Quantum dynamics of a domain wall in the presence of dephasing
Dykman, Mark I
Smelyanskiy, Vadim N
Pryadko, Leonid P
25th International Symposium on n Nanostructures: Physics and Technology
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Castelnovo, C., Dykman, M. I., Smelyanskiy, V. N., Moessner, R., & Pryadko, L. P. (2017). Quantum dynamics of a domain wall in the presence of dephasing. Symposium Proceedings http://www.ioffe.ru/NANO2017
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.
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.
External link: http://www.ioffe.ru/NANO2017
This record's URL: https://www.repository.cam.ac.uk/handle/1810/273739