Identification of odd-frequency superconducting pairing in Josephson junctions

Autor:	Pal, Subhajit, Mukhopadhyay, Aabir, Adak, Vivekananda, Das, Sourin
Rok vydání:	2023
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Superconductivity
Zdroj:	Phys. Rev. B 109, L220504 (2024)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.109.L220504
Popis:	Optimal choice of spin polarization enables electron injection into the helical edge state at a precise position, despite the uncertainty principle, permitting access to specific nonlocal Green's functions. We show, within 1D effective description, that this fact facilitates a direct identification of odd-frequency pairing through parity measurement (under frequency reversal) of the nonlocal differential conductance in a setup comprising the Josephson junction on the helical edge state of a 2D topological insulator with two spin-polarized probes tunnel-coupled to the junction region. A 2D numerical simulation has also been conducted to confirm theoretical predictions as well as to demonstrate the experimental feasibility of the proposal. Comment: 11 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2311.14297 Zobrazit plný text záznamu View this record from Arxiv