Fig. 3: Single-particle excitations of various interacting Hamiltonian. | Communications Physics

Fig. 3: Single-particle excitations of various interacting Hamiltonian.

From: Correlated flat bands and quantum spin liquid state in a cluster Mott insulator

Fig. 3: Single-particle excitations of various interacting Hamiltonian.The alternative text for this image may have been generated using AI.

a The ground state configuration of seven electrons occupying six states. b–d display the single-particle excitation energies corresponding to model Eq. (1)–(3). In each plot, we put the chemical potential below the upper Hubbard band. But its location inside this gap is arbitrary.

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