Email this article Zhidkost' Lattinzhera s prityazheniem i odnoy primes'yu: tochnoe reshenie
- Authors: Afonin V.V1
-
Affiliations:
- Ioffe Institute, Russian Academy of Sciences
- Issue: Vol 163, No 2 (2023)
- Pages: 238-259
- Section: Articles
- URL: https://journals.rcsi.science/0044-4510/article/view/145258
- DOI: https://doi.org/10.31857/S0044451023020104
- EDN: https://elibrary.ru/OQVIHH
- ID: 145258
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Abstract
The exact solution to the problem of scattering of one-dimensional attracted fermions on a point impurity, which exists in the Kane–Fisher model is analyzed for a Luttinger parameter equal to 2. The expression obtained for the frequency dependence of the coefficient of fermion reflection from an impurity demonstrates impossibility of extrapolation of results for a relatively weak fermion–fermion interaction to the range of coupling constants on the order of unity.
About the authors
V. V Afonin
Ioffe Institute, Russian Academy of Sciences
Author for correspondence.
Email: vasili.afonin@mail.ioffe.ru
194021, St. Petersburg, Russia
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