14 citations · 54 across the 8 of their papers we have counts for
8 papers
Nonadiabatic Correction and Adiabatic Criteria of Noninteracting Quantum Dot Systems
Masahiro Hasegawa, Takeo Kato
We theoretically study nonadiabatic corrections for charge pumping in a noninteracting electron model of a single-level quantum dot. We derive a formula for the velocity limit of p…
Kondo Effect in a Quantum Dot under Continuous Quantum Measurement
Masahiro Hasegawa, Masaya Nakagawa, Keiji Saito
The backaction of quantum measurement on the Kondo effect in a quantum dot system is investigated by considering continuous projective measurement of singly occupied states of a qu…
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…
Interaction effect on reservoir-parameter-driven adiabatic charge pumping via a single-level quantum dot system
Masahiro Hasegawa, Takeo Kato
We formulate adiabatic charge pumping via a single-level quantum dot (QD) induced by reser- voir parameter driving, i.e., temperature and electrochemical potential driving. Our for…
Temperature-driven and electrochemical-potential-driven adiabatic pumping via a quantum dot
M. Hasegawa, T. Kato
We investigate adiabatic pumping via a single level quantum dot induced by periodic modulation of thermodynamic variables of reservoirs, i.e., temperatures and electrochemical pote…