Suppression of non-Poissonian shot noise by Coulomb correlations in ballistic conductors

Bulashenko, O. M.; Rubı́, J. M.; Kochelap, V. A.

doi:10.1103/physrevb.62.8184

Cited by 20 publications

(30 citation statements)

References 30 publications

(41 reference statements)

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“…͑11͔͒, and the functions ␥ L,R (E) ͑energy-resolved shot-noise suppression factors 12 ͒ are obtained as…”

Section: Current and Noisementioning

confidence: 99%

“…The essential difference with the case of a fixed barrier is that the space-charge barrier fluctuates in time and produces longrange Coulomb correlations between the transmitted electrons that leads to the significant suppression of shot noise registered at the collector contact. The level of suppression depends drastically on the energy profile of the injected carriers, 12 while the time-averaged quantities ͑the mean current, conductance, etc.͒ do not. Therefore, one can use the shot-noise measurements to reveal the details in the energy profile.…”

Section: Introductionmentioning

confidence: 99%

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Shot-noise spectroscopy of energy-resolved ballistic currents

Naspreda¹,

Bulashenko²,

Rubı́³

2003

Phys. Rev. B

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We investigate the shot noise of nonequilibrium carriers injected into a ballistic conductor and interacting via long-range Coulomb forces. Coulomb interactions are shown to act as an energy analyzer of the profile of injected electrons by means of the fluctuations of the potential barrier at the emitter contact. We show that the details in the energy profile can be extracted from shot-noise measurements in the Coulomb interaction regime, but cannot be obtained from time-averaged quantities or shot-noise measurements in the absence of interactions.

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“…͑11͔͒, and the functions ␥ L,R (E) ͑energy-resolved shot-noise suppression factors 12 ͒ are obtained as…”

Section: Current and Noisementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shot-noise spectroscopy of energy-resolved ballistic currents

Naspreda¹,

Bulashenko²,

Rubı́³

2003

Phys. Rev. B

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“…The last two terms are the fluctuations induced by the self-consistent potential fluctuations, that give rise to the long-range Coulomb correlations. 27 To find those terms, we need to obtain ␦⌽ L or, equivalently, the self-consistent fluctuations of the barrier height in terms of the injected fluctuations ␦I L,R by solving the Poisson equation. This has been done in the Appendix B.…”

Section: Self-consistent Current and Voltage Fluctuations Generalmentioning

confidence: 99%

“…) is the number of transversal modes in the degenerate zero-temperature limit, ϭ F /k B T is the reduced Fermi energy, ␣ϭ( F Ϫ⌽ L )/k B T is the parameter characterizing the position of the Fermi energy with respect to the potential barrier, and F k is the Fermi-Dirac integral of index k. 27 …”

Section: ͑13͒mentioning

confidence: 99%

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Self-consistent theory of current and voltage noise in multimode ballistic conductors

Bulashenko

Rubı́

2002

Phys. Rev. B

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Electron transport in a self-consistent potential along a ballistic two-terminal conductor has been investigated. We have derived general formulas which describe the nonlinear current-voltage characteristics, differential conductance, and low-frequency current and voltage noise assuming an arbitrary distribution function and correlation properties of injected electrons. The analytical results have been obtained for a wide range of biases: from equilibrium to high values beyond the linear-response regime. The particular case of a threedimensional Fermi-Dirac injection has been analyzed. We show that the Coulomb correlations are manifested in the negative excess voltage noise, i.e., the voltage fluctuations under high-field transport conditions can be less than in equilibrium.

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Bursty Human Dynamics

Karsai¹,

Jo²,

Kaski³

2018

SpringerBriefs in Complexity

132

160

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Springer Complexity is an interdisciplinary program publishing the best research and academic-level teaching on both fundamental and applied aspects of complex systems-cutting across all traditional disciplines of the natural and life sciences, engineering, economics, medicine, neuroscience, social and computer science.Complex Systems are systems that comprise many interacting parts with the ability to generate a new quality of macroscopic collective behavior the manifestations of which are the spontaneous formation of distinctive temporal, spatial or functional structures. Models of such systems can be successfully mapped onto quite diverse "real-life" situations like the climate, the coherent emission of light from lasers, chemical reaction-diffusion systems, biological cellular networks, the dynamics of stock markets and of the internet, earthquake statistics and prediction, freeway traffic, the human brain, or the formation of opinions in social systems, to name just some of the popular applications.Although their scope and methodologies overlap somewhat, one can distinguish the following main concepts and tools: self-organization, nonlinear dynamics, synergetics, turbulence, dynamical systems, catastrophes, instabilities, stochastic processes, chaos, graphs and networks, cellular automata, adaptive systems, genetic algorithms and computational intelligence.The three major book publication platforms of the Springer Complexity program are the monograph series "Understanding Complex Systems" focusing on the various applications of complexity, the "Springer Series in Synergetics", which is devoted to the quantitative theoretical and methodological foundations, and the "SpringerBriefs in Complexity" which are concise and topical working reports, case-studies, surveys, essays and lecture notes of relevance to the field. In addition to the books in these two core series, the program also incorporates individual titles ranging from textbooks to major reference works. This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any erro...

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Suppression of non-Poissonian shot noise by Coulomb correlations in ballistic conductors

Cited by 20 publications

References 30 publications

Shot-noise spectroscopy of energy-resolved ballistic currents

Shot-noise spectroscopy of energy-resolved ballistic currents

Self-consistent theory of current and voltage noise in multimode ballistic conductors

Bursty Human Dynamics

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