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Reck, Phillipp ; Gorini, Cosimo ; Richter, Klaus

Quantum time mirrors for general two-band systems

Reck, Phillipp , Gorini, Cosimo und Richter, Klaus (2018) Quantum time mirrors for general two-band systems. Physical Review B (PRB) 98 (12), S. 125421.

Veröffentlichungsdatum dieses Volltextes: 10 Okt 2018 13:35
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.37787

Dies ist die aktuelle Version dieses Eintrags.


Zusammenfassung

Methods that are devised to achieve reversal of quantum dynamics in time have been named “quatum time mirrors.” Such a time mirror can be considered as a generalization of Hahn's spin echo to systems with continuous degrees of freedom. We extend the quantum time mirror protocol originally proposed for Dirac dispersions to arbitrary two-band systems and establish the general requirements for its ...

Methods that are devised to achieve reversal of quantum dynamics in time have been named “quatum time mirrors.” Such a time mirror can be considered as a generalization of Hahn's spin echo to systems with continuous degrees of freedom. We extend the quantum time mirror protocol originally proposed for Dirac dispersions to arbitrary two-band systems and establish the general requirements for its efficient implementation. We further discuss its sensitivity to various nonhomogeneous perturbations including disorder potentials and the effect of external static magnetic and electric fields. Our general statements are verified for a number of exemplary Hamiltonians, whose phase-coherent dynamics are studied both analytically and numerically. The Hamiltonians considered can be used to describe the low-energy properties of systems as diverse as cold atom-optics setups, direct band gap semiconductors, or (mono- or bilayer) graphene. We discuss the consequences of many-body effects at a qualitative level, and consider the protocol feasibility in state-of-the-art experimental setups.



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftPhysical Review B (PRB)
Verlag:American Physical Society
Band:98
Nummer des Zeitschriftenheftes oder des Kapitels:12
Seitenanzahl:22
Seitenbereich:S. 125421
Datum24 September 2018
InstitutionenPhysik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Klaus Richter
Identifikationsnummer
WertTyp
10.1103/PhysRevB.98.125421DOI
1805.10160arXiv-ID
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenZum Teil
URN der UB Regensburgurn:nbn:de:bvb:355-epub-377873
Dokumenten-ID37787

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