205 citations · 1.8k across the 45 of their papers we have counts for
5 papers · 2 filters
One-to-one mapping between steering and joint measurability problems
Roope Uola, Costantino Budroni, Otfried Gühne +1
Quantum steering refers to the possibility for Alice to remotely steer Bob's state by performing local measurements on her half of a bipartite system. Two necessary ingredients for…
Extreme violation of local realism in quantum hypergraph states
Mariami Gachechiladze, Costantino Budroni, Otfried Gühne
Hypergraph states form a family of multiparticle quantum states that generalizes the well-known concept of Greenberger-Horne-Zeilinger states, cluster states, and more broadly grap…
Quantum non-demolition measurement enables macroscopic Leggett-Garg tests
Costantino Budroni, Giuseppe Vitagliano, Giorgio Colangelo +4
We show how a test of macroscopic realism based on Leggett-Garg inequalities (LGIs) can be performed in a macroscopic system. Using a continuous-variable approach, we consider quan…
Contextuality in phase space
Ali Asadian, Costantino Budroni, Frank E. S. Steinhoff +2
We present a general framework for contextuality tests in phase space using displacement operators. First, we derive a general condition that a single-mode displacement operator sh…
Necessary and sufficient condition for quantum state-independent contextuality
Adan Cabello, Matthias Kleinmann, Costantino Budroni
We solve the problem of whether a set of quantum tests reveals state-independent contextuality and use this result to identify the simplest set of the minimal dimension. We also sh…