Gapless odd-frequency superconductivity induced by the Sachdev-Ye-Kitaev model
Nikolay V. Gnezdilov
DOI 10.1103/PhysRevB.99.024506 · 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 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.
Similar papers
Gapless odd-frequency superconductivity induced by the Sachdev-Ye-Kitaev model
similarity 0.94Nikolay V. Gnezdilov · 2018 · arXiv:1812.00736
Source status unknown — claims are unverified
Quasiparticle damping in two-dimensional superconductors with unconventional pairing
similarity 0.88M. L. Titov et al.
Source status unknown — claims are unverified
Yu-Shiba-Rusinov states in phase-biased superconductor–quantum dot–superconductor junctions
similarity 0.88Gediminas Kiršanskas et al.
Source status unknown — claims are unverified
Unconventional superconductivity in double quantum dots
similarity 0.88Björn Sothmann et al.
Source status unknown — claims are unverified
Robustness of Majorana modes and minigaps in a spin-orbit-coupled semiconductor-superconductor heterostructure
similarity 0.87Li Mao & Chuanwei Zhang
Source status unknown — claims are unverified
Zero-Phase-Difference Josephson Current Based on Spontaneous Symmetry Breaking via Parametric Excitation of a Movable Superconducting Dot
similarity 0.87A. M. Eriksson & A. Vikström
Source status unknown — claims are unverified