21 citations · 87 across the 9 of their papers we have counts for
4 papers · 1 filter
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…
Nematic Confined Phases in the Quantum Link Model on a Triangular Lattice: An Opportunity for Near-Term Quantum Computations of String Dynamics on a Chip
D. Banerjee, S. Caspar, F. -J. Jiang +2
The quantum link model on the triangular lattice has two rotation-symmetry-breaking nematic confined phases. Static external charges are connected by confining strings consi…
Meron- and Semi-Vortex-Clusters as Physical Carriers of Topological Charge and Vorticity
Wolfgang Bietenholz, João C. Pinto Barros, Stephan Caspar +2
In O() non-linear -models on the lattice, the Wolff cluster algorithm is based on rewriting the functional integral in terms of mutually independent clusters. Through improve…
Doubled Lattice Chern-Simons-Yang-Mills Theories with Discrete Gauge Group
Stephan Caspar, David Mesterházy, Therkel Z. Olesen +2
We construct doubled lattice Chern-Simons-Yang-Mills theories with discrete gauge group in the Hamiltonian formulation. Here, these theories are considered on a square spatial…