no code implementations • 21 Apr 2022 • Yannick Deville, Alain Deville
We succeed in solving this problem by exploiting a fourth-order statistical parameter of state coefficients, in addition to second-order statistics.
no code implementations • 5 Jan 2021 • Yannick Deville, Alain Deville
Our methods are especially useful in a quantum computer, that we propose to more briefly call a "quamputer": BQPT and BHPE simplify the characterization of the gates of quamputers; BQSS and BQSR allow one to design quantum gates that may be used to compensate for the non-idealities that alter states stored in quantum registers, and they open the way to the much more general concept of self-adaptive quantum gates (see longer version of abstract in paper).
no code implementations • 18 Sep 2019 • Yannick Deville, Alain Deville
On the other hand, usual QPT methods require one to be able to prepare many copies of the same (known) input state, which is constraining.
no code implementations • 24 Feb 2017 • Charlotte Revel, Yannick Deville, Véronique Achard, Xavier Briottet
Unconstrained Pixel-by-pixel NMF (UP-NMF) is a new blind source separation method based on the assumption of a linear mixing model, which can deal with intra-class variability.