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Related papers: Shot Noise Suppression at 2D Hopping

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Shot-noise measures the correlations of fluctuations of current for a voltage applied much larger than the temperature and reveals aspects of correlations in fermions beyond those revealed in the conductivity. Recent measurements of…

Strongly Correlated Electrons · Physics 2024-09-18 Srinivas Raghu , Chandra M. Varma

We study a model of two interacting levels that are attached to two electronic leads, where one of the levels is attached very weakly to the leads. We use rate equations method to calculate the average current and the noise of electrons…

Mesoscale and Nanoscale Physics · Physics 2012-02-02 Assaf Carmi , Yuval Oreg

We study shot noise in a two-dimensional, disordered marginal Fermi liquid (MFL) driven out of equilibrium. We consider electrons with Planckian dissipation on the Fermi surface coupled to quantum-critical bosons in the presence of…

Strongly Correlated Electrons · Physics 2024-08-02 Tsz Chun Wu , Matthew S. Foster

Recently we have developed a theory of Keldysh formalism for mesoscopic systems. The resulting nonequilibrium Kubo formula for differential conductance makes it possible to propose the new formula of shot noise $S_h$, and thus to study shot…

Mesoscale and Nanoscale Physics · Physics 2008-07-31 Tatsuya Fujii

We investigate the noise properties of a GaAs-AlAs-GaAs tunneling structure with embedded self-assembled InAs quantum dots in the single-electron tunneling regime. We analyze the dependence of the relative noise amplitude of the shot noise…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 A. Nauen , I. Hapke-Wurst , F. Hohls , U. Zeitler , R. J. Haug , K. Pierz

We present a theoretical investigation of shot-noise suppression due to long-range Coulomb interaction in nondegenerate diffusive conductors. Calculations make use of an ensemble Monte Carlo simulator self-consistently coupled with a…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 T. Gonzalez , J. Mateos , D. Pardo , O. M. Bulashenko , L. Reggiani

We calculate the shot noise power in ballistic graphene using the kinetic equation approach based on the Keldysh technique. We find that the local energy distribution function obeys Poisson's equation, indicating a mapping into a diffusive…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Anatoly Golub , Baruch Horovitz

Using the random matrix approach, we calculate analytically the average shot-noise power in a chaotic cavity at an arbitrary number of propagating modes (channels) in each of the two attached leads. A simple relationship between this…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. V. Savin , H. -J. Sommers

We study a current shot noise in a macroscopic insulator based on a two-dimensional electron system in GaAs in a variable range hopping (VRH) regime. At low temperature and in a sufficiently depleted sample a shot noise close to a full…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 E. S. Tikhonov , V. S. Khrapai , D. V. Shovkun , D. Schuh

We calculate the full counting statistics of charge transfer in a chiral Majorana interferometer - a setup where a Dirac mode (an electron-hole mode) is split into two Majorana modes that encircle a number of h/2e vortices in a topological…

Mesoscale and Nanoscale Physics · Physics 2025-08-07 C. W. J. Beenakker

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 advance spin noise spectroscopy to the ultimate limit of single spin detection. This technique enables the measurement of the spin dynamic of a single heavy hole localized in a flat (InGa)As quantum dot. Magnetic field and light…

Mesoscale and Nanoscale Physics · Physics 2014-04-15 Ramin Dahbashi , Jens Hübner , Fabian Berski , Klaus Pierz , Michael Oestreich

We investigate the effect of electron-phonon inelastic scattering on shot noise in nanoscale junctions in the regime of quasi-ballistic transport. We predict that when the local temperature of the junction is larger than its lowest…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Yu-Chang Chen , Massimiliano Di Ventra

A semiclassical theory of the low frequency shot noise in ferromagnet - normal metal systems is formulated. Non-collinear magnetization directions of the ferromagnetic leads, arbitrary junctions and the elastic and inelastic scattering…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Yaroslav Tserkovnyak , Arne Brataas

The shot noise in the electrical current through a ballistic chaotic quantum dot with N-channel point contacts is suppressed for N --> infinity, because of the transition from stochastic scattering of quantum wave packets to deterministic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Ossipov , J. H. Bardarson , C. W. J. Beenakker , J. Tworzydlo , M. Titov

In this paper we report a relaxation-induced suppression of the noise for a single level quantum dot coupled to an oscillator with incoherent dynamics in the sequential tunneling regime. It is shown that relaxation induces qualitative…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Haupt , F. Cavaliere , R. Fazio , M. Sassetti

We perform a numerical investigation of the effect of the disorder associated with randomly located impurities on shot noise in mesoscopic cavities. We show that such a disorder becomes dominant in determining the noise behavior when the…

Mesoscale and Nanoscale Physics · Physics 2013-08-16 Paolo Marconcini , Massimo Totaro , Giovanni Basso , Massimo Macucci

We investigate the behavior of the shot-noise power through quantum mechanical cavities in the semiclassical limit of small electronic wavelength. In the absence of impurity scattering, the Fano factor $F$, giving the noise to current…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Philippe Jacquod , Robert S. Whitney

We report low-temperature shot noise measurements of short diffusive Au wires attached to electron reservoirs of varying sizes. The measured noise suppression factor compared to the classical noise value $2e\left| I\right| $ strongly…

Mesoscale and Nanoscale Physics · Physics 2016-08-15 M. Henny , S. Oberholzer , C. Strunk , C. Schönenberger

We have performed off axis heterodyne holography with very weak illumination by recording holograms of the object with and without object illumination in the same acquisition run. We have experimentally studied, how the reconstructed image…

Optics · Physics 2015-06-11 Max Lesaffre , Nicolas Verrier , Michel Gross