Abstract
For the construction of the physical vacuum in exactly solvable one-dimensional models of interacting bosons it is important that the momenta of all the particles be different. We give a formal proof that they are indeed different.
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Korepin, V.E., sumitted to CMP.
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Izergin, A.G., Korepin, V.E. Pauli principle for one-dimensional bosons and the algebraic bethe ansatz. Lett Math Phys 6, 283–288 (1982). https://doi.org/10.1007/BF00400323
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DOI: https://doi.org/10.1007/BF00400323