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The Energy Gap in Nuclear Matter

Description: The magnitude of the energy gap in nuclear matter associated with a highly correlated ground state of the type believed to be important in the theory of superconductivity has been evaluated theoretically. The integral equation of Cooper, Mills, and Sessler is linearized and transformed into a form suitable for numerical solution. The energy gap, calculated by using an appropriate single-particle potential and the Gammel-Thaler two-body potential, is found to be a very strong function of the den… more
Date: January 31, 1960
Creator: Emery, V. J. & Sessler, A. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quantum computation with ``hot`` trapped ions

Description: The authors describe two methods that have been proposed to circumvent the problem of heating by external electromagnetic fields in ion trap quantum computers. Firstly the higher order modes of ion oscillation (i.e., modes other than the center-of-mass mode) have much slower heating rates, and can therefore be employed as a reliable quantum information bus. Secondly they discuss a recently proposed method combining adiabatic passage and a number-state dependent phase shift which allows quantum … more
Date: December 31, 1998
Creator: James, D.F.V.; Schneider, S. & Milburn, G.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Resonance enhanced multiphoton ionization spectra of molecules and molecular fragments. Annual progress report, March 1992--February 1993

Description: In this report, the author will review the progress made in his studies of ion rotational distributions resulting from resonance enhanced multiphoton ionization of excited electronic states and from single-photon ionization of ground electronic states of jet-cooled molecules by coherent VUV and XUV radiation. To do so he will select a few examples from his studies which serve to highlight his progress and to identify the background and significance of the specific spectral features and systems … more
Date: December 31, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Selective excitation of the yellow and blue luminescence in n- and p-doped Gallium Nitride

Description: GaN is an interesting material: technologically very useful, but still having many unexplained features. Two such features are the broad defect-related luminescence bands: the YL of n-type GaN and the BL of Mg-doped p-type GaN. We have employed selective excitation to investigate these bands. In the case of the YL, most of the previous evidence has supported a recombination model between distant donors and acceptors, most likely a transition involving a shallow donor to a deep acceptor. Our sel… more
Date: December 31, 2000
Creator: Colton, John S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Metastable Enhancement of C[sup +] and O[sup +] Capture Reactions. [10 to 500 eV]

Description: The project is devoted to the study of charge transfer neutralization of Carbon and oxygen ions in H and H[sub 2] gases at energies from 10 to 500 eV. A major motivation was to provide cross section data to support analysis of edge plasmas in Tokamak Fusion devices. The first objective was to measure cross sections for metastable excited singly charged ions separately from the cross sections for ground state ions. Previously published values are confusing because the beams used included unknown… more
Date: July 31, 1992
Creator: Thomas, E.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metastable Enhancement of C{sup +} and O{sup +} Capture Reactions. Final Report

Description: The project is devoted to the study of charge transfer neutralization of Carbon and oxygen ions in H and H{sub 2} gases at energies from 10 to 500 eV. A major motivation was to provide cross section data to support analysis of edge plasmas in Tokamak Fusion devices. The first objective was to measure cross sections for metastable excited singly charged ions separately from the cross sections for ground state ions. Previously published values are confusing because the beams used included unknown… more
Date: July 31, 1992
Creator: Thomas, E. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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