Length-independent voltage fluctuations in small conductors

Length-independent voltage fluctuations in small devices.

Energy and power fluctuations in ac-driven coherent conductors

Francesca Battista,1,2 Federica Haupt,1,3 and Janine Splettstoesser1,4 1Institut für Theorie der Statistischen Physik, RWTH Aachen University, D-52056 Aachen, Germany and JARA-Fundamentals of Future Information Technology 2Departamento de Fı́sica, FCEyN, Universidad de Buenos Aires and IFIBA, Pabellón I, Ciudad Universitaria, 1428 CABA Argentina 3JARA Institute for Quantum Information, RWTH Aach...

Charge Fluctuations and Dephasing in Coulomb Coupled Conductors

It is shown that the dephasing rate in Coulomb coupled mesoscopic structures is determined by charge relaxation resistances. The charge relaxation resistance together with the capacitance determines the RC-time of the mesoscopic structure and at small frequencies determines the voltage fluctuation spectrum. Self-consistent expressions are presented which give the charge relaxation resistance an...

Voltage fluctuations in neurons: signal or noise?

Noise and variability are fundamental companions to ion channels and synapses and thus inescapable elements of brain function. The overriding unresolved issue is to what extent noise distorts and limits signaling on one hand and at the same time constitutes a crucial and fundamental enrichment that allows and facilitates complex adaptive behavior in an unpredictable world. Here we review the gr...

Diurnal axial length fluctuations in human eyes.

PURPOSE This study sought diurnal variations of eye length in human subjects, analogous to those reported in laboratory animals. METHODS Seventeen subjects, ages 7 to 53 (median 16) years and mean spherical equivalent refractive error -0.68 D (range, -3.00 to +1.00 D), underwent axial length measurements at multiple times during the day between 7 AM and 1 AM the following day, using partial c...