7 papers · 1 filter
Robust CHSH Self-Testing with Finite-Energy GKP States
Farzin Salek, Masahito Hayashi
We present a full-oscillator analysis of a finite-energy GKP CHSH test whose observed score yields robust Bell-pair self-testing. Periodically binned position and momentum give the…
Entanglement sharing schemes
Zahra Khanian, Dongjin Lee, Debbie Leung +7
We ask how quantum correlations can be distributed among many subsystems. To address this, we define entanglement sharing schemes (ESS) where certain pairs of subsystems allow enta…
Extendibility of Fermionic Gaussian States
Amir-Reza Negari, Farzin Salek
We investigate -extendibility of fermionic Gaussian states, a property central to quantum correlations and approximations of separability. We show that these states are…
Efficiently Computable Limits on EPR Pair Generation in Quantum Broadcast Channels
Patrick Hayden, Debbie Leung, Hjalmar Rall +1
We investigate the generation of EPR pairs between three observers in a general causally structured setting, where communication occurs via a noisy quantum broadcast channel. The m…
New Protocols for Conference Key and Multipartite Entanglement Distillation
Farzin Salek, Andreas Winter
We approach two interconnected problems of quantum information processing in networks: Conference key agreement and entanglement distillation, both in the so-called source model wh…
Quantum communication on the bosonic loss-dephasing channel
Francesco Anna Mele, Farzin Salek, Vittorio Giovannetti +1
Quantum optical systems are typically affected by two types of noise: photon loss and dephasing. Despite extensive research on each noise process individually, a comprehensive unde…