Reck, Phillipp and Gorini, Cosimo and Richter, Klaus (2020) Steering Zitterbewegung in driven Dirac systems: From persistent modes to echoes. PHYSICAL REVIEW B, 101 (9): 094306. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
Although Zitterbewegung-the jittery motion of relativistic particles-was known since 1930 and was predicted in solid-state systems long ago, it has been directly measured so far only in so-called quantum simulators, i.e., quantum systems under strong control, such as trapped ions and Bose-Einstein condensates. A reason for the lack of further experimental evidence is the transient nature of wave-packet Zitterbewegung. Here, we study how the jittery motion can be manipulated in Dirac systems via time-dependent potentials with the goal of slowing down/preventing its decay or of generating its revival. For the harmonic driving of a mass term, we find persistent Zitterbewegung modes in pristine, i.e., scattering free, systems. Furthermore, an effective time-reversal protocol-the "Dirac quantum time mirror"-is shown to retrieve Zitterbewegung through echoes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BLOCH OSCILLATIONS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Mar 2021 12:02 |
| Last Modified: | 29 Mar 2021 12:02 |
| URI: | https://pred.uni-regensburg.de/id/eprint/44940 |
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