Quantum phase transition and protected ideal transport in a Kondo chain
Abstract
We study the low energy physics of a Kondo chain where electrons from a one-dimensional band interact with magnetic moments via an anisotropic exchange interaction. It is demonstrated that the anisotropy gives rise to two different phases which are separated by a quantum phase transition. In the phase with easy plane anisotropy, Z2 symmetry between sectors with different helicity of the electrons is broken. As a result, localization effects are suppressed and the dc transport acquires (partial) symmetry protection. This effect is similar to the protection of the edge transport in time-reversal invariant topological insulators. The phase with easy axis anisotropy corresponds to the Tomonaga-Luttinger liquid with a pronounced spin-charge separation. The slow charge density wave modes have no protection against localizatioin.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Ludwig Maximilian Univ., Munich (Germany)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1226074
- Alternate Identifier(s):
- OSTI ID: 1226098
- Report Number(s):
- BNL-108562-2015-JA
Journal ID: ISSN 0031-9007; R&D Project: PO015; KC0202030
- Grant/Contract Number:
- SC00112704; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 115; Journal Issue: 21; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Tsvelik, A. M., and Yevtushenko, O. M. Quantum phase transition and protected ideal transport in a Kondo chain. United States: N. p., 2015.
Web. doi:10.1103/PhysRevLett.115.216402.
Tsvelik, A. M., & Yevtushenko, O. M. Quantum phase transition and protected ideal transport in a Kondo chain. United States. https://doi.org/10.1103/PhysRevLett.115.216402
Tsvelik, A. M., and Yevtushenko, O. M. Mon .
"Quantum phase transition and protected ideal transport in a Kondo chain". United States. https://doi.org/10.1103/PhysRevLett.115.216402. https://www.osti.gov/servlets/purl/1226074.
@article{osti_1226074,
title = {Quantum phase transition and protected ideal transport in a Kondo chain},
author = {Tsvelik, A. M. and Yevtushenko, O. M.},
abstractNote = {We study the low energy physics of a Kondo chain where electrons from a one-dimensional band interact with magnetic moments via an anisotropic exchange interaction. It is demonstrated that the anisotropy gives rise to two different phases which are separated by a quantum phase transition. In the phase with easy plane anisotropy, Z2 symmetry between sectors with different helicity of the electrons is broken. As a result, localization effects are suppressed and the dc transport acquires (partial) symmetry protection. This effect is similar to the protection of the edge transport in time-reversal invariant topological insulators. The phase with easy axis anisotropy corresponds to the Tomonaga-Luttinger liquid with a pronounced spin-charge separation. The slow charge density wave modes have no protection against localizatioin.},
doi = {10.1103/PhysRevLett.115.216402},
journal = {Physical Review Letters},
number = 21,
volume = 115,
place = {United States},
year = {Mon Nov 30 00:00:00 EST 2015},
month = {Mon Nov 30 00:00:00 EST 2015}
}
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Works referencing / citing this record:
Symmetry-protected topological phase transition in one-dimensional Kondo lattice and its realization with ultracold atoms
journal, October 2017
- Nakagawa, Masaya; Kawakami, Norio
- Physical Review B, Vol. 96, Issue 15
Kondo Impurities Coupled to Helical Luttinger Liquid: RKKY-Kondo Physics Revisited
text, January 2017
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- arXiv
Kondo Impurities Coupled to a Helical Luttinger Liquid: RKKY-Kondo Physics Revisited
journal, April 2018
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- Physical Review Letters, Vol. 120, Issue 14
Doped Kondo chain, a heavy Luttinger liquid
journal, April 2018
- Khait, Ilia; Azaria, Patrick; Hubig, Claudius
- Proceedings of the National Academy of Sciences, Vol. 115, Issue 20
Doped Kondo chain, a heavy Luttinger liquid
text, January 2017
- Khait, Ilia; Azaria, Patrick; Hubig, Claudius
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