Date : June 28, 2022, 16:00 CEST Jörg Schmalian (Karlsruhe Institute of Technology) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Superconductivity without quasiparticles: Quantum critical Eliashberg theory and its holographic dual Abstract: Superconductivity is abundant near quantum-critical points, where fluctuations suppress the formation of Fermi liquid quasiparticles and the Bardeen-Cooper-Schrieffer theory no longer applies. Two very distinct approaches have been […]

Date : May 10, 2022, 16:00 CEST Andrei Parnachev (Trinity College Dublin) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Heavy and thermal states in CFT and holography Abstract: I will talk about heavy states in CFTs in d>2. Implications for holography, thermal physics and possible higher spin symmetries relevant for near lightcone correlators will be discussed.

Date : May 17, 2022, 16:00 CEST Robert Myers (Perimeter Institute) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Complexity = Anything2 Abstract: Motivated by holographic complexity, we examine a new class of gravitational observables in asymptotically AdS space associated with codimension-one slices or with codimension-zero regions. We argue that any of these observables is an equally viable candidate as the […]

Date : May 3, 2022, 16:00 CEST Daniel Grumiller (Vienna University of Technology) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Flat space holography in lower dimensions Abstract: I review progress on flat space holography in three and two bulk dimensions, focusing on the relation to the complex SYK model and a “twisted warped” geometric action analogous to the Schwarzian.

Date : March 29, 2022, 16:00 CEST Hong Liu (MIT) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Emergent times in holography Abstract: In holographic duality an eternal AdS black hole is described by two copies of the boundary CFT in the thermal field double state. We provide explicit constructions in the boundary theory of Kruskal-like time evolutions which can take […]

Date : March 22, 2022, 16:00 CET Derek Teaney (Stony Brook University) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Soft pions, hydrodynamics, and the chiral critical point Abstract:  I will first discuss chiral symmetry breaking and the evidence for the O(4) critical point from lattice QCD.  With this motivation, I will then describe the appropriate hydrodynamic theory well below the […]

Date : March 15, 2022, 16:00 CET Carlos Hoyos (University of Oviedo) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Space-dependent symmetries and fractons Abstract:  Fractons are excitations with unusual properties like restricted mobility in some or all spatial directions. Their presence is linked to symmetry transformations depending on the spatial coordinates, like dipole or subsystem symmetries, which sometimes are emergent […]

Date : March 8, 2022, 16:00 CET Jan de Boer (University of Amsterdam) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: Quantum gravity and statistical physics Abstract:  Several puzzles and issues in quantum gravity are related to the question of what type of high-energy information is actually available to low-energy observers. In this talk I will try to argue that the […]

Date : March 1, 2022, 16:00 CET Niko Jokela (University of Helsinki) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: NICER view on holographic QCD Abstract:  Holographic techniques are particularly fit to analyzing matter at extreme conditions where QCD matter is strongly coupled. Combining predictions of the holographic model with state-of-the-art effective field theory models of nuclear matter, I construct a […]

Date : February 22 2022, 16:00 CET Elena Caceres (University of Texas at Austin) Link: https://zoom.us/j/98260147834?pwd=VW5BQStqUGUrUFFzWG1jL2tuWXJoZz09 Title: On the sparse SYK model