Quantum Dynamics of a Domain Wall in the Presence of Dephasing

Claudio Castelnovo; M. I. Dykman; V. N. Smelyanskiy; R. Moessner; L. P. Pryadko

doi:10.1134/S1063782618040085

Quantum Dynamics of a Domain Wall in the Presence of Dephasing

Авторлар: Castelnovo C.¹, Dykman M.², Smelyanskiy V.³, Moessner R.⁴, Pryadko L.⁵
Мекемелер:
1. T.C.M. Group, Cavendish Laboratory
2. Department of Physics and Astronomy
3. Google Inc.
4. Max-Planck-Institut für Physik komplexer Systeme
5. Department of Physics & Astronomy
Шығарылым: Том 52, № 4 (2018)
Беттер: 539-542
Бөлім: XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, June 26–30, 2017. Spin Related Phenomena In Nanostructures
URL: https://journals.rcsi.science/1063-7826/article/view/202964
DOI: https://doi.org/10.1134/S1063782618040085
ID: 202964

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Аннотация

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 finitelength chains, the broadening of discrete spectral lines is much more noticeable in the case of a domain wall.