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20232026
most citedEfficient discrimination between real and complex quantum theories

6 citations · 10 across the 13 of their papers we have counts for

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5 papers · 1 filter

quant-ph2024

Device-independent prepare-and-prepare bipartite null witness dimension test with a single joint measurement

Josep Batle, Tomasz Białecki, Tomasz Rybotycki +1

We propose a device-independent null witness dimensionality test with bipartite measurements and input from two separate parties. The dimension is determined from the rank of the m…

quant-ph2024★ 1 cited

Violation of no-signaling on a public quantum computer

Tomasz Rybotycki, Tomasz Białecki, Josep Batle +1

No-signaling is a consequence of the no-communication theorem that states that bipartite systems cannot transfer information unless a communication channel exists. It is also a by-…

quant-ph2024

Device-independent dimension leakage null test on qubits at low operational cost

Tomasz Rybotycki, Tomasz Białecki, Josep Batle +1

We construct a null test of the two-level space of a qubit, which is both device independent and needs a small number of different experiments. We demonstrate its feasibility on IB…

quant-ph2024★ 6 cited

Efficient discrimination between real and complex quantum theories

Josep Batle, Tomasz Białecki, Tomasz Rybotycki +2

We improve the test to show the impossibility of a quantum theory based on real numbers by a larger ratio of complex-to-real bound on a Bell-type parameter. In contrast to previous…

quant-ph2024

Cross-platform certification of the qubit space with a minimal number of parameters

Tomasz Rybotycki, Tomasz Białecki, Josep Batle +2

We demonstrate a determinant dimension witness of a qubit space. Our test has a minimal number of independent parameters. We achieve it by mapping the Bloch sphere -rotation a…