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arXiv · 2409.15194

Boundary overlap in the open XXZ spin chain

Charbel Abetian·Nikolai Kitanine·Veronique Terras
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Abstract

In this paper we compute the overlaps of the ground states for the open spin chains after a change of one of the boundary magnetic fields. It can be considered as the first step toward the study of the boundary quench problem: behaviour of an open spin chain after an abrupt change of one boundary magnetic field.

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Charbel Abetian, Nikolai Kitanine, Veronique Terras. 2024-11-27. Boundary overlap in the open XXZ spin chain. https://doi.org/10.21468/scipostphys.18.1.026

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