Gapless odd-frequency superconductivity induced by the Sachdev-Ye-Kitaev model
Mesoscale and Nanoscale Physics
2019-01-15 v2 Strongly Correlated Electrons
Superconductivity
Abstract
We show that a single-fermion quantum dot acquires odd-frequency Gor'kov anomalous averages in proximity to strongly correlated Majorana zero modes, described by the Sachdev-Ye-Kitaev (SYK) model. Despite the presence of finite anomalous pairing, the superconducting gap vanishes for the intermediate coupling strength between the quantum dot and Majoranas. The increase of the coupling leads to smooth suppression of the original quasiparticles. This effect might be used as a characterization tool for recently proposed tabletop realizations of the SYK model.
Keywords
Cite
@article{arxiv.1812.00736,
title = {Gapless odd-frequency superconductivity induced by the Sachdev-Ye-Kitaev model},
author = {Nikolay V. Gnezdilov},
journal= {arXiv preprint arXiv:1812.00736},
year = {2019}
}
Comments
6 pages, 5 figures; Published version