The Bose Gas and Asymmetric Simple Exclusion Process on the Half-Line
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The Bose Gas and Asymmetric Simple Exclusion Process on the Half-Line

  • Author(s): Tracy, Craig A.
  • Widom, Harold
  • et al.

Published Web Location

https://arxiv.org/pdf/1205.4054.pdf
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Abstract

In this paper we find explicit formulas for: (1) Green's function for a system of one-dimensional bosons interacting via a delta-function potential with particles confined to the positive half-line; and (2) the transition probability for the one-dimensional asymmetric simple exclusion process (ASEP) with particles confined to the nonnegative integers. These are both for systems with a finite number of particles. The formulas are analogous to ones obtained earlier for the Bose gas and ASEP on the line and integers, respectively. We use coordinate Bethe Ansatz appropriately modified to account for confinement of the particles to the half-line. As in the earlier work, the proof for the ASEP is less straightforward than for the Bose gas.

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