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
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.
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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