seminaire passé

[SEMINAR] April 18 2023 – Quantum computers: What are they? What are they supposed to be good at? Will they work? 🧑‍🏫 by Xavier Waintal 

🧑‍🏫 Xavier Waintal, CEA Grenoble, PHELIQS
🌎 April 18 2023
☕️ 9:30 AM
🏢 Maison de la Simulation, Batiment Digiteo Saclay, Salle Mandelbrot


In the last three decades, our ability to build and control quantum states has improved dramatically and could become the basis of a new form of numerical calculation. While these machines are still in their infancy  (no existing quantum computer can multiply 5 by 3), the hope is that for a very specific class of problem, they could be exponentially faster than their classical counterpart. In this talk, I will give an introduction to quantum computing from the point of view of a physicist. In particular I will emphasize how the main quantum computing ressource, entanglement, is also its biggest problem, decoherence.