119 citations · 370 across the 17 of their papers we have counts for
5 papers · 1 filter
From tensors to qubits
Yannick Meurice, Alexei Bazavov, Patrick Dreher +6
We discuss recent progress in Tensor Lattice Field Theory and economical, symmetry preserving, truncations suitable for quantum computations or simulations. We focus on spin and ga…
Clock model interpolation and symmetry breaking in O(2) models
Leon Hostetler, Jin Zhang, Ryo Sakai +3
The -state clock model is a classical spin model that corresponds to the Ising model when and to the model when . The integer- clock model has been stu…
Fidelity and entanglement entropy for infinite-order phase transitions
Jin Zhang
We study the fidelity and the entanglement entropy for the ground states of quantum systems that have infinite-order quantum phase transitions. In particular, we consider the quant…
Clock model interpolation and symmetry breaking in O(2) models
Leon Hostetler, Jin Zhang, Ryo Sakai +3
Motivated by recent attempts to quantum simulate lattice models with continuous Abelian symmetries using discrete approximations, we define an extended-O(2) model by adding a $γ\co…
Truncation effects in the charge representation of the O(2) model
Jin Zhang, Yannick Meurice, Shan-Wen Tsai
The O(2) model in Euclidean space-time is the zero-gauge-coupling limit of the compact scalar quantum electrodynamics. We obtain a dual representation of it called the charge repre…