Laser modulation of superconductivity in a cryogenic wide-field nitrogen-vacancy microscope

SE Lillie, DA Broadway, N Dontschuk, SC Scholten… - Nano Letters, 2020 - ACS Publications
We realize a cryogenic wide-field nitrogen-vacancy microscope and use it to image
Abrikosov vortices and transport currents in a superconducting Nb film. We observe the …

Local Josephson vortex generation and manipulation with a Magnetic Force Microscope

VV Dremov, SY Grebenchuk, AG Shishkin… - Nature …, 2019 - nature.com
Josephson vortices play an essential role in superconducting quantum electronics devices.
Often seen as purely conceptual topological objects, 2 π-phase singularities, their …

Braiding Majorana fermions and creating quantum logic gates with vortices on a periodic pinning structure

X Ma, CJO Reichhardt, C Reichhardt - Physical Review B, 2020 - APS
We show how vortices that support Majorana fermions when placed on a periodic pinning
array can be used for vortex exchange and independent braiding by performing a series of …

Josephson junctions in a local inhomogeneous magnetic field

VM Krasnov - Physical Review B, 2020 - APS
A Josephson junction can be subjected to a local, strongly inhomogeneous magnetic field in
various experimental situations. Here this problem is analyzed analytically and numerically …

Lateral Josephson junctions as sensors for magnetic microscopy at nanoscale

RA Hovhannisyan, SY Grebenchuk… - The Journal of …, 2021 - ACS Publications
Lateral Josephson junctions (LJJ) made of two superconducting Nb electrodes coupled by
Cu-film are applied to quantify the stray magnetic field of Co-coated cantilevers used in …

Optical vortex manipulation for topological quantum computation

C Hua, GB Halász, E Dumitrescu, M Brahlek, B Lawrie - Physical Review B, 2021 - APS
Topological quantum computation based on Majorana bound states may enable new paths
to fault-tolerant quantum computing. Several recent experiments have suggested that the …

Vortex Majorana braiding in a finite time

T Posske, CK Chiu, M Thorwart - Physical Review Research, 2020 - APS
Abrikosov vortices in Fe-based superconductors are a promising platform for hosting
Majorana zero-energy modes. Their adiabatic exchange is a key ingredient for Majorana …

Magnetic Force Microscopy for Diagnosis of Complex Superconducting Circuits

SY Grebenchuk, RA Hovhannisyan, AG Shishkin… - Physical Review …, 2022 - APS
The possibility of controlling Josephson vortices and fluxon states has always been an
attractive area of research that can influence the development of superconducting devices …

Superresolution magnetic imaging by a Josephson junction via holographic reconstruction of modulation

RA Hovhannisyan, T Golod, VM Krasnov - Physical Review Applied, 2023 - APS
This work provides a proof-of-concept for superresolution magnetic imaging using a single
Josephson junction. The technique resembles digital holography: magnetic patterns are …

Imaging and controlling vortex dynamics in mesoscopic superconductor–normal-metal–superconductor arrays

TR Naibert, H Polshyn, R Garrido-Menacho, M Durkin… - Physical Review B, 2021 - APS
Harnessing the properties of vortices in superconductors is crucial for fundamental science
and technological applications; thus, it has been an ongoing goal to locally probe and …