Eight-vertex criticality in the interacting Kitaev chain
ArXiv 2206.11754 (2022)
From
SU
(
2
)
5
to
SU
(
2
)
3
Wess-Zumino-Witten transitions in a frustrated spin-
5
2
chain
Physical Review B American Physical Society (APS) 105:17 (2022) 174402
Critical properties of quantum three- And four-state Potts models with boundaries polarized along the transverse field
Scipost Physics Core 5:2 (2022)
Abstract:
By computing the low-lying energy excitation spectra with the density matrix renormalization group algorithm we show that boundaries polarized in the direction of the transverse field lead to scale-invariant conformal towers of states at the critical point of the quantum four-state Potts model - a special symmetric case of the Ashkin-Teller model. Furthermore, by direct comparison of the excitation spectra we phenomenologically establish the duality between the transverse-polarized and three-state-mixed boundary conditions at the four-state Potts critical point. Finally, for completeness, we verify that in the quantum three-state Potts model the "new" boundary conditions dual to the mixed ones can be realized by polarizing edge spins along the transverse field.Conformal and chiral phase transitions in Rydberg chains
ArXiv 2203.01163 (2022)
From SU(2)$_5$ to SU(2)$_3$ Wess-Zumino-Witten transitions in a frustrated spin-5/2 chain
ArXiv 2202.05087 (2022)