Emergent Symmetry in and Crystalline Spin-Orbital Liquids
While the enhancement of spin-space symmetry from the usual SU (2) to SU (N) is promising
for finding nontrivial quantum spin liquids, its realization in magnetic materials remains …
for finding nontrivial quantum spin liquids, its realization in magnetic materials remains …
SU (4) Heisenberg model on the honeycomb lattice with exchange-frustrated perturbations: Implications for twistronics and Mott insulators
The SU (4)-symmetric spin-orbital model on the honeycomb lattice was recently studied in
connection to correlated insulators such as the eg Mott insulator Ba 3 CuSb 2 O 9 and the …
connection to correlated insulators such as the eg Mott insulator Ba 3 CuSb 2 O 9 and the …
SU (4)-symmetric spin-orbital liquids on the hyperhoneycomb lattice
We study the effective spin-orbital model that describes the magnetism of 4 d 1 or 5 d 1 Mott
insulators in ideal tricoordinated lattices. In the limit of vanishing Hund's coupling, the model …
insulators in ideal tricoordinated lattices. In the limit of vanishing Hund's coupling, the model …
Intertwining SU() symmetry and frustration on a honeycomb lattice
Large symmetry groups in quantum many-body systems could strongly enhance quantum
fluctuations and thereby stabilize exotic quantum phases. Frustrated interactions were long …
fluctuations and thereby stabilize exotic quantum phases. Frustrated interactions were long …
Exact diagonalization of Heisenberg chains in the fully symmetric and antisymmetric representations
Motivated by recent experimental progress in the context of ultracold multicolor fermionic
atoms in optical lattices, we have developed a method to exactly diagonalize the …
atoms in optical lattices, we have developed a method to exactly diagonalize the …
Linear flavor-wave theory for fully antisymmetric SU() irreducible representations
The extension of the linear flavor-wave theory to fully antisymmetric irreducible
representations (irreps) of SU N is presented in order to investigate the color order of SU N …
representations (irreps) of SU N is presented in order to investigate the color order of SU N …
Dynamics of a quantum spin liquid
We study a spin-orbital model for 4 d 1 or 5 d 1 Mott insulators in ordered double perovskites
with strong spin-orbit coupling. This model is conveniently written in terms of pseudospin …
with strong spin-orbit coupling. This model is conveniently written in terms of pseudospin …
Variational Monte Carlo investigation of Heisenberg chains
Motivated by recent experimental progress in the context of ultracold multicolor fermionic
atoms in optical lattices, we have investigated the properties of the SU (N) Heisenberg chain …
atoms in optical lattices, we have investigated the properties of the SU (N) Heisenberg chain …
Ground-state phase diagram of the Heisenberg model on a plaquette lattice
We investigate the ground state of the SU (4) Heisenberg model on a square lattice with
spatial anisotropy on each plaquette bond using the tensor-network method based on …
spatial anisotropy on each plaquette bond using the tensor-network method based on …
Exact diagonalization of SU() Heisenberg and Affleck-Kennedy-Lieb-Tasaki chains using the full SU() symmetry
We present a method for the exact diagonalization of the SU (N) Heisenberg interaction
Hamiltonian using Young tableaus to work directly in each irreducible representation of the …
Hamiltonian using Young tableaus to work directly in each irreducible representation of the …