Emergent universality and quantum critical points in multi-orbital Anderson models

We apply a joint Renormalised Perturbation Theory and Numerical Renormalisation Group approach to the study of an n-orbital Anderson Model with a Hund's Rule Coupling. We apply the same methods to the analysis of a two-impurity Anderson model, and find the emergence of a single renormalised ene...

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Bibliographic Details
Main Author:	Crow, Daniel
Other Authors:	Hewson, Alex
Published:	Imperial College London 2013
Subjects:	510
Online Access:	http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592733

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spelling	ndltd-bl.uk-oai-ethos.bl.uk-5927332015-12-03T03:45:54ZEmergent universality and quantum critical points in multi-orbital Anderson modelsCrow, DanielHewson, Alex2013We apply a joint Renormalised Perturbation Theory and Numerical Renormalisation Group approach to the study of an n-orbital Anderson Model with a Hund's Rule Coupling. We apply the same methods to the analysis of a two-impurity Anderson model, and find the emergence of a single renormalised energy scale on the approach to two types of quantum critical point, such that it is possible to characterise the low energy physics in terms of this energy scale alone.510Imperial College Londonhttp://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592733http://hdl.handle.net/10044/1/12806Electronic Thesis or Dissertation
collection	NDLTD
sources	NDLTD
topic	510
spellingShingle	510 Crow, Daniel Emergent universality and quantum critical points in multi-orbital Anderson models
description	We apply a joint Renormalised Perturbation Theory and Numerical Renormalisation Group approach to the study of an n-orbital Anderson Model with a Hund's Rule Coupling. We apply the same methods to the analysis of a two-impurity Anderson model, and find the emergence of a single renormalised energy scale on the approach to two types of quantum critical point, such that it is possible to characterise the low energy physics in terms of this energy scale alone.
author2	Hewson, Alex
author_facet	Hewson, Alex Crow, Daniel
author	Crow, Daniel
author_sort	Crow, Daniel
title	Emergent universality and quantum critical points in multi-orbital Anderson models
title_short	Emergent universality and quantum critical points in multi-orbital Anderson models
title_full	Emergent universality and quantum critical points in multi-orbital Anderson models
title_fullStr	Emergent universality and quantum critical points in multi-orbital Anderson models
title_full_unstemmed	Emergent universality and quantum critical points in multi-orbital Anderson models
title_sort	emergent universality and quantum critical points in multi-orbital anderson models
publisher	Imperial College London
publishDate	2013
url	http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.592733
work_keys_str_mv	AT crowdaniel emergentuniversalityandquantumcriticalpointsinmultiorbitalandersonmodels
_version_	1718142614041001984

Emergent universality and quantum critical points in multi-orbital Anderson models

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