Season 5 Episode 2 PhD Seminar

mercoledì 23 nov 2022, 18:15 → 19:30 Europe/Rome

Aula Conversi (VEF) and Zoom

23rd meeting of physics PhD seminar series

If you want to attend in person, sign the doodle here:
https://doodle.com/meeting/participate/id/dGZQPMJb

https://uniroma1.zoom.us/j/88384154993
Meeting ID: 883 8415 4993
Passcode: 385588

Please sign up to the mailing list:
https://groups.google.com/u/1/a/uniroma1.it/g/phd-seminars

You can submit abstracts using the following link:

https://forms.gle/mgwxqH7dwPHT66gk7

18:15 → 18:35 Percolation(s) on complex networks

Percolation is one of the best-studied processes in mathematical and statistical physics. It can be used both as a solid ground to test anaylitical tools, and as a model to describe a wide range of physical phenomena, from forest fires to epidemic spreading (even the process of making a coffee!). After describing what a "percolation process" is, I will introduce the concept of "complex networks", and we will explore the main features of percolation process on them, providing some everyday life examples. At the end, I will shortly present a new long-range percolation process called "Cumulative Merging Percolation".

Relatore: Lorenzo Cirigliano

distant_merging_2 - Lorenzo Cirigliano.pdf

PhD_seminars_Cirigliano.pdf

18:35 → 18:45 Dicussion

18:45 → 19:05 Dear Alice, it's Bob: an introduction to QKD

Cryptography, the science of keeping data and communications secure from potentially malicious adversaries, is a fundamental task in the modern-day world. However, in the near future, advances in the field of quantum computing could render insecure most "classical" encryption protocols. To avert this threat, Quantum Key Distribution (QKD) - arguably one of the most mature fields of quantum information technologies - exploits quantum mechanics itself to enable unconditionally secure communications between two parties. In this short talk, an introduction to quantum (and classical) cryptography will be given, together with an overview of the main concepts lying behind a concrete example of a Quantum Key Distribution protocol.

Relatore: Giovanni Rodari

qkd_slides.pdf

19:05 → 19:15 Discussion