Phase Transition and Its Universality Class for a Quantum Spin Chain


2021-3-29

JPS Hot Topics 1, 029

https://doi.org/10.7566/JPSHT.1.029

© The Physical Society of Japan

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Universality Class around the SU(3) Symmetric Point of the Dimer–Trimer Spin-1 Chain

Tohru Mashiko, Shunji Moriya, and Kiyohide Nomura
J. Phys. Soc. Jpn. 90, 024005 (2021).

We numerically diagonalize the Dimer-Trimer (DT) model Hamiltonian around the SU(3) symmetric point. As a result, we discover the phase transition at this point which belongs to the Berezinskii-Kosterlitz-Thouless (BKT)-like universality class.


Universality Class around the SU(3) Symmetric Point of the Dimer–Trimer Spin-1 Chain

Tohru Mashiko, Shunji Moriya, and Kiyohide Nomura
J. Phys. Soc. Jpn. 90, 024005 (2021).

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