Fundamental limits on key rates in device-independent quantum key distribution

E Kaur, MM Wilde, A Winter - New Journal of Physics, 2020 - iopscience.iop.org
In this paper, we introduce intrinsic non-locality and quantum intrinsic non-locality as
quantifiers for Bell non-locality, and we prove that they satisfy certain desirable properties …

Upper bounds on device-independent quantum key distribution

M Christandl, R Ferrara, K Horodecki - Physical Review Letters, 2021 - APS
Quantum key distribution (QKD) is a method that distributes a secret key to a sender and a
receiver by the transmission of quantum particles (eg, photons). Device-independent …

An operational environment for quantum self-testing

M Christandl, NG Houghton-Larsen, L Mancinska - Quantum, 2022 - quantum-journal.org
An Operational Environment for ewline Quantum Self-Testing Page 1 An Operational
Environment for Quantum Self-Testing Matthias Christandl, Nicholas Gauguin Houghton-Larsen …

Restriction on the local realism violation in three-qubit states and its relation with tripartite entanglement

A Barasiński - Scientific Reports, 2018 - nature.com
Quantum entanglement and non-locality are two special aspects of quantum correlations.
The relationship between multipartite entanglement and non-locality is at the root of the …

Positive tensor products of maps and n-tensor-stable positive qubit maps

SN Filippov, KY Magadov - Journal of Physics A: Mathematical …, 2017 - iopscience.iop.org
We analyze positivity of a tensor product of two linear qubit maps, ${{\Phi} _ {1}}\otimes
{{\Phi} _ {2}} $. Positivity of maps ${{\Phi} _ {1}} $ and ${{\Phi} _ {2}} $ is a necessary but not a …

Family of Bell inequalities violated by higher-dimensional bound entangled states

KF Pál, T Vértesi - Physical Review A, 2017 - APS
We construct (d× d)-dimensional bound entangled states, which violate, for any d> 2, a
bipartite Bell inequality introduced in this paper. We conjecture that the proposed class of …

[图书][B] Limitations on protecting information against quantum adversaries

E Kaur - 2020 - search.proquest.com
The aim of this thesis is to understand the fundamental limitations on secret key distillation in
various settings of quantum key distribution. We first consider quantum steering, which is a …

Bounds on quantum nonlocality

G Murta - arXiv preprint arXiv:1704.04922, 2017 - arxiv.org
One of the main goals in the study of quantum nonlocality is to determine the maximum
violation achieved by quantum correlations in a Bell scenario. However, given a Bell …

Bounds on quantum nonlocality

GM Guimarães - 2016 - repositorio.ufmg.br
Nonlocality is one of the most intriguing aspects of quantum theory which reveals that nature
is intrinsically different than our classical view of the world. One of the main goals in the …