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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. arXiv. (Eingereicht)

Veröffentlichungsdatum dieses Volltextes: 19 Jun 2018 13:00
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DOI zum Zitieren dieses Dokuments: 10.5283/epub.37412

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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 non- homogeneous 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 ZeitschriftarXiv
Verlag:arXiv.org
Seitenanzahl:22
Datum25 Mai 2018
InstitutionenPhysik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Klaus Richter
Identifikationsnummer
WertTyp
1805.10160arXiv-ID
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusEingereicht
BegutachtetNein, diese Version wurde noch nicht begutachtet (bei preprints)
An der Universität Regensburg entstandenZum Teil
URN der UB Regensburgurn:nbn:de:bvb:355-epub-374127
Dokumenten-ID37412

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