Ordering ambiguity revisited via position dependent mass pseudo-momentum operators

Ordering ambiguity associated with the von Roos position dependent mass (PDM) Hamiltonian is considered. An affine locally scaled first order differential introduced, in Eq.(9), as a PDM-pseudo-momentum operator. Upon intertwining our Hamiltonian, which is the sum of the square of this operator and the potential function, with the von Roos d-dimensional PDM-Hamiltonian, we observed that the so-called von Roos ambiguity parameters are strictly determined, but not necessarily unique. Our new ambiguity parameters' setting is subjected to Dutra's and Almeida's [11] reliability test and classified as good ordering.Comment: 10 pages, no figures, revised/expanded, mathematical presentations in section 2 (Especially, the typological Errors in Eqs.(9)-(12))are now corrected. To appear in the Int. J. Theor. Phy

Random-Matrix Theory of Quantum Transport

This is a comprehensive review of the random-matrix approach to the theory of phase-coherent conduction in mesocopic systems. The theory is applied to a variety of physical phenomena in quantum dots and disordered wires, including universal conductance fluctuations, weak localization, Coulomb blockade, sub-Poissonian shot noise, reflectionless tunneling into a superconductor, and giant conductance oscillations in a Josephson junction.Comment: 85 pages including 52 figures, to be published in Rev.Mod.Phy

Metal non-metal transitions in doped semicontuctors

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Pulsed laser cleaning of antimony single crystal <111> surface

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Effects of electron-electron interactions on the nature of the eingenstates in amorphous materials

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XPS analysis of polymide films modified by UV pulsed laser radiation ati 193 mm

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Theoretical study of the interplay of electron-electron interaction and disorder

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Theoretical model of the density of states of random binary alloys

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Localization properties of one-dimensional electrifield chains

Consiglio Nazionale delle Ricerche (CNR). Biblitoteca Centrale / CNR - Consiglio Nazionale delle RichercheSIGLEITItal

Nature of the eigenstates near the mobility edge in random binary alloys

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