Title : |
Cold atom simulation and thermalisation aspects of holographic quantum matter |
|
Speaker | : | Soumik Bandyopadhyay , University of Trento, Italy |
Date | : | January 02, 2025 |
Time | : | 3:30 PM |
Venue | : | Seminar Room 363C |
Abstract | : |
Quantum simulation of strongly correlated quantum matter is a challenging research topic with a wide range of applications across various disciplines, including condensed matter physics, high-energy physics, nuclear physics, and quantum gravity. In this presentation, we shall discuss cold-atom quantum simulation schemes and the thermalisation characteristics of strongly correlated many-body systems that exhibit intriguing holographic and quantum chaotic properties. In the beginning, we shall discuss our recent investigations of disordered, all-to-all interacting cold atomic systems in optical cavity setups that have opened a gateway for the quantum simulation of such models. Then, we shall discuss the cavity QED implementation of the Sachdev-Ye-Kitaev (SYK) model, which serves as the paradigmatic model for holographic quantum matter. We shall learn about the model's intriguing out-of-equilibrium universal dynamics. Towards this, our general theoretical methodology reveals that the disorder-averaged unitary evolution can effectively be described by a Lindbladian evolution. Furthermore, we shall understand the eigenstate thermalisation hypothesis in non-Hermitian quantum systems by considering the non-Hermitian incarnation of the SYK model as a testbed. At the end, we shall briefly discuss how quantum chaos can be used as a resource for quantum state designs, also known as deep thermalisation in many-body quantum systems. |