Reinforcement-learning-assisted quantum optimization

Autor: Matteo M. Wauters, Emanuele Panizon, Glen B. Mbeng, Giuseppe E. Santoro

Publikováno v: Physical Review Research, Vol 2, Iss 3, p 033446 (2020)

We propose a reinforcement learning (RL) scheme for feedback quantum control within the quantum approximate optimization algorithm (QAOA). We reformulate the QAOA variational minimization as a learning task, where an RL agent chooses the control para

Externí odkaz: https://doaj.org/article/c78e915cc1c646ca84e57ff3863624a2

Electronic transport in double-nanowire superconducting islands with multiple terminals

Autor: Alexandros Vekris, Juan Carlos Estrada Saldaña, Thomas Kanne, Thor Hvid-Olsen, Mikelis Marnauza, Dags Olsteins, Matteo M. Wauters, Michele Burrello, Jesper Nygård, Kasper Grove-Rasmussen

We characterize in-situ grown parallel nanowires bridged by a superconducting island. The magnetic-field and temperature dependence of Coulomb blockade peaks measured across different pairs of nanowire ends are consistent with a sub-gap state extende

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccf2771621723ff414f59e19aca768c5

Polynomial scaling of the quantum approximate optimization algorithm for ground-state preparation of the fully connected p -spin ferromagnet in a transverse field

Autor: Matteo M. Wauters, Giuseppe E. Santoro, Glen Bigan Mbeng

Publikováno v: Wauters, M M, Mbeng, G B & Santoro, G E 2020, ' Polynomial scaling of the quantum approximate optimization algorithm for ground-state preparation of the fully connected p-spin ferromagnet in a transverse field ', Physical Review A, vol. 102, no. 6, 062404 . https://doi.org/10.1103/PhysRevA.102.062404

We show that the quantum approximate optimization algorithm (QAOA) can construct, with polynomially scaling resources, the ground state of the fully connected $p$-spin Ising ferromagnet, a problem that notoriously poses severe difficulties to a vanil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::045392c6403e8d68581cf65c71221bcd
https://curis.ku.dk/portal/da/publications/polynomial-scaling-of-the-quantum-approximate-optimization-algorithm-for-groundstate-preparation-of-the-fully-connected-p-spin-ferromagnet-in-a-transverse-field(304258de-bb6d-4865-91f7-9f66151851fb).html

Second Harmonic Revisited: An Analytic Quantum Approach

Autor: Maria Bondani, Alessia Allevi, Matteo M. Wauters, Nadir Fasola, Giovanni Chesi

Publikováno v: Applied Sciences, Vol 9, Iss 8, p 1690 (2019)
Applied Sciences
Volume 9
Issue 8

We address the second-harmonic generation process in a quantum frame. Starting with a perturbative approach, we show that it is possible to achieve a number of analytic results, ranging from the up-conversion probability to the statistical properties

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e551c1cdf19c6ca60af90fd4a7e3fb4
https://www.mdpi.com/2076-3417/9/8/1690

Direct comparison of quantum and simulated annealing on a fully-connected Ising ferromagnet

Autor: Giuseppe E. Santoro, Rosario Fazio, Hidetoshi Nishimori, Matteo M. Wauters

Publikováno v: Physical review. A (Online) 96 (2017): 22326. doi:10.1103/PhysRevA.96.022326
info:cnr-pdr/source/autori:Wauters M.M.; Fazio R.; Nishimori H.; Santoro G.E./titolo:Direct comparison of quantum and simulated annealing on a fully connected Ising ferromagnet/doi:10.1103%2FPhysRevA.96.022326/rivista:Physical review. A (Online)/anno:2017/pagina_da:22326/pagina_a:/intervallo_pagine:22326/volume:96

We compare the performance of quantum annealing (QA, through Schr\"odinger dynamics) and simulated annealing (SA, through a classical master equation) on the $p$-spin infinite range ferromagnetic Ising model, by slowly driving the system across its e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e60c794fec5eebc6c217710d9ef2642b