[NTU-NCTS String Seminar] Gravitational positivity bounds: implications for the swampland program

  • Event Date: 2023-06-09
  • High energy theory
  • Speaker: Dr. Junsei Tokuda (IBS)  /  Host: Profs. Yu-tin Huang & Pei-Ming Ho (NTU)
    Place: Rm. 815, Dept. of Physics, NTU

Title: [NTU-NCTS String Seminar] Gravitational positivity bounds: implications for the swampland program
Speaker: Dr. Junsei Tokuda (IBS)
Time: June. 9, 2023 (Fri.) 14:30-15:30
Venue: Rm. 815, Dept. of Physics, NTU

Abstract:
We will discuss recent efforts to describe tunneling phenomena through a fully real-time formalism using the mathematics of Picard-Lefschetz theory. By analytically continuing the action into the complex domain, the real-time Feynman path integral is well-defined and tunneling phenomena can be identified with complex solutions to the classical equations of motion. By investigating the symmetric Pöschl-Teller potential, we present a simple example with minimal conceptual overhead to explain the key ideas of this framework.

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