TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.17.6.155
TI  - The deformed Inozemtsev spin chain
PY  - 2024/12/06
UR  - https://scipost.org/SciPostPhys.17.6.155
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 17
IS  - 6
SP  - 155
A1  - Klabbers, Rob
AU  - Lamers, Jules
AB  - The Inozemtsev chain is an exactly solvable interpolation between the short-range Heisenberg and long-range Haldane–Shastry (HS) chains. In order to unlock its potential to study spin interactions with tunable interaction range using the powerful tools of integrability, the model's mathematical properties require better understanding. As a major step in this direction, we present a new generalisation of the Inozemtsev chain with spin symmetry reduced to $\textit{U}(1)$, interpolating between a Heisenberg XXZ chain and the XXZ-type HS chain, and integrable throughout. Underlying it is a new quantum many-body system that extends the elliptic Ruijsenaars system by including spins, contains the trigonometric spin-Ruijsenaars–Macdonald system as a special case, and yields our spin chain by 'freezing'. Our models have potential applications from condensed-matter to high-energy theory, and provide a crucial step towards a general theory for long-range integrability.
ER  -

@Article{10.21468/SciPostPhys.17.6.155,
	title={{The deformed Inozemtsev spin chain}},
	author={Rob Klabbers and Jules Lamers},
	journal={SciPost Phys.},
	volume={17},
	pages={155},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.17.6.155},
	url={https://scipost.org/10.21468/SciPostPhys.17.6.155},
}