7 papers
Robust self-test of the maximally entangled state of two-qubits without assuming unitary observables
Alexandre C. Orthey, Magdalena StobiÅska-Moretto
Standard device-independent self-testing uses Naimark dilation to assume projective measurements, masking the operational limitations of realistic non-unitary observables. We estab…
Optimality of universal conclusive entanglement concentration protocols
Alexandre C. Orthey, Aby Philip, Tulja Varun Kondra +1
Entanglement concentration is essential for quantum technologies, yet rigorous bounds on the success probability for universal protocols (those requiring no prior knowledge about t…
Certifying classes of -outcome measurements with quantum steering
Alexandre C. Orthey, Remigiusz Augusiak
Device-independent (DI) certification schemes are based on minimal assumptions about the quantum system under study, which makes the most desirable among certification schemes. How…
Almost device-independent certification of GME states with minimal measurements
Shubhayan Sarkar, Alexandre C. Orthey, Gautam Sharma +2
Device-independent certification of quantum states enables the characterization of states within a device under minimal physical assumptions. A major problem in this regard is to c…
Correcting for finite statistics effects in a quantum steering experiment
Sophie Engineer, Ana C. S. Costa, Alexandre C. Orthey +7
Verifying entanglement between parties is essential for creating secure quantum communication. However, finite statistics can lead to false positive outcomes in any tests for entan…
High-dimensional monitoring and the emergence of realism via multiple observers
Alexandre C. Orthey, Pedro R. Dieguez, Owidiusz Makuta +1
Correlation is the basic mechanism of every measurement model, as one never accesses the measured system directly. Instead, correlations are created, codifying information about th…