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Article: Nearly noninvasive readout and manipulation of spin in double quantum dot using spin bias

TitleNearly noninvasive readout and manipulation of spin in double quantum dot using spin bias
Authors
Issue Date2011
PublisherSpringer Verlag. The Journal's web site is located at http://www.edpsciences.org/journal/index.cfm?edpsname=epjb
Citation
European Physical Journal B, 2011, v. 83 n. 1, p. 69-75 How to Cite?
AbstractDynamics of two quantum dots coupled to electrodes with spin bias is investigated theoretically by means of the master equations. The two dots are coupled via exchange interaction. When the exchange interaction is much smaller than the lead-dot 2 coupling and dot 2 is under a symmetric spin bias, an initially fully polarized electron spin in dot 1 undergoes an oscillation with ignorable attenuation. Meanwhile, the direction of charge current flowing through dot 2 oscillates in the same period as that of the spin in dot 1. This allows to reverse or nearly noninvasively read out the spin in dot 1, by switching on and off the exchange interaction for a duration of half-integer or integer periods of the oscillation, respectively. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
Persistent Identifierhttp://hdl.handle.net/10722/147672
ISSN
2015 Impact Factor: 1.223
2015 SCImago Journal Rankings: 0.524
ISI Accession Number ID
Funding AgencyGrant Number
Research Grant Council of Hong KongHKU 704809
HKU 10/CRF/08
NSFC10640420151
10974112
National Basic Research Program of China (973 Program)2011CB606405
Funding Information:

This work is supported by the Research Grant Council of Hong Kong under Grant Nos. HKU 704809 and HKU 10/CRF/08. R. Lu is supported by the NSFC (Grant Nos. 10640420151 and 10974112) and the National Basic Research Program of China (973 Program) Grant No. 2011CB606405.

References

 

DC FieldValueLanguage
dc.contributor.authorLu, HZen_HK
dc.contributor.authorLü, Ren_HK
dc.contributor.authorShen, SQen_HK
dc.date.accessioned2012-05-29T06:07:39Z-
dc.date.available2012-05-29T06:07:39Z-
dc.date.issued2011en_HK
dc.identifier.citationEuropean Physical Journal B, 2011, v. 83 n. 1, p. 69-75en_HK
dc.identifier.issn1434-6028en_HK
dc.identifier.urihttp://hdl.handle.net/10722/147672-
dc.description.abstractDynamics of two quantum dots coupled to electrodes with spin bias is investigated theoretically by means of the master equations. The two dots are coupled via exchange interaction. When the exchange interaction is much smaller than the lead-dot 2 coupling and dot 2 is under a symmetric spin bias, an initially fully polarized electron spin in dot 1 undergoes an oscillation with ignorable attenuation. Meanwhile, the direction of charge current flowing through dot 2 oscillates in the same period as that of the spin in dot 1. This allows to reverse or nearly noninvasively read out the spin in dot 1, by switching on and off the exchange interaction for a duration of half-integer or integer periods of the oscillation, respectively. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.en_HK
dc.languageengen_US
dc.publisherSpringer Verlag. The Journal's web site is located at http://www.edpsciences.org/journal/index.cfm?edpsname=epjben_HK
dc.relation.ispartofEuropean Physical Journal Ben_HK
dc.titleNearly noninvasive readout and manipulation of spin in double quantum dot using spin biasen_HK
dc.typeArticleen_HK
dc.identifier.emailLu, HZ: luhz@hku.hken_HK
dc.identifier.emailShen, SQ: sshen@hkucc.hku.hken_HK
dc.identifier.authorityLu, HZ=rp01599en_HK
dc.identifier.authorityShen, SQ=rp00775en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1140/epjb/e2011-10648-6en_HK
dc.identifier.scopuseid_2-s2.0-80755140541en_HK
dc.identifier.hkuros205669-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80755140541&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume83en_HK
dc.identifier.issue1en_HK
dc.identifier.spage69en_HK
dc.identifier.epage75en_HK
dc.identifier.isiWOS:000295334400011-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridLu, HZ=24376662200en_HK
dc.identifier.scopusauthoridLü, R=26643365900en_HK
dc.identifier.scopusauthoridShen, SQ=7403431266en_HK
dc.identifier.citeulike9818591-

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