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4 papers · 1 filter
Radiation damping and decoherence in quantum electrodynamics
Heinz-Peter Breuer, Francesco Petruccione
The processes of radiation damping and decoherence in Quantum Electrodynamics are studied from an open system's point of view. Employing functional techniques of field theory, the…
The electrostatic potential profile along a biased molecular wire: A model quantum mechanical calculation
Stéphane Pleutin, Hermann Grabert, Gert-Ludwig Ingold +1
We study the electrostatic potential of a molecular wire bridging two metallic electrodes in the limit of weak contacts. With the use of a tight-binding model including a fully thr…
On the electrostatic potential profile in biased molecular wires
Abraham Nitzan, Michael Galperin, Gert-Ludwig Ingold +1
The potential profile across a biased molecular junction is calculated within the framework of a simple Thomas-Fermi type screening model. In particular, the relationship between t…
Negative Thermal Expansion of ZrW2O8 and HfW2O8: Contradiction to a Thermodynamic Relation
I. A. Stepanov
It has been shown that the dependence of negative thermal expansion coefficient of ZrW2O8 and HfW2O8 on the temperature found by many authors contradicts to an important thermodyna…