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The plancherel formula for the infinite XXZ Heisenberg spin chain

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Abstract

In this Letter we discuss the explicit Plancherel formula for the Bethe Ansatz eigenstates for the Hamiltonian of the infinite XXZ Heisenberg-Ising spin chain in the N-magnon sectors: N=2, 3,... In particular, we shall point out that a striking spectral phenomenon occurs when the coupling constant c is such that 0<|c|<1.

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Partially supported by the NSF

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Babbitt, D., Gutkin, E. The plancherel formula for the infinite XXZ Heisenberg spin chain. Lett Math Phys 20, 91–99 (1990). https://doi.org/10.1007/BF00398274

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  • DOI: https://doi.org/10.1007/BF00398274

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