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Correlations in low-dimensional quantum many-particle systems


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Title: Correlations in low-dimensional quantum many-particle systems
Authors: Eriksson, Erik
E-mail: erik.eriksson@physics.gu.se
Issue Date: 8-May-2013
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Physics ; Institutionen för fysik
Parts of work: I. Erik Eriksson and Henrik Johannesson, Reduced fidelity in topological quantum phase transitions, Phys. Rev. A 79, 060301(R) (2009).
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II. Erik Eriksson and Henrik Johannesson, Corrections to scaling in entanglement entropy from boundary perturbations, J. Stat. Mech. (2011) P02008.
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III. Erik Eriksson and Henrik Johannesson, Impurity entanglement entropy in Kondo systems from conformal field theory, Phys. Rev. B 84, 041107(R) (2011).
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IV. Erik Eriksson, Anders Ström, Girish Sharma, and Henrik Johannesson, Electrical control of the Kondo effect in a helical edge liquid, Phys. Rev. B 86, 161103(R) (2012).
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V. Erik Eriksson, Spin-orbit interactions in a helical Luttinger liquid with a Kondo impurity, arXiv:1303.3558.

VI. Erik Eriksson and Vladimir Korepin, Finite-size effects from higher conservation laws for the one-dimensional Bose gas, arXiv:1302.3182. (To appear in J. Phys. A: Math. Theor.)
Date of Defence: 2013-05-31
Disputation: Fredagen den 31 maj 2013, kl 13.15, Hörsal Euler, Skeppsgränd 3
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Abstract: This thesis concerns correlation effects in quantum many-particle systems in one and two dimensions. Such systems show many exotic non-Fermi liquid phenomena, which can be treated analytically using non-perturbative field-theory methods. Quantum phase transitions between topologically ordered phases of matter, which do not break any symmetries, are studied. It is shown that although there is no local order parameter, a local measure from quantum information theory called reduced fidelity can de... more
ISBN: 978-91-628-8707-0
URI: http://hdl.handle.net/2077/32678
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för fysik

 

 

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