Quantum Shot Noise

arXiv:cond-mat/0605025v1 [cond-mat.mes-hall] 30 Apr 2006. Quantum Shot Noise. Fluctuations in the flow of electrons signal the transition from particl...

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the smallest measured charge sets an upper bound for the fundamental charge. For example, a measurement in the ν=5/2 state of a charge e/4 rules out e/2 fundamental charges in this state. We present here measurement results of low frequency shot noi

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the Fano factor diverges at the laser threshold, while the signal-to-noise ratio ¯I2/P ... was proposed,3 that utilizes the methods of the random-matrix theory of quan- ..... This yields the optical shot noise formula (3) discussed in the introducti

Jul 4, 2018 - By taking W0 = log Z0 and computing the first and second moments, dW0 ..... Redo the same algebraic tricks as we did on the shot-noise case.

Jan 30, 2014 - vortex dynamics, as the influence of sample edges was eliminated [8]. ... of a rectangular strip geometry [13, 14], the Corbino ge- ..... 1965), Chapter 13. [20] Without loss of generality, we choose B > 0. For B < 0 one gets Tj (B) =

May 29, 2018 - By virtue of Ro(τ), So(f) can be written as. So(f) = ∫. ∞. −∞ .... The power spectral density Sc(f) of the Schottky noise is simply. Sc(f) = Nq2.

Jun 7, 2012 - of 1 photo electron per pixel, for the whole sequence of images used to build the digital hologram. ... In off-axis digital holography, as well as in photographic plate holography, the reference or local ...... Fringe-free holographic.

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just a minus sign in a two-probe system. This differ- ... the sign of this correlation1 can be reversed. .... ted line in Fig.1); (4) finally, in the weak coupling regime.

spin and valley degeneracy has been assumed for notational convenience. It can ...... carriers, one might hope to be able to find evidence for fractionally charged .... [80] E. R. Brown, C. D. Parker, A. R. Calawa, and M. J. Manfra, IEEE Trans.

rying currents of different strengths. The transport through a double-dot (DD) system shows an Aharonov-Bohm effect both in noise and current. In the case of cotunneling through a QDS with a continuous energy spectrum the Fano factor is very close to

Previous studies showed that despite these analytical simplifications ... guides supporting N1, N2 transversal modes, respectively. (Fig. 1a). For small ... n2=1. ∑ pq:n1→n2. ApA∗ q 〈ei/¯h(Sp−Sq )〉 ,. (5) the shot noise involves also a t

Feb 19, 2004 - This enhanced Fano factor is the signature of the correlation between ... control of these structures is required to employ them in electronics.

The spatial location of the edge states is indicated, as well as their direction of motion (solid lines with arrows). A barrier (shaded region) causes scatter- ing from one edge to the other (dashed lines). The corresponding scattering probabilities

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ing central region in addition to the free-phonon contri- bution, and Htl is the ... action of an electron on the central site with phonons: b† ... 1: Schematic description of the inelastic scattering prob- lem for (a) a single site and (b) two sit

competition of ”slow” and ”fast” transport channels that are formed due to the differing non-local wave functions and total spin of the states participating in transport. This strong ... provide a 'spectroscopic' tool to gain information abou

Jan 11, 2014 - New experiments that measure the low-frequency shot-noise spectrum at local tunneling contacts ..... We call these configurations .... center and tip 2 is placed at the same distance d/2 to the right of the center. The relative strengt

Jan 9, 2013 - 1NTT Basic Research Laboratories, NTT Corporation, .... gates, which is 100 × 100 nm2 in lithographic dimension. The transport ...

Mar 2, 2008 - It is also at the heart of metrology and precision measurements in ... the phase sensitivity of a usual two-port interferometer has a shot-noise ...

Dec 6, 2007 - of the TMR due to inelastic cotunneling and super-Poissonian shot noise have been found in some of the Coulomb blockade regions. Furthermore, in the Coulomb blockade regime there is an additional contribution to the noise due to bunchin