55 citations · 212 across the 15 of their papers we have counts for
5 papers · 1 filter
Preparation for Quantum Simulation of the 1+1D O(3) Non-linear σ-Model using Cold Atoms
Anthony N. Ciavarella, Stephan Caspar, Hersh Singh +1
The 1+1D O(3) non-linear σ-model is a model system for future quantum lattice simulations of other asymptotically-free theories, such as non-Abelian gauge theories. We find that ut…
Lattice regularizations of vacua: Anomalies and qubit models
Mendel Nguyen, Hersh Singh
Anomalies are a powerful way to gain insight into possible lattice regularizations of a quantum field theory. In this work, we argue that the continuum anomaly for a given symmetry…
Simulating Heisenberg Interactions in the Ising Model with Strong Drive Fields
Anthony N. Ciavarella, Stephan Caspar, Hersh Singh +2
The time-evolution of an Ising model with large driving fields over discrete time intervals is shown to be reproduced by an effective XXZ-Heisenberg model at leading order in the i…
From asymptotic freedom to vacua: Qubit embeddings of the O(3) nonlinear model
Stephan Caspar, Hersh Singh
Conventional lattice formulations of vacua in the -dimensional nonlinear sigma model suffer from a sign problem. Here, we construct the first sign-problem-fr…
Large-charge conformal dimensions at the Wilson-Fisher fixed point
Hersh Singh
Recent work using a large-charge expansion for the Wilson-Fisher conformal field theory has shown that the anomalous dimensions of large-charge operators can be expressed in…