Topological Josephson junctions in the integer quantum Hall regime

Autor: Gianmichele Blasi, Géraldine Haack, Vittorio Giovannetti, Fabio Taddei, Alessandro Braggio

Publikováno v: Physical Review Research, Vol 5, Iss 3, p 033142 (2023)

Robust and tunable topological Josephson junctions (TJJs) are highly desirable platforms for investigating the anomalous Josephson effect and topological quantum computation applications. Experimental demonstrations have been done in hybrid supercond

Externí odkaz: https://doaj.org/article/6c76c6a97e5d4f5eb52f3229aee7f590

Finite-size effects in cylindrical topological insulators

Autor: Michele Governale, Bibek Bhandari, Fabio Taddei, Ken-Ichiro Imura, Ulrich Zülicke

Publikováno v: New Journal of Physics, Vol 22, Iss 6, p 063042 (2020)

We present a theoretical study of a nanowire made of a three-dimensional topological insulator. The bulk topological insulator is described by a continuum-model Hamiltonian, and the cylindrical-nanowire geometry is modelled by a hard-wall boundary co

Externí odkaz: https://doaj.org/article/15af4affd60747d2ba64b21610bddbbf

Thermoelectric efficiency of three-terminal quantum thermal machines

Autor: Francesco Mazza, Riccardo Bosisio, Giuliano Benenti, Vittorio Giovannetti, Rosario Fazio, Fabio Taddei

Publikováno v: New Journal of Physics, Vol 16, Iss 8, p 085001 (2014)

The efficiency of a thermal engine working in the linear response regime in a multi-terminal configuration is discussed. For the generic three-terminal case, we provide a general definition of local and non-local transport coefficients: electrical an

Externí odkaz: https://doaj.org/article/85444f37127d4de5b3e4ee5e7c0c7a6d

Nonlocal thermoelectric engines in hybrid topological Josephson junctions

Autor: Alessandro Braggio, Gianmichele Blasi, Fabio Taddei, Matteo Carrega, Liliana Arrachea

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Physical Review B 103 (2021): 235434-1–235434-16. doi:10.1103/PhysRevB.103.235434
info:cnr-pdr/source/autori:Blasi G.; Taddei F.; Arrachea L.; Carrega M.; Braggio A./titolo:Nonlocal thermoelectric engines in hybrid topological Josephson junctions/doi:10.1103%2FPhysRevB.103.235434/rivista:Physical Review B/anno:2021/pagina_da:235434-1/pagina_a:235434-16/intervallo_pagine:235434-1–235434-16/volume:103

The thermoelectric performance of a topological Josephson nonlocal heat engine is thoroughly investigated. The nonlocal response is obtained by using a normal metal probe coupled to only one of the proximized helical edges in the middle of the juncti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5ccee4ee900b6fabc33d99888e3f5bf
https://doi.org/10.1103/physrevb.103.235434

From non-equilibrium Green's functions to quantum master equations for the density matrix and out-of-time-order correlators: steady state and adiabatic dynamics

Autor: Rosario Fazio, Bibek Bhandari, Fabio Taddei, Liliana Arrachea

Publikováno v: Physical Review B 104 (2021): 035425-1–035425-19. doi:10.1103/PhysRevB.104.035425
info:cnr-pdr/source/autori:Bhandari B.; Fazio R.; Taddei F.; Arrachea L./titolo:From nonequilibrium Green's functions to quantum master equations for the density matrix and out-of-time-order correlators: Steady-state and adiabatic dynamics/doi:10.1103%2FPhysRevB.104.035425/rivista:Physical Review B/anno:2021/pagina_da:035425-1/pagina_a:035425-19/intervallo_pagine:035425-1–035425-19/volume:104

We consider a finite quantum system under slow driving and weakly coupled to thermal reservoirs at different temperatures. We present a systematic derivation of the quantum master equation for the density matrix and the out-of-time-order correlators.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5faf8f016aee33e614b74a75adc68abd
http://arxiv.org/abs/2103.04373