Quantum interference correction to the shot-noise power in nonideal chaotic cavities

J Ramos, ALR Barbosa, AMS Macêdo - Physical Review B—Condensed Matter …, 2008 - APS
We present analytical results for the leading (weak-localization) quantum interference
correction to the shot-noise power in a ballistic chaotic cavity coupled nonideally to two …

Average shot-noise power via a diagrammatic method

ALR Barbosa, J Ramos… - Journal of Physics A …, 2010 - iopscience.iop.org
In this work we use a diagrammatic method for integration over the unitary group to obtain a
quantum correction to the average shot-noise power of a chaotic cavity with non-ideal …

Statistics of orbital entanglement production in a chaotic quantum dot with nonideal contacts

FAG Almeida, AMC Souza - Physical Review B—Condensed Matter and …, 2010 - APS
We investigate the statistics of orbital entanglement production between electrons in a
chaotic quantum dot with two-channel leads. Through a random-matrix simulation, we obtain …

Circuit theory and full counting statistics of charge transfer through mesoscopic systems: A random-matrix approach

GC Duarte-Filho, AF Macedo-Junior… - Physical Review B …, 2007 - APS
We introduce a random-matrix description of full counting statistics of charge transfer
through a quantum mesoscopic system at finite temperature in the presence two nonideal …

Full counting statistics of Andreev reflection: Signatures of a quantum transition

GC Duarte-Filho, AMS Macêdo - Physical Review B—Condensed Matter and …, 2009 - APS
Employing semiclassical circuit theory, we study the charge-transfer statistics of a quantum
dot (chaotic cavity) connected to a normal metal and a superconducting reservoir via two …

Charge counting statistics and weak localization in a quantum chain

GC Duarte-Filho, FAG Almeida, S Rodríguez-Pérez… - Physical Review B …, 2013 - APS
We study transport properties of a quantum chain formed by an array of chaotic quantum
dots coupled to each other and to electron reservoirs via barriers of arbitrary transparencies …

Universal Fano factor and anomalous characteristics in weakly interacting quantum dots

AMS Macêdo, AMC Souza - Physical Review B—Condensed Matter and …, 2005 - APS
We study interaction effects in quantum dots coupled to perfectly conducting leads via
barriers of arbitrary transparencies and embedded in an electromagnetic environment …

Transporte em nanoestruturas: Métodos de movimento Browniano e teoria de circuitos

A Fernandes de Macedo Júnior - 2006 - bdtd.ibict.br
Os resultados apresentados nesta tese podem ser divididos em duas partes. Na primeira
estudamos uma classe de ensembles de movimento browniano (EMB) da teoria de matrizes …

Modelo sigma não-linear supersimátrico: aplicações em nanoestruturas caóticas

JGGS RAMOS - 2010 - bdtd.ibict.br
Nesta tese, apresentamos um estudo de propriedades universais de trans-porte quântico
em sistemas mesoscópicos. Em regimes relevantes, os observáeis de transporte podem ser …

Numerical approach of the quantum circuit theory

JJB Silva, GC Duarte-Filho, FAG Almeida - Journal of Computational …, 2017 - Elsevier
In this paper we develop a numerical method based on the quantum circuit theory to
approach the coherent electronic transport in a network of quantum dots connected with …