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

[14] A. D. Armour, cond-mat/0401387. [15] N. M. Chtchelkatchev, W. Belzig, and C. Bruder, cond- mat/0401486. [16] F. Pistolesi, cond-mat/0401361. [17] A. Isacsson and T. Nord, Europhys. Lett. 66, 708 (2004). [18] A. Romito and Y. V. Nazarov, cond-mat

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T he edge-state FQ H E has been addressed sim ultaneously in three di erent the- oreticalpapers [7,8,9],which ... ply not in evidence so far. Such data as exists m ay (or m ay not) be suggestive ofthe intuitive consensus on the edge .... 4G kB T. T h

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) =

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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.

Oct 18, 1999 - for an expert. From this perspective this Review is more a textbook than a handbook. We encourage the reader who wants to enter the field to read the Review from the beginning to the end. ... to help the experts, who only take this Rev

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.

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

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

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

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.

orous theoretical work is now in demand to explain the shot noise in individual SWNTs. We acknowledge Prof. Quate for his encouragement and atomic force microscopes for imaging the SWNT de- vices and thank the ARO-MURI grant DAAD19-99-1-. 0215 for su

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

snake states (ref: 5, 6). In a magnetic field, combination of quantum Hall .... scattering occurs inside the PNJ, because of the large error bars explained below. An important implication of the results is that, .... Williams, J. R. & Marcus, C. M. S

Oct 27, 2005 - Poissonian noise with a Fano factor up to F = 3 [8]. Experiments ... with an intermediary oxidation step is employed to de- posit the Al .... -3. 0. 10. 20. 30. 40. 0. 4. 8. I (nA) nt. Integrated I. (fW) det b. FIG. 2: (a) Detector sig

The observed voltage and temperature dependence is compared to the results of a master equation approach. PACS numbers: 73.63.Kv, 73.40.Gk, 72.70.+m. The so called shot ... age current I with e being the electron charge.2 However, it has been .... We

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

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

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

show that in new generation electron emitters, scaled down to the nanometer dimensions, shot noise ... the noise power: SI = 2qI, with q the elementary charge.