From the 1 of 5 linked papers with an AI index.
5 papers
Thermal Order by Disorder in Resonating-Valence Bond States on the Checkerboard Lattice
Giorgi Gogaberishvili, Nika Kurdadze, Kirill Shtengel
We derive a local spin-1/2 Hamiltonian with a resonating valence bond ground state on the checkerboard lattice. The state is characterized by the exponential decay of singlet-singl…
Microscopic Spin-1 Parent Hamiltonians for Emergent Valence-Bond Loop Manifolds
Hari Borutta, Yasir Iqbal, Kirill Shtengel
The paper presents an exact, frustration‑free spin‑1 Hamiltonian that realizes constrained valence‑bond loop states on checkerboard and pyrochlore lattices, and studies the resulti…
Percolation of Zero-Weight Paths and the Shape of the Phase Boundary in the Two-Dimensional Random-Bond Ising Model
Amirhossein Manouchehri, Kirill Shtengel
We explore the connection between the low-temperature boundary of the ferromagnetic phase in the two-dimensional random-bond Ising model, where antiferromagnetic bonds occu…
Quantum Spin Singlet and Classical Néel-Ordered Ground States in MoX3 (X = I, Br) Spin-3/2 Dimerized Antiferromagnetic Chain Crystals
Jordan Teeter, Topojit Debnath, Harshil Goyal +8
We report that MoX3 (X = I, Br) are rare van der Waals materials that exhibit signatures of both quantum spin chains with a spin singlet ground state and classical Neel order. Bulk…
Simulating 2D topological quantum phase transitions on a digital quantum computer
Yu-Jie Liu, Kirill Shtengel, Frank Pollmann
Efficient preparation of many-body ground states is key to harnessing the power of quantum computers in studying quantum many-body systems. In this work, we propose a simple method…