Results 11 to 20 of about 93,610 (302)

Comparing conductance quantization in quantum wires and Quantum Hall systems [PDF]

open access: yesPhysical Review B, 1996
We propose a new calculation of the DC conductance of a 1-dimensional electron system described by the Luttinger model. Our approach is based on the ideas of Landauer and B\"{u}ttiker and on the methods of current algebra. We analyse in detail the way in
A. Kawabata   +18 more
core   +3 more sources

Quantum conductance and electrical resistivity [PDF]

open access: yesPhysics Letters A, 2006
The Landauer formula for quantum conductance, based on the modern paradigm: "conduction is transmission", is generalized to samples of macroscopic size. Two regimes of electrical conduction, namely diffusive and ballistic ones, are studied. In the former regime, Drude's formula for the electrical resistivity is recovered and it is found a maximum ...
Silva, P. R.   +3 more
openaire   +3 more sources

Conductance Peaks in Open Quantum Dots [PDF]

open access: yesPhysical Review Letters, 2011
5 pages, 5 figures, accepted to be published - Physical Review ...
Ramos, J. G. G. S.   +3 more
openaire   +3 more sources

Conductance of Fully Equilibrated Quantum Wires [PDF]

open access: yesPhysical Review Letters, 2009
We study the conductance of a quantum wire in the presence of weak electron-electron scattering. In a sufficiently long wire the scattering leads to full equilibration of the electron distribution function in the frame moving with the electric current. At non-zero temperature this equilibrium distribution differs from the one supplied by the leads.
Rech, Jérôme   +2 more
openaire   +4 more sources

Fluctuation Theorem in Quantum Heat Conduction [PDF]

open access: yesPhysical Review Letters, 2007
We consider steady state heat conduction across a quantum harmonic chain connected to reservoirs modelled by infinite collection of oscillators. The heat, $Q$, flowing across the oscillator in a time interval $ $ is a stochastic variable and we study the probability distribution function $P(Q)$.
Saito, Keiji, Dhar, Abhishek
openaire   +3 more sources

Quantum Interference in Coherent Molecular Conductance [PDF]

open access: yesPhysical Review Letters, 2009
Coherent electronic transport through individual molecules is crucially sensitive to quantum interference. Using exact diagonalization techniques, we investigate the zero-bias and zero-temperature conductance through $ $-conjugated annulene molecules (modeled by the Pariser-Parr-Pople and Hubbard Hamiltonians) weakly coupled to two leads.
Rincon, Julian   +3 more
openaire   +4 more sources

Quantum conductance staircase of holes in silicon nanosandwiches

open access: yesModern Electronic Materials, 2017
The results of studying the quantum conductance staircase of holes in one-dimensional channels obtained by the split-gate method inside silicon nanosandwiches that are the ultra-narrow quantum well confined by the delta barriers heavily doped with boron ...
Nikolay T. Bagraev   +3 more
doaj   +1 more source

The Effect of Anchor Group on the Phonon Thermal Conductance of Single Molecule Junctions

open access: yesApplied Sciences, 2021
There is a worldwide race to convert waste heat to useful energy using thermoelectric materials. Molecules are attractive candidates for thermoelectricity because they can be synthesised with the atomic precision, and intriguing properties due to quantum
Mohammed D. Noori   +2 more
doaj   +1 more source

Nonlinear conductance of long quantum wires at a conductance plateau transition: Where does the voltage drop? [PDF]

open access: yes, 2012
We calculate the linear and nonlinear conductance of spinless fermions in clean, long quantum wires where short-ranged interactions lead locally to equilibration.
A. Levchenko   +6 more
core   +2 more sources

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