#heisenberg model
5 papers · 1 filter
Quantum spin-glass criticality in disordered frustrated dimer magnets
Darshan G. Joshi, Matthias Vojta
The paper investigates the quantum phase transition between a spin‑glass phase and a dimer quantum paramagnet in a disordered triangular‑lattice bilayer Heisenberg model, using bon…
Emergence of a monopole phase in the Heisenberg model on the triangular lattice for small magnetic fields
Sasank Budaraju, Shi Feng, Josef Willsher +3
The authors use variational Monte Carlo to map the ground‑state phase diagram of the J1‑J2 Heisenberg model on a triangular lattice under small Zeeman fields, revealing a monopole‑…
Efficient quantum algorithm for Heisenberg spin systems
Sergey Bravyi, David Gosset, Yinchen Liu +1
The paper proves a lower bound on the spectral gap of a broad class of Heisenberg spin Hamiltonians and uses this to design an efficient quantum adiabatic algorithm for estimating…
Basis Adaptive Algorithm for Quantum Many-Body Systems on Quantum Computers
Anutosh Biswas, Sayan Ghosh, Ritajit Majumdar +3
The paper proposes a Basis Adaptive algorithm that combines quantum sampling with classical diagonalization to compute ground‑state properties of correlated many‑body systems while…
Finite-time Scaling of the surface special transition in a 3D classical Heisenberg model
Dong-Xu Liu, Dongxu Liu, Zhe Wang +2
The paper studies how the surface order parameter evolves under rapid changes of temperature or surface coupling in a 3D classical Heisenberg model, revealing that starting from an…