A semiclassical coherent-state approximation for the Hubbard model qualitatively reproduces exact results for particle number, double occupancy, hopping, and spin correlations in one- and two-site systems.
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Quantum fluctuations in the S=3/2 honeycomb model interpolating between Kitaev and AKLT states melt classical and semi-classical orders into a quantum-entangled phase with suppressed spin correlations and enhanced entanglement entropy.
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Semiclassical representation of the Hubbard model
A semiclassical coherent-state approximation for the Hubbard model qualitatively reproduces exact results for particle number, double occupancy, hopping, and spin correlations in one- and two-site systems.
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Kitaev Meets Affleck-Kennedy-Lieb-Tasaki: Competing Quantum Disorder in Spin-3/2 Honeycomb Systems
Quantum fluctuations in the S=3/2 honeycomb model interpolating between Kitaev and AKLT states melt classical and semi-classical orders into a quantum-entangled phase with suppressed spin correlations and enhanced entanglement entropy.