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Reconciliation of quantum local master equations with thermodynamics
(IOP Publishing, 2018-11)
The study of open quantum systems often relies on approximate master equations derived under the assumptions of weak coupling to the environment. However when the system is made of several interacting subsystems such a ...
Mesoscopic features in the transport properties of a Kondo-correlated quantum dot in a magnetic field
(IOP Publishing, 2013-12)
We study the transport behavior induced by a small bias voltage through a quantum dot connected to one-channel finite-size wires. We describe the quantum dot using the Hubbard–Anderson impurity model and we obtain solutions ...
Nonequilibrium current-induced forces caused by quantum localization: Anderson adiabatic quantum motors
(American Physical Society, 2019-01)
In recent years, there has been an increasing interest in nanomachines. Among them, current-driven ones deserve special attention as quantum effects can play a significant role there. Examples of the latter are the so-called ...
Quantitative comparison of Anderson impurity solvers applied to transport in quantum dots
(2020-01-01)
We study the single impurity Anderson model (SIAM) using the equations of motion method (EOM), the non-crossing approximation (NCA), the one-crossing approximation (OCA), and Wilson's numerical renormalization group (NRG). ...
Probing Individual Quantum Dots: Noise in Self-Assembled Systems
(AMER SCIENTIFIC PUBLISHERS, 2009)
In this work we explore the noise characteristics in lithographically-defined two terminal devices containing self-assembled InAs/InP quantum dots. The experimental ensemble of InAs dots show random telegraph noise (RTN) ...
Anomalous Goos-Hänchen shift in the Floquet scattering of Dirac fermions
(American Physical Society, 2019-09)
We study the inelastic scattering of two-dimensional massless Dirac fermions by an inhomogeneous time-dependent driving field. As a physical realization, we consider a monolayer graphene normally illuminated with a circularly ...
Nonadiabatic features of electron pumping through a quantum dot in the Kondo regime
(American Physical Society, 2008-12)
We investigate the behavior of the dc electronic current Jdc in an interacting quantum dot driven by two ac local potentials oscillating with a frequency Ω0 and a phase lag φ. We provide analytical functions to describe ...
Four-terminal resistance in a clean interacting quantum wire with invasive contacts
(Elsevier Science, 2012-08)
We investigate the behavior of the four-terminal resistance R4 pt in an interacting quantum wire described by a Luttinger liquid with an applied bias voltage V and coupled to two voltage probes. We extend previous results, ...