Realization of a minimal Kitaev chain in coupled quantum dots

T Dvir, G Wang, N van Loo, CX Liu, GP Mazur, A Bordin… - Nature, 2023 - nature.com
Majorana bound states constitute one of the simplest examples of emergent non-Abelian
excitations in condensed matter physics. A toy model proposed by Kitaev shows that such …

Triplet correlations in Cooper pair splitters realized in a two-dimensional electron gas

Q Wang, SLD Ten Haaf, I Kulesh, D **ao… - Nature …, 2023 - nature.com
Cooper pairs occupy the ground state of superconductors and are typically composed of
maximally entangled electrons with opposite spin. In order to study the spin and …

Robust poor man's Majorana zero modes using Yu-Shiba-Rusinov states

F Zatelli, D van Driel, D Xu, G Wang, CX Liu… - Nature …, 2024 - nature.com
Kitaev chains in quantum dot-superconductor arrays are a promising platform for the
realization of topological superconductivity. As recently demonstrated, even a two-site chain …

Non-Majorana states yield nearly quantized conductance in proximatized nanowires

P Yu, J Chen, M Gomanko, G Badawy, E Bakkers… - Nature Physics, 2021 - nature.com
Semiconductor nanowires with proximity-induced superconductivity are leading contenders
for manifesting Majorana fermions in condensed matter,,,–. However, unambiguous …

Majorana qubits and non-abelian physics in quantum dot–based minimal Kitaev chains

A Tsintzis, RS Souto, K Flensberg, J Danon, M Leijnse - PRX quantum, 2024 - APS
The possibility of engineering artificial Kitaev chains in arrays of quantum dots coupled via
narrow superconducting regions has emerged as an attractive way to overcome the disorder …

Crossed Andreev reflection and elastic cotunneling in three quantum dots coupled by superconductors

A Bordin, X Li, D Van Driel, JC Wolff, Q Wang… - Physical review …, 2024 - APS
The formation of a topological superconducting phase in a quantum-dot–based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic cotunneling. Here, we …

Trivial andreev band mimicking topological bulk gap reopening in the nonlocal conductance of long rashba nanowires

R Hess, HF Legg, D Loss, J Klinovaja - Physical Review Letters, 2023 - APS
We consider a one-dimensional Rashba nanowire in which multiple Andreev bound states
in the bulk of the nanowire form an Andreev band. We show that, under certain …

Local and nonlocal transport spectroscopy in planar Josephson junctions

A Banerjee, O Lesser, MA Rahman, C Thomas… - Physical review …, 2023 - APS
We report simultaneously acquired local and nonlocal transport spectroscopy in a phase-
biased planar Josephson junction based on an epitaxial InAs-Al hybrid two-dimensional …

Parity-protected superconducting diode effect in topological Josephson junctions

HF Legg, K Laubscher, D Loss, J Klinovaja - Physical Review B, 2023 - APS
In bulk superconductors or Josephson junctions formed in materials with spin-orbit
interaction, the critical current can depend on the direction of current flow or of applied …

Conductance-matrix symmetries of a three-terminal hybrid device

GC Ménard, GLR Anselmetti, EA Martinez, D Puglia… - Physical Review Letters, 2020 - APS
We present conductance-matrix measurements of a three-terminal superconductor-
semiconductor hybrid device consisting of two normal leads and one superconducting lead …