![[Logo] Matemática @ Instituto Superior Técnico](/img/DM_CMYK_clipped.svg "Matemática @ Instituto Superior Técnico")
10/07/2019, 10:00 — 11:00 — Sala P3.10, Pavilhão de Matemática
Joaquin Fernandez Rossier, International Iberian Nanotechnology Laboratory
Quantum Simulation with quantum computers
In this seminar I will do 3 things.
First, I will review why the quantum many-body problem is very important and I will discuss the concept of exponential wall, that makes it intractable with conventional computing.
Second, I will discuss the use of digital quantum computers to tackle the many body problem. Specifically, I will review how the phase estimation algorithm can be used to obtain the eigenvalues of a very large class of Hamiltonians, including those of interest in the many body problem.
Finally, I will show our attempts to carry out actual quantum computations for quantum simulation of three simple model Hamiltonians (Zeeman, Ising, Hubbard) using IBM quantum hardware. I will discuss in some detail our approach for post-processing analysis and the challenges for digital quantum simulation with state of the art hardware.
