Title: Probing Physics Beyond the Standard Model with the JILA eEDM Experiment Date/Time: 21-Dec, 11:00AM Venue: CQT Level 3 Seminar Room, S15-03-15
Abstract: The Standard Model describes much of what we know today, but there are still many mysteries out there that we cannot explain, like the nature of dark matter, and why we have more matter than anti-matter in our universe. Presently, there are many new theories Beyond the Standard Model (BSM) which introduce new particles and interactions, and they promise to explain these mysterious phenomena. Unfortunately, the plethora of BSMs make predictions that differ from one another, and it is up to the experimentalists to sift out the better ones from the mix. Measuring the electronâ€™s Electric Dipole Moment (eEDM) is one of the ways we can place constraints on these BSMs, which will narrow our scope of search for the new Standard Model. I will talk about how we are measuring the eEDM at JILA using trapped molecular ions, and some of the ongoing improvements to increase our sensitivity.
CQT Colloquium by Hoi-Kwong Lo, University of Toronto
Title: Cyber-security in a quantum world Date/Time: 20-Dec, 04:00PM Venue: CQT Level 3 Seminar Room, S15-03-15
Abstract: Quantum key distribution (QKD), promises in principle information-theoretic security based on the laws of physics, thus achieving the Holy Grail of communication security. Unfortunately, a practical QKD system rarely conforms to the idealized assumptions in security proofs. So, is QKD really secure in practice? Here, I survey the assumptions behind the security proofs of QKD and discuss about research efforts on quantum hacking and counter-measures about it. In particular, measurement-device-independent quantum key distribution (MDI-QKD) can automatically remove all side channel attacks on detectors, thus allowing the construction of QKD networks with *untrusted* relays. Recent results on MDI-QKD with asymmetric channel losses and twin-field (TF) type QKD protocols will also be discussed.