Open chaotic Dirac billiards: Weak (anti) localization, conductance fluctuations, and decoherence
MSM Barros, AJN Júnior, AF Macedo-Junior, J Ramos… - Physical Review B, 2013 - APS
In this paper, we investigate the transport properties of open chaotic Dirac billiards and their
intrinsic (chiral universal) symmetry classes. The prominent examples of these systems are …
intrinsic (chiral universal) symmetry classes. The prominent examples of these systems are …
Spin Hall angle fluctuations in a device with disorder
FAF Santana, JM Da Silva, TC Vasconcelos, J Ramos… - Physical Review B, 2020 - APS
We investigate a disorderly mesoscopic device that supports spin-orbit interaction. The
system is connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for …
system is connected to four semi-infinite leads embedded in the Landauer-Buttiker setup for …
Semiclassical treatment of quantum chaotic transport with a tunnel barrier
We consider the problem of a semiclassical description of quantum chaotic transport, when
a tunnel barrier is present in one of the leads. Using a semiclassical approach formulated in …
a tunnel barrier is present in one of the leads. Using a semiclassical approach formulated in …
Quantum transport in chaotic cavities with tunnel barriers
We bring together the semiclassical approximation, matrix integrals, and the theory of
symmetric polynomials in order to solve a long-standing problem in the field of quantum …
symmetric polynomials in order to solve a long-standing problem in the field of quantum …
Universal Braess paradox in open quantum dots
We present analytical and numerical results that demonstrate the presence of the Braess
paradox in chaotic quantum dots. The paradox that we identify, originally perceived in …
paradox in chaotic quantum dots. The paradox that we identify, originally perceived in …
Spin-to-charge conversion in 2D electron gas and single-layer graphene devices
J Ramos, TC Vasconcelos, ALR Barbosa - Journal of Applied Physics, 2018 - pubs.aip.org
We investigate the spin-to-charge conversion emerging from a mesoscopic device
connected to multiple terminals. We obtain analytical expressions to the characteristic …
connected to multiple terminals. We obtain analytical expressions to the characteristic …
Tunable crossovers for the quantum interference correction to conductance and shot-noise power in chaotic quantum dots with nonideal contacts
We study a large class of tunable crossovers between the three Dyson universality classes
for electron transport through chaotic quantum dots with nonideal contacts. We present …
for electron transport through chaotic quantum dots with nonideal contacts. We present …
Correlation functions and correlation widths in quantum-chaotic scattering for mesoscopic systems and nuclei
We derive analytical expressions for the correlation functions of the electronic conductance
fluctuations of an open quantum dot under several conditions. Both the variation of energy …
fluctuations of an open quantum dot under several conditions. Both the variation of energy …
Electronic transport in three-terminal chaotic systems with a tunnel barrier
LH Oliveira, ALR Barbosa… - Journal of Physics A …, 2022 - iopscience.iop.org
We consider the problem of electronic quantum transport through ballistic mesoscopic
systems with chaotic dynamics, connected to a three-terminal architecture in which one of …
systems with chaotic dynamics, connected to a three-terminal architecture in which one of …
Statistics of quantum transport in weakly nonideal chaotic cavities
We consider statistics of electronic transport in chaotic cavities where time-reversal
symmetry is broken and one of the leads is weakly nonideal; that is, it contains tunnel …
symmetry is broken and one of the leads is weakly nonideal; that is, it contains tunnel …