Electronic transport in three-terminal chaotic systems with a tunnel barrier. (16th September 2022)

• Record Type: Journal Article
• Authors: Oliveira, Lucas H; Barbosa, Anderson L R; Novaes, Marcel
• Is Part Of: Journal of physics. Volume 55:Number 37(2022)
• Publication Date: 2022-09-16
• Subjects: quantum chaos -- quantum transport -- semiclassical approximation; Mathematical physics -- Periodicals; Statistical physics -- Periodicals; Quantum theory -- Periodicals; Matter -- Properties -- Periodicals; 530.105
• DOI: 10.1088/1751-8121/ac82d7
• Languages: English
• ISSNs: 1751-8113

Abstract

Abstract: 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 the terminals has a tunnel barrier. Using a semiclassical approximation based on matrix integrals, we calculate several transport statistics, such as average and variance of conductance, average shot-noise power, among others, that give access to the extreme quantum regime (small channel numbers in the terminal) for broken and intact time-reversal symmetry, which the traditional random matrix approach does not access. As an application, we treat the dephasing regime.