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DiracEntangler SIGNED

Cooper pair splitter based on Dirac materials

Total Cost €

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EC-Contrib. €

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Partnership

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 DiracEntangler project word cloud

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Project "DiracEntangler" data sheet

The following table provides information about the project.

Coordinator
AALTO KORKEAKOULUSAATIO SR 

Organization address
address: OTAKAARI 1
city: ESPOO
postcode: 2150
website: http://www.aalto.fi/en/

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Finland [FI]
 Project website https://www.aalto.fi/en/news/marie-sklodowska-curie-fellowship-awarded-to-study-spin-entanglement-and-dirac-materials
 Total cost 179˙325 €
 EC max contribution 179˙325 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2017
 Duration (year-month-day) from 2017-04-01   to  2019-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    AALTO KORKEAKOULUSAATIO SR FI (ESPOO) coordinator 179˙325.00

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 Project objective

Cooper pairs splitters (CPS) are promising candidate devices for solid-state sources of spin entanglement; a long-sought goal of outstanding impact in the development of quantum technologies. Recent experiments have reported high splitting efficiencies but measurements can not resolve individual splitting events and are limited to time-averaged current and noise. In this project, I will go beyond existing proposals for CPS devices exploring the regime of a single or a few emitted pairs by exploiting the unique transport properties of Dirac materials (DM). The electronic states in DM have long coherence lengths comparable to the typical device size and are protected by symmetry against material imperfections, allowing us to use them as ideal single-channel electron guides. First, I will employ Green’s function techniques adapted to Dirac systems to develop a new formulation of the Full Counting Statistics (FCS) of junctions between DM and superconductors. FCS provides more information about a particular system than just the mean current or noise. Further, by characterizing the Waiting Time Distribution (WTD) between two subsequent charge transfers, the short-time physics of these junctions can be understood. I will develop this novel theory to study the possible synchronized detection of individual electrons from a split Cooper pair. The WTD theory for superconducting hybrids remains almost completely unexplored; therefore, this project fills a knowledge gap, which is crucial for the development of future quantum technologies. Importantly, the theoretical framework developed in this project can be immediately applied to study engineered topological superconductivity and to simulate graphene-based CPS devices, currently under experimental development at Aalto University. As a result, this proposal will yield valuable information about entanglement generation in solid-state devices, advancing the fields of spintronics and quantum information technologies.

 Publications

year authors and title journal last update
List of publications.
2019 Oscar E. Casas, Shirley Gómez Páez, Alfredo Levy Yeyati, Pablo Burset, William J. Herrera
Subgap states in two-dimensional spectroscopy of graphene-based superconducting hybrid junctions
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.99.144502
Physical Review B 99/14 2019-06-06
2019 Pablo Burset, Janne Kotilahti, Michael Moskalets, Christian Flindt
Time‐Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses
published pages: 1900014, ISSN: 2511-9044, DOI: 10.1002/qute.201900014
Advanced Quantum Technologies 2/3-4 2019-06-06
2017 Jonas Wiedenmann, Eva Liebhaber, Johannes Kübert, Erwann Bocquillon, Pablo Burset, Christopher Ames, Hartmut Buhmann, Teun M. Klapwijk, Laurens W. Molenkamp
Transport spectroscopy of induced superconductivity in the three-dimensional topological insulator HgTe
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.165302
Physical Review B 96/16 2019-06-06
2018 Shuo Mi, Pablo Burset, Christian Flindt
Electron waiting times in hybrid junctions with topological superconductors
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-018-34776-y
Scientific Reports 8/1 2019-06-06
2018 Rafael Sánchez, Pablo Burset, Alfredo Levy Yeyati
Cooling by Cooper pair splitting
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.241414
Physical Review B 98/24 2019-06-06
2017 Pablo Burset, Bo Lu, Shun Tamura, Yukio Tanaka
Current fluctuations in unconventional superconductor junctions with impurity scattering
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.95.224502
Physical Review B 95/22 2019-06-06
2018 Daniel Breunig, Pablo Burset, Björn Trauzettel
Creation of Spin-Triplet Cooper Pairs in the Absence of Magnetic Ordering
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.120.037701
Physical Review Letters 120/3 2019-06-06
2018 Felix Keidel, Pablo Burset, Björn Trauzettel
Tunable hybridization of Majorana bound states at the quantum spin Hall edge
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.075408
Physical Review B 97/7 2019-06-06
2017 Oleksiy Kashuba, Björn Sothmann, Pablo Burset, Björn Trauzettel
Majorana STM as a perfect detector of odd-frequency superconductivity
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.95.174516
Physical Review B 95/17 2019-06-06
2018 Sun-Yong Hwang, Pablo Burset, Björn Sothmann
Odd-frequency superconductivity revealed by thermopower
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.161408
Physical Review B 98/16 2019-06-06

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