Professor Tapash Chakraborty, Dr. Pekka Pietiläinen (auth.)'s The Quantum Hall Effects: Integral and Fractional PDF

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By Professor Tapash Chakraborty, Dr. Pekka Pietiläinen (auth.)

ISBN-10: 354058515X

ISBN-13: 9783540585152

ISBN-10: 3642793193

ISBN-13: 9783642793196

The Fractional Quantum corridor Effect provides a basic survery of many of the theoretical paintings at the topic and in short experiences the experimental effects at the excitation hole. a number of new subject matters like anyons, radiative recombinations within the fractional regime, experimental paintings at the spin-reversed quasi-particles, and so on. are further to render the monographic remedy updated. to accomplish the image this moment variation comprises 3 chapters at the fundamental quantum corridor effect.

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23-27] and will be discussed in detail in in Sect. 4. 30] and will be discussed in Sect. 5. In explaining the FQHE, a system of noninteracting electrons is, however, inadequate. According to our present understanding of the FQHE, electron correlations play a major role in this effect, and there have been a variety of theoretical attempts to understand this unique many-electron phenomenon. In the following chapters, we have attempted to survey most 34 of these theoretical approaches, and have tried to present in detail the current state of our understanding of this fascinating effect.

When we choose the products of the single-electron eigenstates as a basis, the off-diagonal matrix elements for l/ = N e/ Ns are the same as those for l/ = (1 - NelNs) for the same J values. E given by Fig. 3. 11] for N e = 4 and Ns = 12; (a) the ground state (b) an excited state identified as the CDW state. 2 are obtained, by the above arguments. 13], not much insight is gained about the ground-state wave function. The crucial step in obtaining both a ground-state wave function for a translationally invariant liquid state, and the mechanism for stabilizing the system at particular densities, was made by Laughlin, and is described below.

C) Source and drain contacts connected to different edges of the 2DEG (quasi-Corbino device); infinite sourcedrain resistance. 44] An excellent demonstration of the transition from adiabatic transport to equilibrated transport just by adding a metallic contact at the edge can be found in the experiments on double-barrier systems by Muller et ai. 41]. van W ees et ai. 40] measured the Hall conductance of a wide 2DEG in a geometry in which two quantum point contacts (constrictions in the 2DEG) form controllable current and voltage probes, separated by less than 27 both the elastic and the inelastic mean free path.

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The Quantum Hall Effects: Integral and Fractional by Professor Tapash Chakraborty, Dr. Pekka Pietiläinen (auth.)

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