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22 Nov 2022
23 Nov 2022
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New Frontiers in Machine Learning and Quantum
from
Tuesday, 22 November 2022 (08:30)
to
Wednesday, 23 November 2022 (17:10)
Monday, 21 November 2022
Tuesday, 22 November 2022
09:00
Registration
Registration
09:00 - 09:20
Room: Reception
09:20
Welcome and Opening Remarks
-
Beni Yoshida
(
Perimeter Institute
)
Roger Melko
(
Perimeter Institute & University of Waterloo
)
Welcome and Opening Remarks
Beni Yoshida
(
Perimeter Institute
)
Roger Melko
(
Perimeter Institute & University of Waterloo
)
09:20 - 09:30
Room: PI/1-100 - Theatre
09:30
Quantum adiabatic speedup on a class of combinatorial optimization problems
-
Madelyn Cain
(
Harvard University
)
Quantum adiabatic speedup on a class of combinatorial optimization problems
Madelyn Cain
(
Harvard University
)
09:30 - 10:15
Room: PI/1-100 - Theatre
"One of the central challenges in quantum information science is to design quantum algorithms that outperform their classical counterparts in combinatorial optimization. In this talk, I will describe a modification of the quantum adiabatic algorithm (QAA) [1] that achieves a Grover-type speedup in solving a wide class of combinatorial optimization problem instances. The speedup is obtained over classical Markov chain algorithms including simulated annealing, parallel tempering, and quantum Monte Carlo. I will then introduce a framework to predict the relative performance of the standard QAA and classical Markov chain algorithms, and show problem instances with quantum speedup and slowdown. Finally, I will apply this framework to interpret results from a recent Rydberg atom array experiment [2], which suggest a superlinear speedup in solving the Maximum Independent Set problem on unit-disk graphs. [1] Farhi et al. (2001) Science 292, 5516 [2] Ebadi et al. (2022) Science 376, 6598"
10:15
Coffee Break
Coffee Break
10:15 - 10:30
10:30
Towards an artificial Muse for new ideas in Quantum Physics
-
Mario Krenn
(
Max Planck Institute for the Science of Light
)
Towards an artificial Muse for new ideas in Quantum Physics
Mario Krenn
(
Max Planck Institute for the Science of Light
)
10:30 - 11:15
Room: PI/1-100 - Theatre
11:15
Matchgate Shadows for Fermionic Quantum Simulation
-
Kianna Wan
(
Stanford University
)
Matchgate Shadows for Fermionic Quantum Simulation
Kianna Wan
(
Stanford University
)
11:15 - 12:00
Room: PI/1-100 - Theatre
In this talk, I'll describe new tomographic protocols for efficiently estimating various fermionic quantities, including both local observables (i.e., expectation values of local fermionic operators) and certain global properties (e.g., inner products between an unknown quantum state and arbitrary fermionic Gaussian states). Our protocols are based on classical shadows arising from random matchgate circuits. As a concrete application, they enable us to implement the recently introduced quantum-classical hybrid quantum Monte Carlo algorithm, without the exponential post-processing cost incurred by the original approach.
12:00
Lunch
Lunch
12:00 - 14:00
Room: PI/2-251 - Upper Bistro
14:00
Self-Correcting Quantum Many-Body Control using Reinforcement Learning with Tensor Networks
-
Friederike Metz
(
Okiniwa Institute of Science & Technology
)
Self-Correcting Quantum Many-Body Control using Reinforcement Learning with Tensor Networks
Friederike Metz
(
Okiniwa Institute of Science & Technology
)
14:00 - 14:45
Room: PI/1-100 - Theatre
Self-Correcting Quantum Many-Body Control using Reinforcement Learning with Tensor Networks
14:45
Coffee Break
Coffee Break
14:45 - 15:00
Room: PI/1-124 - Lower Bistro
15:00
A Study of Neural Network Field Theories
-
Anindita Maiti
(
Northeastern University
)
A Study of Neural Network Field Theories
Anindita Maiti
(
Northeastern University
)
15:00 - 15:45
Room: PI/1-100 - Theatre
The backbones of modern-day Deep Learning, Neural Networks (NN), define field theories on Euclidean background through their architectures, where field interaction strengths depend on the choice of NN architecture width and stochastic parameters. Infinite width limit of NN architectures, combined with independently distributed stochastic parameters, lead to generalized free field theories by the Central Limit Theorem (CLT). Small and large deviations from the CLT, due to finite architecture width and/or correlated stochastic parameters, respectively give rise to weakly coupled field theories and non-perturbative non-Lagrangian field theories in Neural Networks. I will present a systematic exploration of Neural Network field theories via a dual framework of NN parameters: non-Gaussianity, locality by cluster decomposition, and symmetries are studied without necessitating the knowledge of an action. Such a dual description to statistical or quantum field theories in Neural Networks can have potential implications for physics.
