Efficiently improving the performance of noisy quantum computers

Autor: Samuele Ferracin, Akel Hashim, Jean-Loup Ville, Ravi Naik, Arnaud Carignan-Dugas, Hammam Qassim, Alexis Morvan, David I. Santiago, Irfan Siddiqi, Joel J. Wallman

Publikováno v: Quantum, Vol 8, p 1410 (2024)

Using near-term quantum computers to achieve a quantum advantage requires efficient strategies to improve the performance of the noisy quantum devices presently available. We develop and experimentally validate two efficient error mitigation protocol

Externí odkaz: https://doaj.org/article/ae17d5338f704da4b5ee64e6eae4c938

Improved upper bounds on the stabilizer rank of magic states

Autor: Hammam Qassim, Hakop Pashayan, David Gosset

Publikováno v: Quantum, Vol 5, p 606 (2021)

In this work we improve the runtime of recent classical algorithms for strong simulation of quantum circuits composed of Clifford and T gates. The improvement is obtained by establishing a new upper bound on the stabilizer rank of $m$ copies of the m

Externí odkaz: https://doaj.org/article/e3f85f9482d840f7a81bf8f5c880f625

Classical vs. quantum satisfiability in linear constraint systems modulo an integer

Autor: Hammam Qassim, Joel J. Wallman

A system of linear constraints can be unsatisfiable and yet admit a solution in the form of quantum observables whose correlated outcomes satisfy the constraints. Recently, it has been claimed that such a satisfiability gap can be demonstrated using

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7f5a84f14c39853749ae15a7d70de82
http://arxiv.org/abs/1911.11171

Real-time imaging of photonic quantum teleportation

Autor: Manuel Erhard, Ebrahim Karimi, Hammam Qassim, Harjaspreet Mand, Robert W. Boyd

Publikováno v: SPIE Newsroom.

The science fiction depiction of teleportation refers to the transfer of matter between two spatially separated spaces without the transfer of information. This largely differs from the concept of quantum teleportation, one of the most exciting conce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd27118e3972bc978c3f164ffedaa650
https://doi.org/10.1117/2.1201502.005800

Quantum walks and wavepacket dynamics with twisted photons

Autor: Filippo Cardano, Francesco Massa, Hammam Qassim, Ebrahim Karimi, Sergei Slussarenko, Domenico Paparo, Corrado de Lisio, Fabio Sciarrino, Enrico Santamato, Robert W. Boyd, Lorenzo Marrucci

Publikováno v: Science Advances 1 (2015). doi:10.1126/sciadv.1500087
info:cnr-pdr/source/autori:Filippo Cardano, Francesco Massa, Hammam Qassim, Ebrahim Karimi, Sergei Slussarenko, Domenico Paparo, Corrado de Lisio, Fabio Sciarrino, Enrico Santamato, Robert W. Boyd and Lorenzo Marrucci/titolo:Quantum walks and wavepacket dynamics with twisted photons/doi:10.1126%2Fsciadv.1500087/rivista:Science Advances/anno:2015/pagina_da:/pagina_a:/intervallo_pagine:/volume:1

The "quantum walk" has emerged recently as a paradigmatic process for the dynamic simulation of complex quantum systems, entanglement production and quantum computation. Hitherto, photonic implementations of quantum walks have mainly been based on mu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::a9aa635692dafb356a0fcf84149aefb3
http://www.cnr.it/prodotto/i/339086