Quantum transport
High field quantum transport theory in semiconductors
... general quantum transport equations for the one-electron and one-phonon Wigner distributions appropriate to a model Hamiltonian ...Boltzmann transport equations and yet still maintain the possibility ...
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Stochastic webs and quantum transport in superlattices: an introductory review
... T. Mark Fromhold was born in 1965 in York, England. He was awarded a first-class honours degree in physics from the Univer- sity of Durham (1986) and a PhD in condensed matter theory from the University of Nottingham ...
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Quantum transport enhancement by time-reversal symmetry breaking
... the transport of energy and information. Models of continuous time quantum walks, which implicitly use time-reversal symmetric Hamiltonians, have been intensely used to investigate the effectiveness of ...
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Quantum Transport of Electronic Excitations through Macromolecules
... destroying quantum co- herence, delocalizes quantum states allowing the excitation to propagate through the system ...the quantum transport is again ...(i.e. quantum Zeno ...the ...
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Maximum-entropy theory of steady-state quantum transport
... ature, composition and total current we obtain a well-defined thermodynamic state (or, in the case of N-shaped I-V curves, a small number of states differing by applied bias voltage). Firstly, the total energy is ...
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Current-constraining variational approaches to quantum transport
... is used only formally for the derivation of the formulae used within the NEGF formalism. The other alternative would be to use some sort of variational principle that would directly lead us to the non-equilibrium density ...
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Asymptotic self-consistency in quantum transport calculations
... of quantum transport commonly focus on a central region which is consid- ered to be connected to infinite, periodic leads through which the current ...
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Quantum transport of Au S S Au nanoscale junctions
... MBJs transport experiments, where conductance histograms are col- lected over subsequent cycles of the junction ...particular, quantum transport calculations based on accurate electronic structure ...
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High temperature quantum transport in graphene/hexagonal boron nitride heterostructures
... novel transport phenomena unique to ...electron transport in graphene from the point of view of fundamental ...Typically quantum transport phenomena are dominant at liquid helium temperatures ...
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Quantum transport in semiconductor nanostructures
... coherent electron focusing expenment59 In that section we restncted ourselves to weak magnetic fields Here we discuss the expenment by van Wees et al ,426 which shows how in the QHE regi[r] ...
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Giant Magnetoresistance and Quantum Transport in Magnetic Hybrid Nanostructures
... Consider first the case of C PP GMR. The main difference with respect to its CIP counterpart is twofold. On the one hand there is the fact th at an electron must cross the whole structure before being collected at the ...
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Computation of quantum-transport properties by random-matrix theory
... The variance is independent of the eigenvalue density and has a universal dependence on the symmetry of the matrix ensemble.. The formula generalizes the Dyson-Mehta theorem in the stati[r] ...
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Nonreciprocal quantum transport at junctions of structured leads
... The Kubo results are very accurate for short times, however, for long times we have to resort to the Born approach in Fig. 4. For weak system Hamiltonian a rec- tification peak manifests just before the Heisenberg point ...
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Quantum transport and dynamics of phonons in mesoscopic systems
... From Fig. 2.3 we can suggest two mechanisms that might account for the observed minimum in the dependence of K/T on temperature. The first mechanism ascribes the minimum in K/T to the behaviour of the first mode alone, ...
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Quantum transport in semiconductor-superconductor microjunctions
... Fig l S Conductance of a fork junction äs a function of magnetic field, showmg the dependence on the phase difference φ of the superconductor at two tunnel barners The circles are meas[r] ...
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Theory of electron, phonon and spin transport in nanoscale quantum devices
... spin transport in nanoscale molecular ...sensors. Transport on the molecular scale: Any nanoscale device consists of two or more electrodes (leads) connected to a scattering region (figure ...of ...
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Analysis of Nonequilibrium Transport Properties of Interacting Quantum Wire Models
... create quantum wire (QW) with the diameter of the order of the Fermi wavelength, and to experimentally study the quantum transport properties through them [1] ...predict transport properties ...
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Transport properties for pure strained Ge quantum well
... the transport properties of holes in the strained Ge quantum wells will require structural and electrical characterization to explain the ...of transport in a buried layer is interface roughness that ...
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Efficient method for transport simulations in quantum cascade lasers
... Abstract. An efficient method for simulating quantum transport in quantum cascade lasers is presented. The calculations are performed within a simple approximation inspired by Büttiker probes and ...
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Dissipative transport in quantum Hall ferromagnets by spin-wave scattering
... In quantum Hall ferromagnets (QHFs) [1] there are two important energy gaps: the spinwave gap, describing the minimum energy spinwave excitation; and the quasi- particle gap, describing the energy of a ...
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