Nonlinear conductance in a ballistic Aharonov-Bohm ring
Alexis R. Hern\'andez, and Caio H. Lewenkopf
TL;DR
This paper explores how electronic interactions affect nonlinear conductance and interference effects in a ballistic Aharonov-Bohm ring, revealing broken phase rigidity and magnetic field symmetries, with comparisons to experimental data.
Contribution
It provides a theoretical analysis of nonlinear conductance and interference phenomena in a ballistic Aharonov-Bohm ring, highlighting the role of electronic interactions.
Findings
Electronic interactions break phase rigidity at higher bias.
Magnetic field symmetries appear in higher order conductance.
Results align with recent experimental observations.
Abstract
The nonlinear electronic transport properties of a ballistic Aharonov-Bohm ring are investigated. It is demonstrated how the electronic interaction breaks the phase rigidity in a two-probe mesoscopic device as the voltage bias is increased. The possibility of studying interference effects in the nonlinear regime is addressed. The occurrence of magnetic feld symmetries in higher order conductance coefficients is analyzed. The results are compared with recent experimental data.
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