Ground-state properties of the two-site Hubbard-Holstein model: an exact solution

Yu-Yu Zhang1, Tao Liu, Qing-Hu Chen

  • 1Department of Physics, Zhejiang University, Hangzhou 321004, People's Republic of China. Center for Statistical and Theoretical Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004, People's Republic of China.

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