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- E Kawakami, P Scarlino, +7 authors L M K Vandersypen
- Nature nanotechnology
- 2014

Nanofabricated quantum bits permit large-scale integration but usually suffer from short coherence times due to interactions with their solid-state environment. The outstanding challenge is to engineer the environment so that it minimally affects the qubit, but still allows qubit control and scalability. Here, we demonstrate a long-lived single-electron… (More)

- F R Braakman, P Barthelemy, C Reichl, W Wegscheider, L M K Vandersypen
- Nature nanotechnology
- 2013

Controlling long-distance quantum correlations is central to quantum computation and simulation. In quantum dot arrays, experiments so far rely on nearest-neighbour couplings only, and inducing long-distance correlations requires sequential local operations. Here, we show that two distant sites can be tunnel-coupled directly. The coupling is mediated by… (More)

- Nicola Rossi, Floris R Braakman, +4 authors Martino Poggio
- Nature nanotechnology
- 2017

Self-assembled nanowire (NW) crystals can be grown into nearly defect-free nanomechanical resonators with exceptional properties, including small motional mass, high resonant frequency and low dissipation. Furthermore, by virtue of slight asymmetries in geometry, a NW's flexural modes are split into doublets oscillating along orthogonal axes. These… (More)

- D Cadeddu, F R Braakman, +4 authors M Poggio
- Nano letters
- 2016

We demonstrate nonlinear coupling between two orthogonal flexural modes of single as-grown GaAs nanowires. The resonant frequency of one mode can be shifted over many line widths by mechanically driving the other mode. We present time-domain measurements of the mode coupling and characterize it further by pump-probe experiments. Measurements show that a… (More)

- Seigo Tarucha, P. Scarlino, +7 authors L. M. K. Vandersypen
- 2014

- F. R. Braakman, D. Cadeddu, +4 authors M. Poggio
- 2014

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