Seminars
March
Maximal intrinsic randomness of a quantum systemOne of the most counterintuitive aspects of quantum theory is its claim that there is intrinsic randomness in the physical world. Arising from the phenomenon of superposition, this randomness guarantees that the outcomes of a well-chosen measurement on a pure quantum system cannot be predicted by even the most powerful eavesdropper. On a foundational level, this non-predictability distinguishes quantum objects from their classical, everyday counterparts; on the practical side, intrinsic randomness has been exploited in the design of quantum random number generators. In this talk, I will discuss some common measures, or entropies, that are used to quantify intrinsic randomness. I will then share some recent work in which we solved for the maximal randomness of any quantum system (including noisy ones) according to each of these quantifiers, as well as the measurements used to extract it. |
|
Speaker | Fionnuala Curran ICFO |
Time | Thursday 28th March, 2pm |
Location | Beech Hill B106 |