Titlebook: An Introduction to Quantum Spin Systems; John Parkinson,Damian J J Farnell Book 2010 Springer-Verlag Berlin Heidelberg 2010 Theoretical ph

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0075-8450 ntary material: The topic of lattice quantum spin systems is a fascinating and by nowwell-established branch of theoretical physics. However, many important questions remain to be answered. Their intrinsically quantum mechanical nature and the large (usually effectively infinite) number of spins in

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Introduction,r interactions (quantum spin systems). The nature of the exchange interaction is discussed, and we distinguish between ferromagnetic and antiferromagnetic coupling. Finally we summarise the contents of subsequent chapters.

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Besondere Herstellungsverfahren,fted plane waves with wave vector .. . is related to the rate of change of the density of the distribution .. Once the fundamental integral equation has been derived it is solved by Fourier transform. Finally the solution . is used to find the antiferromagnetic ground-state energy.

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