11 papers
Quantum Chaos with a Macroscopic Zero-Mode Sector
Cheryne Jonay, Kun W. Kim, Frank Pollmann +1
Chaotic many-body spectra are expected to densely fill their energy window. We show that constrained spin chains with chiral symmetry evade this expectation by hosting an exponenti…
Quantum trajectory simulation of two-dimensional non-equilibrium steady states with a trapped ion quantum processor
Anna Dalmasso, Arash Jafarizadeh, Julian Boesl +8
Digital quantum computers offer a promising route for studying complex many-body systems that are otherwise inaccessible by their classical counterparts. Capabilities including mid…
Dynamical dimer structure factor of the triangular Heisenberg antiferromagnet
Markus Drescher, Laurens Vanderstraeten, Roderich Moessner +2
The dynamical dimer structure factor is an observable probing spin-singlet excitations of quantum magnets distinct from those commonly studied by the spin structure factor. We repo…
Unconventional Spin Dynamics and Supersolid Excitations in the Triangular-Lattice XXZ Model
Rafael Flores-Calderón, Roderich Moessner, Frank Pollmann
Motivated by recent experiments, we investigate the spin-1/2 XXZ model on the triangular lattice with strong Ising anisotropy, combining large-scale numerical simulations and analy…
Measuring Anyonic Exchange Phases Using Two-Dimensional Coherent Spectroscopy
Nico Kirchner, Wonjune Choi, Frank Pollmann
Identifying experimental signatures of anyons, which exhibit fractional exchange statistics, remains a central challenge in the study of two-dimensional topologically ordered syste…
Spectral Functions of an Extended Antiferromagnetic Heisenberg Model on the Triangular Lattice
Markus Drescher, Laurens Vanderstraeten, Roderich Moessner +1
We study an extended spin- antiferromagnetic Heisenberg model on the triangular lattice, which includes both nearest- and next-nearest-neighbor interactions, as well as a scal…