Iberian Strings 2020

Session

Plenary

15 Jan 2020, 09:00

Santiago de Compostela

1. Bootstrapping Quantum Field Theories

João Penedones (EPFL)

15/01/2020, 09:00

I will review the recent revival of the S-matrix Bootstrap approach to QFT. I will also present a new method that relies on unitarity formulated as positive semi-definiteness of the matrix of inner products between asymptotic states (in and out) and states created by the action of local operators on the vacuum. The corresponding matrix elements involve scattering amplitudes, form factors and...

7. The Swampland program in String Theory

Irene Valenzuela

15/01/2020, 15:00

In this talk I will review the most important Swampland Conjectures and their string theoretical motivation. This includes the Weak Gravity and the Distance Conjectures among others. I will discuss the evidence that we have gathered in the past in support of these conjectures, as well as recent developments based on the asymptotic structure of moduli spaces of string compactifications. I will...

9. Holographic and composite axions

Elias Kiritsis

16/01/2020, 09:00

19. Operator Complexity beyond Scrambling

Jose Fernandez Barbon (Unknown)

17/01/2020, 09:00

I review aspects of quantum complexity and its holographic counterpart, applied to operator growth in chaotic systems. At time scales longer than the scrambling time, the size of the operator ceases to be a good characterization of its complexity growth. I will show that a new notion of operator complexity, called Krylov-complexity, satisfies the expected linear growth at long times as a...