Projected d-wave superconducting state: A fermionic projected entangled pair state study
Qi Yang, Xing-Yu Zhang, Hai-Jun Liao, Hong-Hao Tu, Lei Wang
DOI 10.1103/PhysRevB.107.125128 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We investigate the physics of projected d-wave pairing states using their fermionic projected entangled pair state (fPEPS) representation. First, we approximate a d-wave Bardeen-Cooper-Schrieffer state using the Gaussian fPEPS. Next, we translate the resulting state into fPEPS tensors and implement the Gutzwiller projection which removes double occupancy by modifying the local tensor elements. The tensor network representation of the projected d-wave pairing state allows us to evaluate physical quantities in the thermodynamic limit without employing the Gutzwiller approximation. Despite having very few variational parameters, such physically motivated tensor network states are shown to exhibit competitive energies for the doped t−J model. We expect that such construction offers useful initial states and guidance for variational tensor network calculations.
Similar papers
Resonating-valence-bond superconductors with fermionic projected entangled pair states
similarity 0.91Didier Poilblanc et al.
Source status unknown — claims are unverified
Efficient tensor network representation for Gutzwiller projected states of paired fermions
similarity 0.90Hui-Ke Jin et al. · 2020 · arXiv:2001.04611
Source status unknown — claims are unverified
Dynamical Mean Field Theory of the Gutzwiller-projected BCS Hamiltonian: Phase Fluctuations and the Pseudogap
similarity 0.88Kwon Park · 2007 · arXiv:cond-mat/0701588
Source status unknown — claims are unverified
Dynamical instability with respect to finite-momentum pairing in quenched BCS superconducting phases
similarity 0.86Beibing Huang et al.
Source status unknown — claims are unverified
Influence of thermal phase fluctuations on the spectral function for a two-dimensional d-wave superconductor
similarity 0.86M. Khodas & A. M. Tsvelik
Source status unknown — claims are unverified
Fermionic Projected Entangled Pair States at Finite Temperature
similarity 0.86Piotr Czarnik & Jacek Dziarmaga · 2013 · arXiv:1311.7272
Source status unknown — claims are unverified