RT Journal Article
T1 Coupled Landau-Zener-Stuckelberg quantum dot interferometers
A1 Gallego Marcos, Fernando
A1 Sánchez, Rafael
A1 Platero, Gloria
AB We investigate the interplay between long-range and direct photon-assisted transport in a triple quantum dot chain where local ac voltages are applied to the outer dots. We propose the phase difference between the two ac voltages as an external parameter, which can be easily tuned to manipulate the current characteristics. For gate voltages in phase opposition we find quantum destructive interferences analogous to the interferences in closed-loop undriven triple dots. As the voltages oscillate in phase, interferences between multiple paths give rise to dark states. Those totally cancel the current, and could be experimentally resolved.
PB APS
SN 2469-9950
YR 2016
FD 2016-02-15
LK https://hdl.handle.net/10016/38682
UL https://hdl.handle.net/10016/38682
LA eng
NO This work was supported by the Spanish Ministry of Economy and Competitiveness (MICINN) via Grant No. MAT2014-58241-P. R.S. acknowledges support from the Juan de la Cierva posdoctoral program (MICINN).
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RD 3 jul. 2024