Zobrazeno 1 - 10
of 412
pro vyhledávání: '"Scala Giovanni"'
We develop an optimized hardware strategy to mitigate errors in a noisy qubit. Our scheme builds on the physical principle of error filtration and exploits auxiliary qubits. Both signal and ancillas are subject to local noise, yet constructive interf
Externí odkaz:
http://arxiv.org/abs/2409.01398
Autor:
Gigena, Nicolas, Panwar, Ekta, Scala, Giovanni, Araújo, Mateus, Farkas, Máté, Chaturvedi, Anubhav
The degree of experimentally attainable nonlocality, as gauged by the amount of loophole-free violation of Bell inequalities, remains severely limited due to inefficient detectors. We address an experimentally motivated question: Which quantum strate
Externí odkaz:
http://arxiv.org/abs/2405.08743
A family of linear positive maps in the algebra of $3 \times 3$ complex matrices proposed recently in Bera et al. arXiv:2212.03807 is further analyzed. It provides a generalization of a seminal Choi nondecomposable extremal map in $M_3$. We investiga
Externí odkaz:
http://arxiv.org/abs/2312.02814
Autor:
Mandarino, Antonio, Scala, Giovanni
Publikováno v:
Entropy 2023, 25(1), 94
The theorem developed by John Bell constituted the starting point of a revolution that translated a philosophical question about the nature of reality into the broad and intense field of research of the quantum information technologies. We focus on a
Externí odkaz:
http://arxiv.org/abs/2310.09231
Autor:
Scala, Giovanni, Mandarino, Antonio
Publikováno v:
Int J Theor Phys 63, 17 (2024)
We explore the relationship between Kochen-Specker quantum contextuality and Bell-nonclassicality for ensembles of two-qubit pure states. We present a comparative analysis showing that the violation of a noncontextuality inequality on a given quantum
Externí odkaz:
http://arxiv.org/abs/2310.09047
Publikováno v:
Phys. Rev. A 109, 022230, 2024
Paw{\l}owski and Winter's hyperbit theory, proposed in 2012, presented itself as an alternative to quantum theory, suggesting novel ways of redefining entanglement and classical communication paradigms. This research undertakes a meticulous reevaluat
Externí odkaz:
http://arxiv.org/abs/2308.16114
We frame entanglement detection as a problem of random variable inference to introduce a quantitative method to measure and understand whether entanglement witnesses lead to an efficient procedure for that task. Hence we quantify how many bits of inf
Externí odkaz:
http://arxiv.org/abs/2308.07744
The Bell inequalities stand at the cornerstone of the developments of quantum theory on both the foundational and applied side. The discussion started as a way to test whether the quantum description of reality is complete or not, but it developed in
Externí odkaz:
http://arxiv.org/abs/2302.06320
We present a generalization of the family of linear positive maps in $M_3$ proposed thirty years ago by Cho et al. (Linear Algebra Appl. ${\bf 171}$, 213 (1992)) as a generalization of the seminal Choi non-decomposable map. The necessary and sufficie
Externí odkaz:
http://arxiv.org/abs/2212.03807
Publikováno v:
Physical Review A 108, 022207(2023)
Interference phenomena are often claimed to resist classical explanation. However, such claims are undermined by the fact that the specific aspects of the phenomenology upon which they are based can in fact be reproduced in a noncontextual ontologica
Externí odkaz:
http://arxiv.org/abs/2211.09850