Multifloquet to single electronic channel transition in the transport properties of a resistive 1D driven disordered ring

Abstract

We investigate the dc response of a 1D disordered ring coupled to a reservoir and driven by a magnetic flux with a linear dependence on time. We identify two regimes: (i) A localized or large length L regime, characterized by a dc conductance, g_{dc}, whose probability distribution P(g_{dc}) is identical to the one exhibited by a 1D wire of the same length L and disorder strength placed in a Landauer setup. (ii) A "multifloquet" regime for small L and weak coupling to the reservoir, which exhibits large currents and conductances that can be g_{dc} > 1, in spite of the fact that the ring contains a single electronic transmission channel. The crossover length between the multifloquet to the single channel transport regime, L_c, is controlled by the coupling to the reservoir.

arXiv comment5 pages, 4 figures

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Cited by in corpus (6)

• Quantum rings with time dependent spin-orbit coupling: Rabi oscillations, spintronic Schrodinger-cat states, and conductance properties
• Controlling conductance statistics of quantum wires by driving ac fields
• Pumping charge with ac magnetic fluxes and the dynamical breakdown of Onsager symmetry
• The mesoscopic conductance of disordered rings, its random matrix theory, and the generalized variable range hopping picture
• Rings and Coulomb boxes in dissipative environments
• Quantum transport phenomena induced by time-dependent fields