6 papers
Typicality of Steering for Two-qubit States
Gerard Anglès Munné, PaweÅ CieÅliÅski, Tamás Vértesi +1
Phenomena that slip beyond the grasp of our classical intuition reveal uniquely quantum effects that deepen our understanding of the physical world and enable advances in informati…
First-order optimality conditions for non-commutative optimization problems
Mateus Araújo, Igor Klep, Andrew J. P. Garner +2
We consider the problem of optimizing the state average of a polynomial of non-commuting variables, over all states and operators satisfying a number of polynomial constraints, and…
Self-testing of semisymmetric informationally complete measurements in a qubit prepare-and-measure scenario
Gábor Drótos, Károly F. Pál, Tamás Vértesi
Self-testing is a powerful method for certifying quantum systems. Initially proposed in the device-independent (DI) setting, self-testing has since been relaxed to the semi-device-…
Self-testing in prepare-and-measure scenarios and a robust version of Wigner's theorem
Miguel Navascues, Károly F. Pál, Tamás Vértesi +1
We consider communication scenarios where one party sends quantum states of known dimensionality , prepared with an untrusted apparatus, to another, distant party, who probes th…
Unmasking the Polygamous Nature of Quantum Nonlocality
PaweÅ CieÅliÅski, Lukas Knips, Mateusz Kowalczyk +4
Quantum mechanics imposes limits on the statistics of certain observables. Perhaps the most famous example is the uncertainty principle. Similar trade-offs also exist for the simul…
Analysing quantum systems with randomised measurements
PaweÅ CieÅliÅski, Satoya Imai, Jan Dziewior +6
Measurements with randomly chosen settings determine many important properties of quantum states without the need for a shared reference frame or calibration. They naturally emerge…