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arXiv · 1112.3420

Non-Markovian Transmission through Two Quantum Dots Connected by a Continuum

Yunshan Cao·Luting Xu·Jianyu Meng·Xin-Qi Li
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Abstract

We consider a transport setup containing a double-dot connected by a continuum. Via an exact solution of the time-dependent Schrödinger equation, we demonstrate a highly non-Markovian quantum-coherence-mediated transport through this dot-continuum-dot (DCD) system, which is in contrast with the common premise since in typical case a quantum particle does not reenter the system of interest once it irreversibly decayed into a continuum (such as the spontaneous emission of a photon). We also find that this DCD system supports an unusual steady state with unequal source and drain currents, owing to electrons irreversibly entering the continuum and floating there.

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Yunshan Cao, Luting Xu, Jianyu Meng, Xin-Qi Li. 2012-03-08. Non-Markovian Transmission through Two Quantum Dots Connected by a Continuum. https://doi.org/10.1016/j.physleta.2012.09.014

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