Wavefront solution in extended quantum circuits with charge discreteness

Abstract

A wavefront solution for quantum (capacitively coupled) transmission lines with charge discreteness (PRB {\bf 64}, 235309 (2001)) is proposed for the first time. The nonlinearity of the system becomes deeply related to charge discreteness. The wavefront velocity is found to depend on a step discontinuity on the (pseudo) flux variable, $f$, displaying allowed and forbidden regions (gaps), as a function of $f$. A preliminary study of the stability of the solutions is presented. The dual transmission line hamiltonian is proposed and finally, we find a connection with the (quantum) Toda lattice.

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References in corpus (3)

• Mesoscopic circuits with charge discreteness:quantum transmission lines
• Simple approach to the mesoscopic open electron resonator: Quantum current oscillations
• Quantum LC circuits with charge discreteness: normal and anomalous spectrum

Cited by in corpus (4)

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• Discrete-charge quantum circuits in semiclassical approach