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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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| Dokumentenart | Artikel | ||||||
| Titel eines Journals oder einer Zeitschrift | Physical Review B (PRB) | ||||||
| Verlag: | American Physical Society | ||||||
|---|---|---|---|---|---|---|---|
| Band: | 98 | ||||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 12 | ||||||
| Seitenanzahl: | 22 | ||||||
| Seitenbereich: | S. 125421 | ||||||
| Datum | 24 September 2018 | ||||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Klaus Richter | ||||||
| Identifikationsnummer |
| ||||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||||
| Status | Veröffentlicht | ||||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||||
| An der Universität Regensburg entstanden | Zum Teil | ||||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-377873 | ||||||
| Dokumenten-ID | 37787 |
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