English
Related papers

Related papers: Shot noise suppression in quasi one-dimensional Fi…

200 papers

Motivated by activities of several experimental groups we investigate electron transport through two coherent, strongly coupled quantum dots ("double quantum dots"), taking into account both intra- and inter-dot Coulomb interactions. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jasmin Aghassi , Axel Thielmann , Matthias H. Hettler , Gerd Schön

This is a review of shot noise, the time-dependent fluctuations in the electrical current due to the discreteness of the electron charge, in small conductors. The shot-noise power can be smaller than that of a Poisson process as a result of…

Mesoscale and Nanoscale Physics · Physics 2008-02-03 M. J. M. de Jong , C. W. J. Beenakker

We consider the problem of shot noise in resonant tunneling through double quantum dots in the case of interacting particles. Using a many-body quantum mechanical description we evaluate the energy dependent transmission probability, the…

Condensed Matter · Physics 2009-11-07 Brahim Elattari , S. A. Gurvitz

Experimental investigations of current shot noise in quantum point contacts show a reduction of the noise near the 0.7 anomaly. It is demonstrated that such a reduction naturally arises in a model proposed recently to explain the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. Golub , T. Aono , Yigal Meir

The shot noise of the current through a single electron transistor (SET), coupled capacitively with an electronic box, is calculated, using the master equation approach. We show that the noise may be sub-Poissonian or strongly…

Mesoscale and Nanoscale Physics · Physics 2013-06-11 V. Hung Nguyen , V. Lien Nguyen

We analyze the effect of electron-electron interactions on Andreev current and shot noise in diffusive hybrid structures composed of a normal metal attached to a superconductor via a weakly transmitting interface. We demonstrate that at…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. V. Galaktionov , A. D. Zaikin

We give a theoretical interpretation of the noise properties of Schottky barrier diodes based on the role played by the long range Coulomb interaction. We show that at low bias Schottky diodes display shot noise because the presence of the…

Statistical Mechanics · Physics 2009-10-31 G. Gomila , L. Reggiani , J. M. Rubi

The demand for a fast high-frequency read-out of high impedance devices, such as quantum dots, necessitates impedance matching. Here we use a resonant impedance matching circuit (a stub tuner) realized by on-chip superconducting…

Mesoscale and Nanoscale Physics · Physics 2015-11-05 T. Hasler , M. Jung , V. Ranjan , G. Puebla-Hellmann , A. Wallraff , C. Schönenberger

We have derived a general formula describing current noise in multimode ballistic channels connecting source and drain electrodes with Fermi electron gas. In particular (at $eV\gg k_{B}T$), the expression describes the nonequilibrium…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Y. Naveh , A. N. Korotkov , K. K. Likharev

Frequency-dependent nonequilibrium noise in quantum-coherent diffusive conductors is calculated with account taken of long-range Coulomb interaction. For long and narrow contacts with strong external screening the crossover between quantum…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 K. E. Nagaev

We describe a field-theoretic approach to calculate quantum shot noise in nanoscale conductors from first principles. Our starting point is the second-quantization field operator to calculate shot noise in terms of single quasi-particle…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yu-Chang Chen , Massimiliano Di Ventra

We argue that Coulomb interaction can strongly influence non-local electron transport in normal-superconducting-normal structures and emphasize direct relation between Coulomb effects and non-local shot noise. In the tunneling limit…

Superconductivity · Physics 2010-12-06 Dmitri S. Golubev , Andrei D. Zaikin

We work out a theory of shot noise in a special case. This is a noise of the Coulomb drag current excited under the ballistic transport regime in a one-dimensional nanowire by a ballistic non-Ohmic current in a nearby parallel nanowire. We…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 V. L. Gurevich , M. I. Muradov

A self-consistent theory of shot noise in ballistic two-terminal conductors under the action of long-range Coulomb correlations is presented. Analytical formulas for the electron distribution function and its fluctuation along the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 O. M. Bulashenko , J. M. Rubi , V. A. Kochelap

We investigate the current injection into a ballistic conductor under the space-charge limited regime, when the distribution function of injected carriers is an arbitrary function of energy F_c(epsilon). The analysis of the coupled kinetic…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 O. M. Bulashenko , J. M. Rubi , V. A. Kochelap

We study shot noise in the current of quantum dots whose low-energy behaviour corresponds to an SU(N) Kondo model, focusing on the case N=4 relevant to carbon nanotube dots. For general N, two-particle Fermi liquid interactions have two…

Mesoscale and Nanoscale Physics · Physics 2008-01-24 P. Vitushinsky , A. A. Clerk , K. Le Hur

We observe the suppression of the finite frequency shot-noise produced by a voltage biased tunnel junction due to its interaction with a single electromagnetic mode of high impedance. The tunnel junction is embedded in a quarter wavelength…

Mesoscale and Nanoscale Physics · Physics 2014-10-24 C. Altimiras , O. Parlavecchio , P. Joyez , D. Vion , P. Roche , D. Esteve , F. Portier

We investigate the injection of degenerate Fermi-Dirac electrons into a multimode ballistic conductor under the space-charge limited regime. The nonequilibrium current fluctuations were found to be suppressed by both Coulomb and Fermi…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 O. M. Bulashenko , J. M. Rubi

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 P. -E. Roche , M. Kociak , S. Gueron , A. Kasumov , B. Reulet , H. Bouchiat

Shot noise encodes additional information not directly inferable from simple electronic transport measurements. Previous measurements in atomic-scale metal junctions at cryogenic temperatures have shown suppression of the shot noise at…

Mesoscale and Nanoscale Physics · Physics 2010-03-09 P. J. Wheeler , J. N. Russom , K. Evans , N. S. King , D. Natelson