Finite-Size Studies on the SO(5) Symmetry of the Hubbard Model
Stefan Meixner, Werner Hanke, Eugene Demler, Shou-Cheng Zhang
Abstract
We present numerical evidence for the approximate SO(5) symmetry of the Hubbard model on a 10 site cluster. Various dynamic correlation functions involving the π operators, the generators of the SO(5) algebra, are studied using exact diagonalisation, and are found to possess sharp collective peaks. Our numerical results also lend support on the interpretation of the recent resonant neutron scattering peaks in the YBCO superconductors in terms of the Goldstone modes of the spontaneously broken SO(5) symmetry.
Create a lesson
Related papers
Spacetime Dynamics of Altermagnetic Magnons
Ali Emami Kopaei, Karthik Subramaniam Eswaran, Krzysztof Wohlfeld
Engineering Weak Universality with Quantum Dots
Warre Missiaen, Michael Wimmer, Natalia Chepiga
Lyapunov-controlled thermalization: an exact real-time example
Jonas Loy, Jan C. Louw
Multiconfigurational Analysis of Local Electronic Structure of RuO2 Using Relativistic Embedded Clusters
Zhosan I. A., Lomachuk Yu. V., Maltsev D. A. et al.
Unconstrained compact lattice QED2+1 coupled to phonons: Gauss sectors, orthogonal semimetal, and deconfined criticality
João C. Inácio, Fakher F. Assaad
Collective Charge-\(2e\) Bosonic Excitations in Charge-Ordered Systems
Ping Tang