Date : May 30, 2023, 16:00 CET Koenraad Schalm (Leiden University) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 T-linear resistivity, optical conductivity and Planckian transport for a holographic local quantum critical metal in a periodic potential Abstract: High Tc cuprate strange metals are noted for a DC-resistivity that scales linearly with T from the onset of superconductivity to the crystal melting temperature, indicative of […]

Date : May 23, 2023, 15:00 CEST Christiana Pantelidou (University College Dublin ) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Non-linear response in real-time Holography Abstract: In this talk I will discuss the nonlinear response of a holographic medium under scalar forcing, focusing on retarded scalar three-point functions at finite temperature. I will start by reviewing the Skenderis-van Rees approach to […]

Date : May 16, 2023, 16:00 CEST Sašo Grozdanov (University of Edinburgh and University of Ljubljana) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Spectra, reconstructions and pole-skipping

Date : May 9, 2023, 16:00 CEST Pau Figueras (Queen Mary University London) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Simulating higher derivative theories of gravity Abstract: In this talk I will discuss some recent progress in modelling self-consistently alternative theories of gravity involving higher derivative corrections. In the first part, I will discuss the modifications of the standard gauges used […]

Date : May 2, 2023, 16:00 CEST Juan Hernandez (Vrije Universiteit, Brussel) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Holographic entanglement entropy and complexity in various holographic models Abstract: We overview some lessons about entanglement entropy and holographic complexity in various holographic models with tractable Hartman-Maldacena transitions. In particular, we focus on the easy island model, interpreting the leading contribution of […]

Date : March 21, 2023, 16:00 CET John McGreevy (University of California, San Diego) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Various Dimensions of Entanglement Bootstrap Abstract: Entanglement Bootstrap is a program to extract the universal information from quantum states. I’ll describe progress toward extracting topological field theory data from wavefunctions satisfying a few simple local axioms about their entanglement. Then […]

Date : April 4, 2023, 16:00 CEST Ioannis Matthaiakakis (University of Genova) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Non-dissipative Electrically Driven Fluids Abstract: Existing models of charged perfect fluids use as their starting point a thermal equilibrium state coupled to external sources, such as an external electric field. Consistency with thermal equilibrium requires said electric field to be either first […]

Date : February 28, 2023, 16:00 CET Eric Mefford (University of Victoria) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Zero sound and higher-form symmetries in compressible holographic phases Abstract: Certain holographic states of matter with a global U(1) symmetry support a sound mode at zero temperature, caused neither by spontaneous symmetry breaking of the global U(1) nor by the emergence of […]

Date : February 21, 2023, 16:00 CET Ronnie Rodgers (Nordita) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Holographic nodal-antinodal dichotomy from infrared scaling Abstract: Angle-resolved photoemission spectroscopy (ARPES) measurements in the pseudogap phase of cuprates reveal a Fermi surface seemingly made up of disconnected arcs: the electron spectral function exhibits sharp peaks in certain directions in momentum space, which appear to […]

Date : February 14, 2023, 14:00 CET Koji Hashimoto (Kyoto University) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Machine learning the bulk in AdS/CFT Abstract: Bulk reconstruction in AdS/CFT correspondence is a key idea revealing themechanism of it, and various methods were proposed to solve the inverseproblem. We use deep learning and identify the neural network as theemergent geometry, to reconstruct […]