Frequency dispersion of photon-assisted shot noise in mesoscopic conductors | Zendy

Д. А. Багрец | Zendy; F. Pistolesi | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Frequency dispersion of photon-assisted shot noise in mesoscopic conductors

Author(s) -

Д. А. Багрец,

F. Pistolesi

Publication year - 2007

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.75.165315

Subject(s) - shot noise , mesoscopic physics , dispersion (optics) , physics , noise (video) , electron , photon , admittance , conductor , dwell time , diffusion , computational physics , condensed matter physics , optics , materials science , quantum mechanics , electrical impedance , medicine , clinical psychology , composite material , artificial intelligence , detector , computer science , image (mathematics)

We calculate the low-frequency current noise for AC biased mesoscopic chaoticcavities and diffusive wires. Contrary to what happens for the admittance, thefrequency dispersion is not dominated by the electric response time (the "RC"time of the circuit), but by the time that electrons need to diffuse throughthe structure (dwell time or diffusion time). Frequency dispersion of noisestems from fluctuations of the Fermi distribution function that preserve chargeneutrality. Our predictions can be verified with present experimentaltechnology.Comment: 5 pages, 3 Figure

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research