Cyclostationary shot noise in mesoscopic measurements

Frequency Dependence of Shot Noise in a Diffusive Mesoscopic Conductor

Detailed measurements of the voltage, temperature, and frequency dependence of the nonequilibrium current fluctuations for a diffusive mesoscopic conductor are reported. The data confirm predictions that a mesoscopic conductor shorter than the electron-electron inelastic length will display shot noise. Furthermore, the low temperatures (100 mK) and high frequencies (1–20 GHz) used for the measu...

Title of dissertation: SEARCHING FOR ENTANGLED ELECTRON SPIN STATES WITH SHOT NOISE DETECTION

Title of dissertation: SEARCHING FOR ENTANGLED ELECTRON SPIN STATES WITH SHOT NOISE DETECTION Yuanzhen Chen, Doctor of Philosophy, 2005 Dissertation directed by: Richard A. Webb Department of Physics We report experimental research into the possibility of using shot noise measurements to detect the entangled states of electron spins. The study is part of the effort towards the demonstration of ...

Very low shot noise in carbon nanotubes

We have performed noise measurements on suspended ropes of single wall carbon nanotubes (SWNT) between 1 and 300 K for different values of dc current through the ropes. We find that the shot noise is suppressed by more than a factor 100 compared to the full shot noise 2eI. We have also measured an individual SWNT and found a level of noise which is smaller than the minimum expected. Another fin...

noise for entangled and spin - polarized electrons

We review our recent contributions on shot noise for entangled electrons and spin-polarized currents in novel mesoscopic geometries. We first discuss some of our recent proposals for electron entanglers involving a superconductor coupled to a double dot in the Coulomb blockade regime, a superconductor tunnel-coupled to Luttinger-liquid leads, and a triple-dot setup coupled to Fermi leads. We br...

Shot Noise of Mesoscopic Ns Structures : the Role of Andreev Reflection