Unitary channel discrimination beyond group structures: Advantages of sequential and indefinite-causal-order strategies

TY - JOUR

T1 - Unitary channel discrimination beyond group structures: Advantages of sequential and indefinite-causal-order strategies

AU - Bavaresco, Jessica

AU - Murao, Mio

AU - Quintino, Marco Túlio

N1 - Funding Information: The authors thank Cyril Branciard for comments on the first version of the manuscript. The authors are also grateful for their computer, “Princess Bubblegum,” for performing very demanding calculations. J.B. acknowledges funding from the Austrian Science Fund (FWF) through Zukunftskolleg ZK03 and START Project No. Y879-N27. M.M. was supported by the MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) under Grant No. JPMXS0118069605 and by the Japan Society for the Promotion of Science (JSPS) through KAKENHI under Grant Nos. 17H01694, 18H04286, and 21H03394. M.T.Q. acknowledges the Austrian Science Fund (FWF) through the SFB project BeyondC (sub-project F7103), a grant from the Foundational Questions Institute (FQXi) as part of the Quantum Information Structure of Spacetime (QISS) Project (qiss.fr). The opinions expressed in this publication are those of the authors and do not necessarily reflect the views of the John Templeton Foundation. This project received funding from the European Union’s Horizon 2020 Research and Innovation Programme under Marie Skłodowska-Curie Grant Agreement No. 801110 and the Austrian Federal Ministry of Education, Science and Research (BMBWF). It reflects only the authors’ view, and the EU Agency is not responsible for any use that may be made of the information it contains. Publisher Copyright: © 2022 Author(s).

PY - 2022/4

Y1 - 2022/4

KW - QUANTUM CIRCUITS

UR - https://www.scopus.com/pages/publications/85128790434

U2 - 10.1063/5.0075919

DO - 10.1063/5.0075919

M3 - Article

AN - SCOPUS:85128790434

SN - 0022-2488

VL - 63

JO - Journal of Mathematical Physics

JF - Journal of Mathematical Physics

IS - 4

M1 - 042203

ER -