Negative Eigenvalue Counting Method for One-DimensionalMesoscopic Rings

  • Published Date: May 31, 1994
  • Negative eigenvalue counting method has been extended to deal with the closed ring with large number of atoms threaded by a magnetic flux. This new method is extremely computer memory-saving and can be used to accurately determine the eigen-values and eigenvectors. As numerical examples, the results of second moment and persistent current are presented.
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