TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.8.1.001
TI  - Spin-1/2 XX chains with modulated gamma interaction
PY  - 2025/01/07
UR  - https://scipost.org/SciPostPhysCore.8.1.001
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 8
IS  - 1
SP  - 001
A1  - Abbasi, Mohammad
AU  - Mahdavifar, Saeed
AU  - Motamedifar, Mostafa
AB  - 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.
ER  -

@Article{10.21468/SciPostPhysCore.8.1.001,
	title={{Spin-1/2 XX chains with modulated gamma interaction}},
	author={M. Abbasi and S. Mahdavifar and M. Motamedifar},
	journal={SciPost Phys. Core},
	volume={8},
	pages={001},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.8.1.001},
	url={https://scipost.org/10.21468/SciPostPhysCore.8.1.001},
}