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11 papers · 1 filter
Artifacts at 4.5 and 8.0 um in Short Wavelength Spectra from the Infrared Space Observatory
Stephan D. Price, G. C. Sloan, Kathleen E. Kraemer
Spectra from the Short Wavelength Spectrometer (SWS) on ISO exhibit artifacts at 4.5 and 8 um. These artifacts appear in spectra from a recent data release, OLP 10.0, as spurious b…
Role of disorder in half-filled high Landau levels
D. N. Sheng, Ziqiang Wang, B. Friedman
We study the effects of disorder on the quantum Hall stripe phases in half-filled high Landau levels using exact numerical diagonalization. We show that, in the presence of weak di…
Short-coherence length superconductivity in the Attractive Hubbard Model in three dimensions
Jan R. Engelbrecht, Hongbo Zhao
We study the normal state and the superconducting transition in the Attractive Hubbard Model in three dimensions, using self-consistent diagrammatics. Our results for the self-cons…
Electron-electron interactions, quantum Coulomb gap, and dynamical scaling near integer quantum Hall transitions
Ziqiang Wang, Shanhui Xiong
The effects of electron-electron interactions on the bulk tunneling density of states (TDOS) are studied near the integer quantum Hall transitions (IQHT). Taking into account the d…
Thermodynamic and Tunneling Density of States of the Integer Quantum Hall Critical State
S. -R. Eric Yang, Ziqiang Wang, A. H. MacDonald
We examine the long wave length limit of the self-consistent Hartree-Fock approximation irreducible static density-density response function by evaluating the charge induced by an…
A Random Matrix Approach to Cross-Correlations in Financial Data
V. Plerou, P. Gopikrishnan, B. Rosenow +3
We analyze cross-correlations between price fluctuations of different stocks using methods of random matrix theory (RMT). Using two large databases, we calculate cross-correlation…