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Topological characterization of chiral models through their long time dynamics

Author
Maffei, M.; dauphin, A.; Cardano, F.; Lewenstein, M.; Massignan, P.
Type of activity
Journal article
Journal
New journal of physics
Date of publication
2018-01-16
Volume
20
DOI
https://doi.org/10.1088/1367-2630/aa9d4c Open in new window
Repository
http://hdl.handle.net/2117/127231 Open in new window
URL
http://iopscience.iop.org/article/10.1088/1367-2630/aa9d4c/meta Open in new window
Abstract
We study chiral models in one spatial dimension, both static and periodically driven. We demonstrate that their topological properties may be read out through the long time limit of a bulk observable, the mean chiral displacement. The derivation of this result is done in terms of spectral projectors, allowing for a detailed understanding of the physics. We show that the proposed detection converges rapidly and it can be implemented in a wide class of chiral systems. Furthermore, it can measure a...
Citation
Maffei, M., dauphin, A., Cardano, F., Lewenstein, M., Massignan, P. Topological characterization of chiral models through their long time dynamics. "New journal of physics", 16 Gener 2018, vol. 20.
Keywords
Zak phase, measure of winding numbers, quantum simulation, topological insulators, winding number
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

Participants

  • Maffei, Maria  (author)
  • dauphin, Alexandre  (author)
  • Cardano, Filippo  (author)
  • Lewenstein, Maciej  (author)
  • Massignan, Pietro Alberto  (author)

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