75 citations · 185 across the 8 of their papers we have counts for
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hep-lat2018★ 7 cited
Gaussian states for the variational study of (1+1)-dimensional lattice gauge models
P. Sala, T. Shi, S. Kühn +3
We introduce a variational ansatz based on Gaussian states for (1+1)-dimensional lattice gauge models. To this end we identify a set of unitary transformations which decouple the g…
hep-lat2018★ 75 cited
Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions
P. Sala, T. Shi, S. Kühn +3
We introduce a method to investigate the static and dynamic properties of both Abelian and non-Abelian lattice gauge models in 1+1 dimensions. Specifically, we identify a set of tr…
cond-mat.str-el2018★ 53 cited
Solving quantum impurity problems in and out of equilibrium with variational approach
Yuto Ashida, Tao Shi, Mari Carmen Bañuls +2
A versatile and efficient variational approach is developed to solve in- and out-of-equilibrium problems of generic quantum spin-impurity systems. Employing the discrete symmetry h…