Spin-1/2 XX chains with modulated Gamma interaction
- URL: http://arxiv.org/abs/2411.04470v1
- Date: Thu, 07 Nov 2024 06:40:48 GMT
- Title: Spin-1/2 XX chains with modulated Gamma interaction
- Authors: M. Abbasi, S. Mahdavifar, M. Motamedifar,
- Abstract summary: We diagonalize the Hamiltonian of the model exactly using the Fermionization technique.
We probe the energy gap and identify the gapped and gapless regions.
Our findings indicate that the model undergoes first-order, second-order, gapless-gapless, and gapped-gapped phase transitions.
- Score: 0.0
- License: http://creativecommons.org/publicdomain/zero/1.0/
- Abstract: We study the spin-1/2 XX chain with a modulated Gamma interaction (GI), which results from the superposition of uniform and staggered Gamma terms. We diagonalize the Hamiltonian of the model exactly using the Fermionization technique. We then probe the energy gap and identify the gapped and gapless regions. We also examine the staggered chiral, staggered nematic and dimer order parameters to determine the different phases of the ground state phase diagram with their respective long-range orders. Our findings indicate that the model undergoes first-order, second-order, gapless-gapless, and gapped-gapped phase transitions.
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