- 01-147 Nilanjana Datta, Tom Kennedy
- Expansions for one quasiparticle states in spin 1/2 systems
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Apr 20, 01
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Abstract. Convergent expansions of the wavefunctions for the ground state
and low-lying excited states of quantum transverse Ising systems
are obtained. These expansions are employed to prove that
the dispersion relation for a single quasi-particle
has a convergent expansion.
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