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Integrability of a family of clean SYK models from the critical Ising chain
Kohei Fukai, Hosho Katsura
We establish the integrability of a family of Sachdev-Ye-Kitaev (SYK) models with uniform -body interactions. We derive the R-matrix and mutually commuting transfer matrices tha…
Spin Nernst and thermal Hall effects of topological triplons in quantum dimer magnets on the maple-leaf and star lattices
Nanse Esaki, Yutaka Akagi, Karlo Penc +1
We present a comprehensive theoretical study of the topological properties of triplon excitations in spin-1/2 dimer-singlet ground states defined on the maple leaf and star lattice…
Exact Quantum Many-Body Scars in 2D Quantum Gauge Models
Yuan Miao, Linhao Li, Hosho Katsura +1
Quantum many-body scars (QMBS) serve as important examples of ergodicity-breaking phenomena in quantum many-body systems. Despite recent extensive studies, exact QMBS are rare in d…
Systematic construction of asymptotic quantum many-body scar states and their relation to supersymmetric quantum mechanics
Masaya Kunimi, Yusuke Kato, Hosho Katsura
We develop a systematic method for constructing asymptotic quantum many-body scar (AQMBS) states. While AQMBS states are closely related to quantum many-body scar (QMBS) states, th…
Phase diagram of a coupled trimer system at half filling using the Hubbard model
Sourabh Saha, Hosho Katsura, Manoranjan Kumar
Flat band systems have recently attracted significant attention due to their instability under small perturbations, which can lead to the stabilization of many exotic quantum phase…
A brief note on the G Affleck-Kennedy-Lieb-Tasaki chain
Hosho Katsura, Dirk Schuricht
We consider the valence bond solid (VBS) state built of singlet pairs of fundamental representations and projected onto adjoint representations of the exceptional Lie group G.…
Fermi-Hubbard gas with three-body losses: symmetries and dark states
Alice Marché, Alberto Nardin, Hosho Katsura +1
We study an invariant Fermi-Hubbard gas undergoing on-site three-body losses. The model presents eight independent strong symmetries preventing the complete deplet…
Non-equilibirum physics of density-difference dependent Hamiltonian: Quantum Scarring from Emergent Chiral Symmetry
William N Faugno, Hosho Katsura, Tomoki Ozawa
Quantum many-body scars represent a form of weak ergodicity breaking that highlights the unusual physics of thermalization in quantum systems. Understanding scar formation promises…