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Non-local Andreev reflection through Andreev molecular states in graphene Josephson junctions

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1 Published in 2022 at "2D Materials"

DOI: 10.1088/2053-1583/acce4b

Abstract: We propose that a device composed of two vertically stacked monolayer graphene Josephson junctions can be used for Cooper pair splitting. The hybridization of the Andreev bound states of the two Josephson junction can facilitate… read more here.

Keywords: josephson junctions; graphene josephson; non local; andreev ... See more keywords

Dephasing and leakage dynamics of noisy Majorana-based qubits: Topological versus Andreev

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0 Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.075404

Abstract: Topological quantum computation encodes quantum information nonlocally by nucleating non-Abelian anyons separated by distances $L$, typically spanning the qubit device size. This nonlocality renders topological qubits exponentially immune to dephasing from all sources of classical… read more here.

Keywords: leakage; based qubits; andreev; majorana based ... See more keywords

Ballistic Andreev interferometers

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0 Published in 2024 at "Physical Review B"

DOI: 10.1103/physrevb.110.235419

Abstract: A Josephson junction, formed between two phase-biased superconductors and a normal metal, hosts a discrete spectrum of Andreev bound states (ABS). In this paper, we develop a theory for long ballistic Andreev interferometers in two-dimensional… read more here.

Keywords: andreev; spectroscopy; andreev interferometers; ballistic andreev ... See more keywords

Simple Floquet-Wannier-Stark-Andreev viewpoint and emergence of low-energy scales in a voltage-biased three-terminal Josephson junction

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0 Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.95.085415

Abstract: A three-terminal Josephson junction consists of three superconductors coupled coherently to a small nonsuperconducting island, such as a diffusive metal, a single or double quantum dot. A specific resonant single quantum dot three-terminal Josephson junction… read more here.

Keywords: terminal josephson; andreev; josephson junction; three terminal ... See more keywords

Microwave Signature of Topological Andreev level Crossings in a Bismuth-based Josephson Junction.

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0 Published in 2019 at "Physical review letters"

DOI: 10.1103/physrevlett.122.076802

Abstract: Demonstrating the topological protection of Andreev states in Josephson junctions is an experimental challenge. In particular the telltale 4π periodicity expected for the current phase relation has remained elusive, because of fast parity breaking processes.… read more here.

Keywords: andreev level; andreev; josephson junction; level crossings ... See more keywords