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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…
Thermodynamics of free bosons and fermions in the hyperball
Josep Batle, Boris A. Malomed
Many-particle systems pose commonly known computational challenges in quantum theory. The obstacles arise from the difficulty in finding sets of eigenvalues and eigenvectors of the…
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-…