation response of a quantum gas. Indeed, this dynamic relation with a non-Feynman …

Rashba realization: Raman with RF

May 2, 2016
Author(s)
Ian B. Spielman, Daniel Campbell
… the Raman matrix elements that link m_F magnetic sublevel quantum numbers separated by two are also suppressed. These … Raman couplings can link the three XYZ states familiar to quantum chemistry, which possess the necessary connectivity …

Topological Magnon Bands in Kagome Lattice Ferromagnet

September 28, 2015
Author(s)
Robin Michael Daub Chisnell, Joel Helton, D. E. Freedman, D. K. Singh, R. I. Bewley, D. G. Nocera, Y. S. Lee
… The success of band theory in describing the motion of quantum particles inside solids is a foundational … can display unprecedented behavior, such as the fractional quantum Hall effect. We report experimental evidence for a …
Displaying 4851 - 4875 of 9856
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