Séminaire du Groupe de Travail "Quantum Information and Quantum Computing": Saad Yalouz, CNRS researcher (Laboratoire de Chimie Quantique)

Le groupe de travail "Quantum Information and Quantum Computing" à le plaisir de vous inviter séminaire de Saad Yalouz, CNRS researcher (Laboratoire de Chimie Quantique, Strasbourg)

Date: Vendredi 24 avril: 14h00-15h00

Lieu : Amphithéâtre Pierre Glorieux (CERLA)

Participation à distance : https://univ-lille-fr.zoom.us/j/98921142263?pwd=XEAE7xsZUSDANnojZqnwTVCqjR0Bzs.1

Titre de la présentation: Quantum Circuit Design for Polaritonic Chemistry

Résumé :
Simulating ab initio polaritonic chemistry (i.e., quantum chemistry in an optical cavity) on quantum computers presents a significant challenge, primarily due to the need for efficient encoding of strongly correlated “electron+photon” states within quantum circuits. Given that such problems involve both fermionic and bosonic degrees of freedom, it is natural to question whether conventional qubit-based approaches are optimal, or whether alternative quantum computing paradigms might offer more suitable solutions. In this talk, I will discuss three strategies for encoding coupled “fermion+boson” systems across different quantum computing platforms. More precisely, I will consider platforms that employ distinct types of quantum information units, namely: quBits, quDits, and quModes. For each architecture, I will introduce dedicated encoding schemes and highlight their performance in describing a so-called Light Induced Conical Intersection. The latter represents a characteristic spectral feature of polaritonic systems that is a direct signature of strong light-matter correlations.