| Sunday 5 May 2024 | |
| Events for day: Wednesday 23 February 2022 |
| 09:00 - 17:00 School 3rd Advanced School on Holography and Quantum Information Topics School PARTICLES AND ACCELERATORS The aim of this advanced school is to review and discuss the recent developments in connections between quantum information theory and holography. ... 11:00 - 12:00 Wednesday Weekly Seminar - google meet Quark Matter phase transition under extreme conditions: magnetic and rotation fields School PARTICLES AND ACCELERATORS The QCD phase transition encompasses thermodynamic information of existing matter in it and also it could serve as the equation of state for the dynamical evolutions that happen in the heavy-ion colliders. Traditionally, this phase is characterized by two independent quantities but the presence of other parameters such as magnetic or rotation fields can alter the shape of the phase. Its motivation comes from the production of large magnetic or rotation fields in the heavy-ion colliders. In this talk, we aim to investigate the phase transition of a dense quark matter within the effective Nambu-Jona Lasinio (NJL) model which is subjected to the ... 13:30 - 15:00 Weekly Seminar (Online) Cosmology in Finsler geometry https://www.skyroom.online/ch/soa/weekly-seminar School ASTRONOMY In this seminar, I will talk about cosmological implications of the Finsler geometry. The Finsler geometry could be considered as a generalization of the Riemannian geometry without the quadratic restriction. I will review the basic concepts of the Finsler geometry and postulate a gravitational field equation in this context. After that, I will consider the background FRW universe in this geometry and discuss its predictions for late time cosmology. I will also consider the dynamical system analysis of the model which appears to be richer than its Riemannian counterpart. At last, I will consider the first order cosmological perturbations of t ... 14:00 - 15:00 Combinatorics and Computing Weekly Seminar On the Size Ramsey Number of Stars Versus Cliques School MATHEMATICS For given graphs $G$ and $H$ and a graph $F$, we say that $F$ is Ramsey for $(G,H)$ and we write $F ightarrow (G,H)$, if for every 2-edge coloring of $F$, with colors red and blue, the graph $F$ contains either a red copy of $G$ or a blue copy of $H$. A natural question is how few vertices can a graph $F$ have, such that $F ightarrow (G,H)$? Frank P. Ramsey studied this question and proved that for given graphs $G$ and $H$, there exists a positive integer $n$ such that for the complete graph $K_{n}$ we have $K_{n} ightarrow (G,H)$. The smallest such $n$ is known as {it Ramsey number} of $G,H$ and is denoted by $R(G,H)$. Instead of minim ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Random Long-range interacting spin chains: Entanglement properties School PHYSICS Quantum information theoretical measures are useful tools for characterizing quantum dynamical phases. However, employing them to study excited states of random spin systems is a challenging problem. Here, we report results for the entanglement entropy (EE) scaling of excited eigenstates of random XX antiferromagnetic spin chains with long-range (LR) interactions decaying as a power law with distance with exponent $alpha$. To this end, we extend the real-space renormalization group technique for excited states (RSRG-X) to solve this problem with LR interaction. For comparison, we perform numerical exact diagonalization (ED) calc ... |