# Charge-2e skyrmion condensate in a hidden-order state

@article{Hsu2013Charge2eSC,
title={Charge-2e skyrmion condensate in a hidden-order state},
author={Chen-Hsuan Hsu and Sudip Chakravarty},
journal={Physical Review B},
year={2013},
volume={87},
pages={085114}
}
• Published 28 September 2012
• Physics
• Physical Review B
A higher angular momentum ($\ell =2$) $d$-density wave, a mixed triplet and a singlet, interestingly, admits skyrmionic textures. The Skyrmions carry charge $2e$ and can condense into a spin-singlet s-wave superconducting state. In addition, a charge current can be induced by a time-dependent inhomogeneous spin texture, leading to quantized charge pumping. The quantum phase transition between this mixed triplet $d$-density wave and skyrmionic superconducting condensate likely leads to…
8 Citations
A Study of d-DensityWave States in Strongly Correlated Electron Systems
Particle-hole condensates in the angular momentum $l=2$ channel, known as $d$-density wave orders, have been suggested to be realized in strongly correlated electron systems. In this dissertation, we
Skyrmions in a density wave state: a mechanism for chiral superconductivity
• Physics
• 2015
Broken symmetry states characterizing density waves of higher angular momentum in correlated electronic systems are intriguing objects. In the scheme of characterization by angular momentum,
Skyrmion defects and competing singlet orders in a half-filled antiferromagnetic Kondo-Heisenberg model on the honeycomb lattice
• Physics
• 2017
Due to the interaction between topological defects of an order parameter and underlying fermions, the defects can possess induced fermion numbers, leading to several exotic phenomena of fundamental
Dynamic zero modes of Dirac fermions and competing singlet phases of antiferromagnetic order
• Physics
• 2017
In quantum spin systems, singlet phases often develop in the vicinity of an antiferromagnetic order. Typical settings for such problems arise when itinerant fermions are also present. In this work,
Competing Orders and Anomalies
• E. Moon
• Physics, Medicine
Scientific reports
• 2016
By applying the matching condition, it is shown massless excitations are enforced by the anomalies in a whole phase diagram in sharp contrast to the case of the Landau-Ginzburg-Wilson theory which only has massive excitations in symmetric phases.
Hidden order behaviour in URu2Si2 (A critical review of the status of hidden order in 2014)
• Physics, Computer Science
• 2014
Six different experiments are reviewed: ARPES, quantum oscillations, neutron scattering, RXD, optical spectroscopy and STM/STS, which establish the consistencies among these experiments when viewed through the Fermi-surface nesting, folding and gapping framework as predicted by DFT.
Mechanism of skyrmion condensation and pairing for twisted bi-layer graphene
• Physics
• 2021
Dian Jing, Alexander Conkey Tyner, Pallab Goswami 1 Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208 2 Department of Chemical and Biological Engineering, Northwestern