A hybrid method integrating Green’s function Monte Carlo and projected entangled pair states
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DOI: 10.1088/1674-1056/ad84c9
Abstract: This paper introduces a hybrid approach combining Green’s function Monte Carlo (GFMC) method with projected entangled pair state (PEPS) ansatz. This hybrid method regards PEPS as a trial state and a guiding wave function in… read more here.
Keywords: function monte; hybrid method; function; green function ... See more keywords
Projected entangled pair states study of anisotropic-exchange magnets on the triangular lattice
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DOI: 10.1103/physrevb.105.024411
Abstract: The anisotropic-exchange spin-1/2 model on a triangular lattice has been used to describe the rare-earth chalcogenides, which may have exotic ground states. We investigate the quantum phase diagram of the model by using the projected… read more here.
Keywords: anisotropic exchange; triangular lattice; projected entangled; entangled pair ... See more keywords
Simulation of ring-exchange models with projected entangled pair states
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DOI: 10.1103/physrevb.105.024417
Abstract: Algorithms to simulate the ring-exchange models using the projected entangled pair states (PEPS) are developed. We generalize the imaginary time evolution (ITE) method to optimize PEPS wave functions for the models with ring-exchange interactions. We… read more here.
Keywords: exchange; pair states; projected entangled; entangled pair ... See more keywords
Spectral functions with infinite projected entangled-pair states
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DOI: 10.1103/physrevb.110.094314
Abstract: Infinite projected entangled-pair states (iPEPS) provide a powerful tool to study two-dimensional strongly correlated systems directly in the thermodynamic limit. In this work, we extend the iPEPS toolbox by a method to efficiently evaluate non-equal… read more here.
Keywords: pair states; entangled pair; infinite projected; spectral functions ... See more keywords
Finite-size scaling on the torus with periodic projected entangled-pair states
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DOI: 10.1103/physrevb.111.165124
Abstract: An efficient algorithm is constructed for contracting two-dimensional tensor networks under periodic boundary conditions. The central ingredient is a novel renormalization step that scales linearly with system size, i.e. from $L \to L+1$. The numerical… read more here.
Keywords: pair states; size; entangled pair; finite size ... See more keywords
Infinite matrix product states versus infinite projected entangled-pair states on the cylinder: A comparative study
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DOI: 10.1103/physrevb.96.115113
Abstract: In spite of their intrinsic one-dimensional nature, matrix product states have been systematically used to obtain remarkably accurate results for two-dimensional systems. Motivated by basic entropic arguments favoring projected entangled-pair states as the method of… read more here.
Keywords: pair states; entangled pair; matrix product; projected entangled ... See more keywords
Infinite projected entangled-pair state algorithm for ruby and triangle-honeycomb lattices
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DOI: 10.1103/physrevb.97.115161
Abstract: The infinite Projected Entangled-Pair State (iPEPS) algorithm is one of the most efficient techniques for studying the ground-state properties of two-dimensional quantum lattice Hamiltonians in the thermodynamic limit. Here, we show how the algorithm can… read more here.
Keywords: state; entangled pair; pair state; projected entangled ... See more keywords
Projected entangled pair states with continuous virtual symmetries
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DOI: 10.1103/physrevb.98.115120
Abstract: We study Projected Entangled Pair States (PEPS) with continuous virtual symmetries, i.e., symmetries in the virtual degrees of freedom, through an elementary class of models with SU(2) symmetry. Discrete symmetries of that kind have previously… read more here.
Keywords: pair states; entangled pair; continuous virtual; projected entangled ... See more keywords
Simulating Chiral Spin Liquids with Projected Entangled-Pair States.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.177201
Abstract: Doubts have been raised on the representation of chiral spin liquids exhibiting topological order in terms of projected entangled pair states (PEPSs). Here, starting from a simple spin-1/2 chiral frustrated Heisenberg model, we show that… read more here.
Keywords: projected entangled; pair states; spin; entangled pair ... See more keywords