Ladies and Gentlemen. Due to the coronavirus epidemic in Poland, the CTP PAS is operating in a limited way. In particular, until further notice the secretariat and the accountancy of the CTP PAS will be working only remotely. Contact with the administration is possible only by an e-mail. We are sorry for any inconvenience.

Seminar details

Name Quantum Information and Quantum Computing working group
Title A universal scheme for robust self-testing in the prepare-and-measure scenario

We consider the problem of certification of arbitrary ensembles of pure states and projective measurements solely form the experimental statistics in the prepare-and-measure scenario assuming the upper bound on the dimension of the Hilbert space. To this aim, we propose a universal and intuitive scheme based on establishing perfect correlations between target states and suitably-chosen projective measurements. The method works in all finite dimensions and allows for robust certification of the overlaps between arbitrary preparation states and between the corresponding measurement operators. Finally, we prove that for qubits our technique can be used to robustly self-test arbitrary configurations of pure quantum states and projective measurements. These results pave the way towards practical application of the prepare-and-measure paradigm to certification of quantum devices. 

The talk will be based on joint work with Nikolai Miklin: arXiv:2003.01032.

Time Wednesday, 11 March 2020, at 10:30 CET The seminar was held!

Dr hab. Michał Oszmaniec  (CFT PAN)

Seminar Language English
Organisers Michał Oszmaniec; Filip Maciejewski;