"Физика и техника полупроводников"
Вышедшие номера
Quantum dynamics of a domain wall in the presence of dephasing
Переводная версия: 10.1134/S1063782618040085
US Army Research Office, W911NF-14-1-0272
US National Science Foundation, PHY-1416578
UK Engineering and Physical Sciences Research Council , EP/K028960/1
UK Engineering and Physical Sciences Research Council , EP/M007065/1
Castelnovo Claudio1, Dykman Mark I.2, Smelyanskiy Vadim N.3, Moessner Roderich4, Pryadko Leonid P.5
1T.C.M.Group, Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE, U.K.
2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan USA
3Google Inc., Venice, California, USA
4Max-Planck-Institut fur Physik komplexer Systeme, Dresden, Germany
5Department of Physics & Astronomy, University of California, Riverside, California, USA
Email: leonid.pryadko@ucr.edu
Выставление онлайн: 20 марта 2018 г.

We compare quantum dynamics in the presence of Markovian dephasing for a particle hopping on a chain and for an Ising domain wall whose motion leaves behind a string of flipped spins. Exact solutions show that on an infinite chain,the transport responses of the models are nearly identical. However, on finite-length chains, the broadening of discrete spectral lines is much more noticeable in the case of a domain wall. Acknowledgments This work was supported in part by the ARO grant W911NF-14-1-0272, the NSF grant PHY-1416578, and EPSRC grants EP /K028960/1 and EP/M007065/1.

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