Seminar - Dr. Pratik Rath
2025-05-06 14:00 - 15:30 UTC
Speaker : Dr. Pratik Rath
University of California, Berkeley
Title : Entanglement Negativity and its Holographic Dual
Date : 6th May 2025
Time : 2:00 PM
Venue : LH-3, New Physical Science Building
Abstract:-
The entanglement negativity is a useful measure of quantum entanglement in bipartite mixed states. The holographic dual of this entanglement measure has been controversial with calculations based on CFT techniques conflicting with calculations in random tensor networks (RTNs) that predict replica symmetry breaking. In this talk, I will argue that replica symmetry is broken for general holographic states. The argument involves relating the entanglement negativity to the 1/2 Renyi entropy of a doubled state. In order to compute it holographically, I will also discuss a modified cosmic brane proposal for computing Renyi entropies for n

Colloquium - Dr. Ajjath Abdul Hameed
2025-05-06 16:00 - 17:00
Speaker : Dr. Ajjath Abdul Hameed
IPPP, Durham, UK
Title : Precision Physics for Particle Colliders
Date : 6th May 2025
Time : 4:00 PM
Venue : Auditorium – New Physical Science Building
Abstract:-
The diverse and complex phenomena we observe in nature stem from physical principles acting at the level of elementary particles. Understanding these building blocks has been a long-standing pursuit. The Standard Model (SM) remains the most successful framework for describing the behaviour of all known non-gravitational particles. Yet, several open questions indicate that it is not a complete theory. While experimental techniques have advanced significantly, direct evidence for physics beyond the SM has yet to emerge. In this context, precision measurements provide an alternative approach to explore new physics indirectly by probing for small deviations from SM predictions. This pursuit relies on advancements in high-energy particle colliders and our ability to perform precise theoretical calculations within the SM. In this colloquium, we will discuss recent developments in precision theory calculations in perturbative quantum chromodynamics, and their role in collider experiments.
Join Zoom Meeting: HERE
Meeting ID: 952 2540 8412
Passcode: [REDACTED]
