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Precession of entangled spin and pseudospin in double quantum dots
Rohrmeier, Christoph
und Donarini, Andrea
(2022)
Precession of entangled spin and pseudospin in double quantum dots.
Physical Review B 105 (20), S. 205418.
Veröffentlichungsdatum dieses Volltextes: 24 Mai 2022 08:54
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.52325
Zusammenfassung
Quantum dot spin valves are characterized by exchange fields which induce spin precession and generate current spin resonances even in the absence of spin splitting. Analogous effects have been studied in double quantum dots, in which the orbital degree of freedom, the pseudospin, replaces the spin in the valve configuration. We generalize, now, this setup to allow for arbitrary spin and orbital ...
Quantum dot spin valves are characterized by exchange fields which induce spin precession and generate current spin resonances even in the absence of spin splitting. Analogous effects have been studied in double quantum dots, in which the orbital degree of freedom, the pseudospin, replaces the spin in the valve configuration. We generalize, now, this setup to allow for arbitrary spin and orbital polarization of the leads, thus obtaining an even richer variety of current resonances, stemming from the precession dynamics of entangled spin and pseudospin. We observe for both vectors a delicate interplay of decoherence, pumping, and precession which can only be understood by also considering the dynamics of the spin-pseudospin correlators. The numerical results are obtained in the framework of a generalized master equation within the cotunneling approximation and are complemented by the analytics of a coherent sequential tunneling model.
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Rohrmeier, ChristophVorschau
und Donarini, Andrea
(2022)
Precession of entangled spin and pseudospin in double quantum dots.
Physical Review B 105 (20), S. 205418.
[Gegenwärtig angezeigt]-
Rohrmeier, Christoph
und Donarini, Andrea
(2022)
Data archive of "Precession of entangled spin and pseudospin in double quantum dots".
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Details
| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Physical Review B | ||||
| Verlag: | AMER PHYSICAL SOC | ||||
|---|---|---|---|---|---|
| Ort der Veröffentlichung: | COLLEGE PK | ||||
| Band: | 105 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 20 | ||||
| Seitenbereich: | S. 205418 | ||||
| Datum | 13 Mai 2022 | ||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Grifoni > Arbeitsgruppe Milena Grifoni | ||||
| Identifikationsnummer |
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| Verwandte URLs |
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| Stichwörter / Keywords | ; | ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Ja | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-523250 | ||||
| Dokumenten-ID | 52325 |
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