395 citations · 3.4k across the 56 of their papers we have counts for
56 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
We construct an exact spin- parent Hamiltonian for constrained valence-bond loop manifolds on the checkerboard and pyrochlore lattices. The Hamiltonian is local, SU(2)- and time…
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…
Order by disorder in classical kagome antiferromagnets with chiral interactions
Jackson Pitts, Finn Lasse Buessen, Roderich Moessner +2
The Heisenberg antiferromagnet on the kagome lattice is an archetypal instance of how large ground state degeneracies arise, and how they may get resolved by thermal and quantum fl…