4 papers
Delta-T noise in the Kondo regime
Masahiro Hasegawa, Keiji Saito
We study the delta-T noise in the Kondo regime, which implies the charge current noise under the temperature bias for the SU(2) Kondo quantum dot. We propose an experimentally meas…
Adiabatic almost-topological pumping of fractional charges in non-interacting quantum dots
Masahiro Hasegawa, Etienne Jussiau, Robert S. Whitney
We use exact techniques to demonstrate theoretically the pumping of fractional charges in a single-level non-interacting quantum dot, when the dot-reservoir coupling is adiabatical…
Geometrical optimization of pumping power under adiabatic parameter driving
Masahiro Hasegawa, Takeo Kato
Adiabatic pumping is a fundamental concept in the time-dependent transport of mesoscopic devices. To maximize pumping performance, i.e., the amount of pumping per unit time, it is…
Signature of the transition to a bound state in thermoelectric quantum transport
Étienne Jussiau, Masahiro Hasegawa, Robert S. Whitney
We study a quantum dot coupled to two semiconducting reservoirs, when the dot level and the electrochemical potential are both close to a band edge in the reservoirs. This is model…