239 citations · 2.2k across the 65 of their papers we have counts for
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cond-mat2002★ 11 cited
Extracting Hidden Symmetry from the Energy Spectrum
Emil A. Yuzbashyan, William Happer, Boris L. Altshuler +1
In this paper we revisit the problem of finding hidden symmetries in quantum mechanical systems. Our interest in this problem was renewed by nontrivial degeneracies of a simple spi…
cond-mat.str-el2002★ 43 cited
The Origin of Degeneracies and Crossings in the 1d Hubbard Model
E. A. Yuzbashyan, B. L. Altshuler, B. S. Shastry
The paper is devoted to the connection between integrability of a finite quantum system and degeneracies of its energy levels. In particular, we analyze in detail the energy spectr…