Holographic impurities and Kondo effect
Holographic impurities and Kondo effect
Magnetic impurities are responsible for many interesting phenomena in condensed matter systems, notably the Kondo effect and quantum phase transitions. Here we present a holographic model of a magnetic impurity that captures the main physical properties of the large-spin Kondo effect. We estimate the screening length of the Kondo cloud that forms around the impurity from a calculation of entanglement entropy and show that our results are consistent with the g-theorem.
322-329
Erdmenger, Johanna
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Flory, Mario
885a9a77-31d9-41f8-a52b-f2289950385e
Hoyos, Carlos
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Newrzella, Max-Niklas
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O'Bannon, Andrew
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Wu, Jackson M.S.
824868eb-0ba0-42a7-ae9f-d340c98c0e32
21 March 2016
Erdmenger, Johanna
a6829342-7960-44ea-b502-fe531cde3f33
Flory, Mario
885a9a77-31d9-41f8-a52b-f2289950385e
Hoyos, Carlos
65bc37c2-67c7-44f0-8160-3cb7461adff6
Newrzella, Max-Niklas
66b93c36-ba08-4cef-ae80-ce51452e2047
O'Bannon, Andrew
f0c14b6c-5b74-4319-8432-f9eba1e20cf3
Wu, Jackson M.S.
824868eb-0ba0-42a7-ae9f-d340c98c0e32
Erdmenger, Johanna, Flory, Mario, Hoyos, Carlos, Newrzella, Max-Niklas, O'Bannon, Andrew and Wu, Jackson M.S.
(2016)
Holographic impurities and Kondo effect.
Fortschritte der Physik, 64 (4-5), .
(doi:10.1002/prop.201500079).
Abstract
Magnetic impurities are responsible for many interesting phenomena in condensed matter systems, notably the Kondo effect and quantum phase transitions. Here we present a holographic model of a magnetic impurity that captures the main physical properties of the large-spin Kondo effect. We estimate the screening length of the Kondo cloud that forms around the impurity from a calculation of entanglement entropy and show that our results are consistent with the g-theorem.
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1511.09362
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Accepted/In Press date: 14 November 2015
Published date: 21 March 2016
Additional Information:
Special Issue: Proceedings of the 21st European string workshop and 3rd COST MP1210 meeting “The String Theory Universe” Leuven, Belgium,September 7–11, 2015
Identifiers
Local EPrints ID: 412291
URI: http://eprints.soton.ac.uk/id/eprint/412291
ISSN: 1521-3978
PURE UUID: 624a1704-20f1-42de-942a-cc9c4c9aff0f
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Date deposited: 17 Jul 2017 13:26
Last modified: 15 Mar 2024 14:33
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Contributors
Author:
Johanna Erdmenger
Author:
Mario Flory
Author:
Carlos Hoyos
Author:
Max-Niklas Newrzella
Author:
Jackson M.S. Wu
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