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Author
dc.contributor.author
Scherubl, Z 
Author
dc.contributor.author
Palyi, A 
Author
dc.contributor.author
Csonka, S 
Availability Date
dc.date.accessioned
2020-04-06T18:42:31Z
Availability Date
dc.date.available
2020-04-06T18:42:31Z
Release
dc.date.issued
2014
uri
dc.identifier.uri
http://hdl.handle.net/10831/43195
Abstract
dc.description.abstract
A superconductor is a natural source of spin-entangled spatially separated electron pairs. Although the first Cooper-pair splitter devices have been realized recently, an experimental confirmation of the spin state and the entanglement of the emitted electron pairs has been lacking up to now. In this paper, a method is proposed to confirm the spin-singlet character of individual split Cooper pairs. Two quantum dots (QDs), each of them holding one spin-prepared electron, serve as the detector of the spin state of a single Cooper pair that is forced to split when it tunnels out from the superconductor to the QDs. The number of charges on the QDs, measured at the end of the procedure, carries information on the spin state of the extracted Cooper pair. The method relies on the experimentally established toolkit of QD-based spin qubits: resonant spin manipulation, Pauli blockade, and charge measurement.
Language
dc.language
Angol
Title
dc.title
Probing individual split Cooper pairs using the spin qubit toolkit
Type
dc.type
folyóiratcikk
Date Change
dc.date.updated
2019-07-16T12:07:32Z
Note
dc.description.note
Funding Agency and Grant Number: EU ERC [CooPairEnt 258789, FP7 SE2ND 271554]; EUMarie Curie Grant [CIG-293834]; EU GEOMDISS project; Hungarian Grants [OTKA CNK80991, OTKA PD 100373]; Bolyai Scholarship Funding text: We acknowledge useful discussions with Janos Asboth, Andreas Baumgartner, Bernd Braunecker, Guido Burkard, Peter Domokos, Karsten Flensberg, Ferdinand Kummeth, Zoltan Kurucz, Edward Laird, Martin Leijnse, Peter Makk, Charles Marcus, Pascu Moca, Vlad Pribiag, Christian Schoenenberger, and Gergely Zarand. We acknowledge support from EU ERC CooPairEnt 258789, FP7 SE2ND 271554, the EUMarie Curie Grant No. CIG-293834, the EU GEOMDISS project, and Hungarian Grants No. OTKA CNK80991 and No. OTKA PD 100373. A. P. and S. C. are supported by the Bolyai Scholarship.
Doi ID
dc.identifier.doi
10.1103/PhysRevB.89.205439
Wos ID
dc.identifier.wos
000338037300011
ID Scopus
dc.identifier.scopus
84902126364
MTMT ID
dc.identifier.mtmt
2712163
Issue Number
dc.identifier.issue
20
abbreviated journal
dc.identifier.jabbrev
PHYS REV B
Journal
dc.identifier.jtitle
PHYSICAL REVIEW B
Volume Number
dc.identifier.volume
89
Release Date
dc.description.issuedate
2014
department of Author
dc.contributor.institution
MTA-BME Kondenzált Anyagok Fizikája Kutatócsoport
department of Author
dc.contributor.institution
Nanoelektronika Kutatócsoport
department of Author
dc.contributor.institution
Fizika Tanszék
department of Author
dc.contributor.institution
Fizika Doktori Iskola
department of Author
dc.contributor.institution
MTA-BME Lendület Egzotikus Kvantumfázis Kutatócsoport
department of Author
dc.contributor.institution
MTA-BME Elektrontranszport Szilárd Testekben Kutatócsoport
department of Author
dc.contributor.institution
Anyagfizikai Tanszék
Author institution
dc.contributor.department
Fizika Tanszék
Author institution
dc.contributor.department
MTA-BME Lendület Egzotikus Kvantumfázis Kutatócsoport
Author institution
dc.contributor.department
Fizika Tanszék


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Probing individual split Cooper pairs using the spin qubit toolkit
 

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