Improved discrimination of unitaries by entangled probes
G. Mauro D'Ariano, Paoloplacido Lo Presti, Matteo G. A. Paris
Abstract
We consider the problem of discriminating among a set of unitaries by means of measurements performed on the state undergoing the transformation. We show that use of entangled probes improves the discrimination in the two following cases: i) for a set of unitaries that are the UIR of a group and, ii) for any pair of transformations provided that multiple uses of the channel are allowed.
Create a lesson
Related papers
Comment on "Supervised Learning with Quantum Hamiltonian Embeddings" (arXiv:2610.26833)
Alexander G. Abanov, Luca Candelori, Kharen Musaelian
Data informed Ansatz Selection for Variational Quantum Circuits
Manav Seksaria, Advith Desu, Anil Prabhakar
Operational Thresholds for Long-Range Entanglement in Quantum Networks
Arn Caesar, Xinqi Hu, Kim Christensen
QECert: Formal Foundations for Quantum Error-Correction Theory in Lean
Keming He, Jiahan Chen, Enji Xiong et al.
Reopening the one clean qubit case of a semi-grand challenge
Christopher W. Mansell
Recoverability of Gravitational Entanglement under Decoherence
Yi-Xuan Wang, Julen S. Pedernales, Martin B. Plenio