15:45
Quantum hypernetworks
-
Juan Felipe Carrasquilla Álvarez
(
Vector Institute & University of Toronto
)
Quantum hypernetworks
Juan Felipe Carrasquilla Álvarez
(
Vector Institute & University of Toronto
)
15:45 - 16:30
Room: PI/1-100 - Theatre
Wednesday, 23 November 2022
09:30
Representing quantum states with spiking neural networks
-
Stefanie Czischek
(
University of Ottawa
)
Representing quantum states with spiking neural networks
Stefanie Czischek
(
University of Ottawa
)
09:30 - 10:15
Room: PI/1-100 - Theatre
10:15
Coffee Break
Coffee Break
10:15 - 10:30
Room: PI/1-124 - Lower Bistro
10:30
Activation of Strong Local Passive States with Quantum Energy Teleportation Protocols
-
Nayeli Rodriquez Briones
(
University of California, Berkeley
)
Activation of Strong Local Passive States with Quantum Energy Teleportation Protocols
Nayeli Rodriquez Briones
(
University of California, Berkeley
)
10:30 - 11:15
Room: PI/1-100 - Theatre
"Strong local passivity is a property of multipartite systems from which it is impossible to locally extract energy. Surprisingly, if the system in a strong local passive state displays entanglement, it could be possible to locally activate energy by adding classical communication between different partitions of the system, through so-called ‘quantum energy teleportation’ protocols. In this talk, first, I will present how to fully characterize this distinct notion of local passivity by giving necessary and sufficient conditions using optimization techniques from semidefinite programming [1]. Then, I will introduce the minimal theoretical model of energy activation with a fully unitary quantum energy teleportation protocol [2]. Finally, I will present the first experimental observation of the local activation of a strong local passive state on a bipartite quantum system using nuclear magnetic resonance [2]. Refs. [1] Fundamental limitations to local energy extraction in quantum systems. ÁM Alhambra, G Styliaris, NA Rodriguez-Briones, J Sikora, E Martin-Martinez. Physical review letters 123 19, 190601 [2] Experimental activation of strong local passive states with quantum information. NA Rodríguez-Briones, H Katiyar, R Laflamme, E Martín-Martínez. ArXiv preprint arXiv:2203.16269"
11:15
Adaptive Quantum State Tomography with Active Learning
-
Hannah Lange
(
Harvard University
)
Adaptive Quantum State Tomography with Active Learning
Hannah Lange
(
Harvard University
)
11:15 - 12:00
Room: PI/1-100 - Theatre
12:00
Lunch
Lunch
12:00 - 14:00
Room: PI/2-251 - Upper Bistro
14:00
Learning in the quantum universe
-
Hsin-Yuan (Robert) Huang
(
California Institute of Technology
)
Learning in the quantum universe
Hsin-Yuan (Robert) Huang
(
California Institute of Technology
)
14:00 - 15:30
Room: PI/1-100 - Theatre
I will present recent progress in building a rigorous theory to understand how scientists, machines, and future quantum computers could learn models of our quantum universe. The talk will begin with an experimentally feasible procedure for converting a quantum many-body system into a succinct classical description of the system, its classical shadow. Classical shadows can be applied to efficiently predict many properties of interest, including expectation values of local observables and few-body correlation functions. I will then build on the classical shadow formalism to answer two fundamental questions at the intersection of machine learning and quantum physics: Can classical machines learn to solve challenging problems in quantum physics? And can quantum machines learn exponentially faster than classical machines?
15:30
Coffee Break
Coffee Break
15:30 - 16:00
Room: PI/1-124 - Lower Bistro
16:00
Gibbs Sampling of Periodic Potentials on a Quantum Computer
-
Arsalan Motamedi
(
University of Waterloo
)
Gibbs Sampling of Periodic Potentials on a Quantum Computer
Arsalan Motamedi
(
University of Waterloo
)
16:00 - 16:30
Room: PI/1-100 - Theatre
"Motivated by applications in machine learning, we present a quantum algorithm for Gibbs sampling from continuous real-valued functions defined on high dimensional tori. We show that these families of functions satisfy a Poincare inequality. We then use the techniques for solving linear systems and partial differential equations to design an algorithm that performs zeroeth order queries to a quantum oracle computing the energy function to return samples from its Gibbs distribution. We further analyze the query and gate complexity of our algorithm and prove that the algorithm has a polylogarithmic dependence on approximation error (in total variation distance) and a polynomial dependence on the number of variables, although it suffers from an exponentially poor dependence on temperature."
16:30
QuEra - quantum computing with neutral atoms:
-
Anna Knorr
(
Perimeter Institute
)
QuEra - quantum computing with neutral atoms:
Anna Knorr
(
Perimeter Institute
)
16:30 - 17:00
Room: PI/1-100 - Theatre
QuEra is a quantum computing start up located in Boston, spinning off from the groups in the physics and engineering departments of Harvard and MIT. I have spent this fall working at QuEra and will introduce you to the company and its neutral-atom quantum computing technology.
17:00
Thank you and Good-Bye
-
Roger Melko
(
Perimeter Institute & University of Waterloo
)
Beni Yoshida
(
Perimeter Institute
)
Thank you and Good-Bye
Roger Melko
(
Perimeter Institute & University of Waterloo
)
Beni Yoshida
(
Perimeter Institute
)
17:00 - 17:10
Room: PI/1-100 - Theatre