Joseph Bowles - scalable training of large quantum machine language models

Thu, 16 Jan 2025 00:00:00 +0000

scalable training of large quantum machine language models

Ce séminaire, donné par Joseph Bowles, aura lieu le 16 January 2025, à 15:0. Il aura lieu en salle 24-25/405.

Vous trouverez un plan du campus ici.

Résumé

I will show how quantum circuits comprised of commuting gates allow one to overcome a number of important challenges related to the scaling of quantum machine learning models. For generative machine leaning, I will show how training can be done entirely on classical hardware. This leads to models with thousands of qubits and millions of parameters that can be trained on current hardware, with competitive results to classical machine learning methods. The talk is based on the arxiv papers 2306.14962 and 2501.04776 as well as upcoming work.

Device-independent and semi-device-independent entanglement certification in broadcast Bell scenarios

Sun, 01 Jan 2023 00:00:00 +0000

It has recently been shown that by broadcasting the subsystems of a bipartite quantum state, one can activate Bell nonlocality and significantly improve noise tolerance bounds for device-independent entanglement certification. In this work we strengthen these results and explore new aspects of this phenomenon. First, we prove new results related to the activation of Bell nonlocality. We construct Bell inequalities tailored to the broadcast scenario, and show how broadcasting can lead to even stronger notions of Bell nonlocality activation. In particular, we exploit these ideas to show that bipartite states admitting a local hidden-variable model for general measurements can lead to genuine tripartite nonlocal correlations. We then study device-independent entanglement certification in the broadcast scenario, and show through semidefinite programming techniques that device-independent entanglement certification is possible for the two-qubit Werner state in essentially the entire range of entanglement. Finally, we extend the concept of EPR steering to the broadcast scenario, and present novel examples of activation of the two-qubit isotropic state. Our results pave the way for broadcast-based device-independent and semi-device-independent protocols.

Joseph Bowles | LIP6 - Équipe QI

Joseph Bowles - scalable training of large quantum machine language models

scalable training of large quantum machine language models

Résumé

Device-independent and semi-device-independent entanglement certification in broadcast Bell scenarios