Statics and Dynamics of Weakly Coupled Antiferromagnetic Spin-1/2 Ladders in a Magnetic Field

By (author) Bouillot, Pierre

This thesis shows how a combination of analytic and numerical techniques, such as a time dependent and finite temperature Density Matrix Renormalization Group (DMRG) technique, can be used to obtain the physical properties of low dimensional quantum magnets with an unprecedented level of accuracy. A comparison between the theory and experiment then enables these systems to be used as quantum simulators; for example, to test various generic properties of low dimensional systems such as Luttinger liquid physics, the paradigm of one dimensional interacting quantum systems. Application of these techniques to a material made of weakly coupled ladders (BPCB) allowed the first quantitative test of Luttinger liquids. In addition, other physical quantities (magnetization, specific heat etc.), and more remarkably the spins-spin correlations - directly measurable in neutron scattering experiments - were in excellent agreement with the observed quantities. We thus now have tools to quantitatiively assess the dynamics for this class of quantum systems.

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[目次]

  • Introduction.- Spin-1/2 ladders.- Methods.- Static properties and NMR relaxation rate.- Dynamical correlations of a spin ladder.- Conclusions and perspectives.

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この本の情報

書名 Statics and Dynamics of Weakly Coupled Antiferromagnetic Spin-1/2 Ladders in a Magnetic Field
著作者等 Bouillot, Pierre
シリーズ名 Springer Theses
出版元 Springer-Verlag Berlin and Heidelberg GmbH & Co. KG
刊行年月 2012.12.14
ページ数 123p
大きさ H235 x W155
ISBN 9783642338076
言語 英語
出版国 ドイツ
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