PIRSA:18100091

Video URL

https://pirsa.org/18100091

Self-testing of quantum systems

Kaniewski, J. (2018). Self-testing of quantum systems. Perimeter Institute for Theoretical Physics. https://pirsa.org/18100091

Kaniewski, Jędrzej. Self-testing of quantum systems. Perimeter Institute for Theoretical Physics, Oct. 16, 2018, https://pirsa.org/18100091 

          @misc{ scivideos_PIRSA:18100091,
            doi = {10.48660/18100091},
            url = {https://pirsa.org/18100091},
            author = {Kaniewski, J{\k e}drzej},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Self-testing of quantum systems},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2018},
            month = {oct},
            note = {PIRSA:18100091 see, \url{https://scivideos.org/pirsa/18100091}}
          }

Jędrzej Kaniewski Center for Theoretical Physics of the Polish Academy of Sciences

Talk numberPIRSA:18100091
DOI10.48660/18100091
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Violations of Bell inequalities have traditionally been used to refute a local-realistic description of the world. Not surprisingly, under the assumption that the world is quantum, they can be used to certify quantum devices. What is surprising is that in some cases this characterisation turns out to be (almost) complete, i.e.~we can determine (almost) everything about the devices and this phenomenon is known as self-testing of quantum systems. Although the first self- testing results can be traced back to the works of Tsirelson published in the 80's, the topic has remained largely unknown until the seminal work of Mayers and Yao in 1998. It has received further exposure with the advent of device-independent quantum cryptography to which it is closely connected. In this talk I will give a brief introduction to the topic of self-testing and discuss some recent developments, e.g.~robust self-testing, weak self-testing, self-testing of entangled measurements, self-testing of high-dimensional systems or self-testing in prepare-and-measure scenarios.