Literature DB >> 12633452

Andreev level qubit.

A Zazunov1, V S Shumeiko, E N Bratus', J Lantz, G Wendin.   

Abstract

We investigate the dynamics of a two-level Andreev bound state system in a transmissive quantum point contact embedded in an rf SQUID. Coherent coupling of the Andreev levels to the circulating supercurrent allows manipulation and readout of the level states. The two-level Hamiltonian for the Andreev levels is derived, and the effect of interaction with the quantum fluctuations of the induced flux is studied. We also consider an inductive coupling of qubits and discuss the relevant SQUID parameters for qubit operation and readout.

Year:  2003        PMID： 12633452     DOI： 10.1103/PhysRevLett.90.087003

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  4 in total

1.  Exciting Andreev pairs in a superconducting atomic contact.

Authors:  L Bretheau; Ç Ö Girit; H Pothier; D Esteve; C Urbina
Journal:  Nature       Date:  2013-07-18       Impact factor: 49.962

2.  Josephson effect in junctions of conventional and topological superconductors.

Authors:  Alex Zazunov; Albert Iks; Miguel Alvarado; Alfredo Levy Yeyati; Reinhold Egger
Journal:  Beilstein J Nanotechnol       Date:  2018-06-06       Impact factor: 3.649

3.  Semiconductor Epitaxy in Superconducting Templates.

Authors:  Markus F Ritter; Heinz Schmid; Marilyne Sousa; Philipp Staudinger; Daniel Z Haxell; M A Mueed; Benjamin Madon; Aakash Pushp; Heike Riel; Fabrizio Nichele
Journal:  Nano Lett       Date:  2021-11-18       Impact factor: 11.189

4.  Fully in situ Nb/InAs-nanowire Josephson junctions by selective-area growth and shadow evaporation.

Authors:  Pujitha Perla; H Aruni Fonseka; Patrick Zellekens; Russell Deacon; Yisong Han; Jonas Kölzer; Timm Mörstedt; Benjamin Bennemann; Abbas Espiari; Koji Ishibashi; Detlev Grützmacher; Ana M Sanchez; Mihail Ion Lepsa; Thomas Schäpers
Journal:  Nanoscale Adv       Date:  2021-01-19
  4 in total

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