6 citations · 19 across the 12 of their papers we have counts for
12 papers
Trade-offs and experimental feasibility of nonlocal polygamy with two-outcome Bell inequalities
Josep Batle, Tomasz Rybotycki, Tomasz Białecki +2
Entanglement and Bell nonlocality have different sharing constraints across subsystems of a multipartite quantum system. We examine simultaneous violations of Bell inequalities wit…
Identical, independent quantum weak measurements violate objective realism
Tomasz Rybotycki, Tomasz Białecki, Josep Batle +4
We demonstrate violation of objective realism in quantum world using unconstrained weak measurements. Instead of limited Leggett-Garg approach with artificial bounds on the observe…
Testing time order and Leggett-Garg inequalities with noninvasive measurements on public quantum computers
Tomasz Rybotycki, Tomasz Białecki, Josep Batle +4
We demonstrate the first violation of the Leggett-Garg inequality and time-order noninvariance on public quantum computers using genuine noninvasive measurements. By gathering suff…
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…
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-…
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…
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…
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…
Quantum null-hypothesis device-independent Schmidt rank witness
Josep Batle, Tomasz Białecki, Tomasz Rybotycki +2
We investigate the dimensionality of bipartite quantum systems by construction of a device-independent null witness test. This test assesses whether a given bipartite state conform…
Quantum dimension witness with a single repeated operation
Tomasz Białecki, Tomasz Rybotycki, Josep Batle +1
We present a simple null test of a dimension of a quantum system, using a single repeated operation in the method of delays, assuming that each instance is identical and independen…
Precise certification of a qubit space
Tomasz Białecki, Tomasz Rybotycki, Josep Batle +2
We demonstrate an implementation of the precise test of dimension on the qubit, using the public IBM quantum computer, using the determinant dimension witness. The accuracy is belo…
Testing accuracy of qubit rotations on a public quantum computer
Tomasz Białecki, Tomasz Rybotycki, Jakub Tworzydło +1
We analyze the results of the test of qubit rotations on the public quantum computer provided by IBM. We measure a single qubit rotated by about a random axis, and we a…