Archive of IAS Monday High Energy Theory Seminars

Dec
04
2023

IAS High Energy Theory Seminar

The Black Hole/String Transition in anti de Sitter Space
Erez Urbach
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

Abstract: String stars, or Horowitz-Polchinski solutions, are string theory saddles with normalizable condensates of thermal-winding strings. In the past, string stars were offered as a possible description of stringy (Euclidean) black holes in...

Nov
20
2023

IAS High Energy Theory Seminar

The M-theory Three-Form and ADE Gauge Symmetry
Martijn Wijnholt
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

Abstract: M- and F-theory compactifications with ADE singularities give rise to non-abelian ADE gauge symmetries. The physical explanation for this phenomenon involves M2-branes wrapped on vanishing cycles. We consider an alternative approach which...

Oct
30
2023

IAS High Energy Theory Seminar

Refined Instanton Analysis for Asymptotically Free QFTs and Mass Gap
Mithat Ünsal
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

Abstract: Instantons are an important source of nonperturbative effects in quantum field theories, but their role in asymptotically free theories has not been well understood. In this talk, we will present a new approach to instanton analysis in the...

Oct
16
2023

IAS High Energy Theory Seminar

A New Spin on Long-Range Interactions: Continuous Spin Particles and Predictions for their Interactions
Natalia Toro
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

Abstract: Kinematically, massless particles in Lorentz-invariant theories are classified by a dimensionful "spin scale"ρ  (2nd Casimir invariant) that characterizes helicity states' mixing under little group transformations.  However, dynamics for...

Sep
25
2023

IAS High Energy Theory Seminar

Non-Linear Quantum Mechanics
David E. Kaplan
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

Abstract: We add non-linear and state-dependent terms to the Hamiltonian of quantum field theory. The resulting low-energy theory, non-linear quantum mechanics, is causal, preserves probability and permits a consistent description of the process of...

Apr
24
2023

IAS High Energy Theory Seminar

Toward Random Tensor Networks and Holographic Codes in CFT
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

The Institute for Advanced Study requires that all adult visitors, collaborators, conference and on-campus seminar attendees and outside vendors coming to the Institute are required to have completed a COVID-19 vaccination and booster in order to...

Apr
10
2023

High Energy Theory Seminar

Higher Symmetry in Particle Physics
2:30pm|Bloomberg Lecture Hall (IAS) & Zoom

The Institute for Advanced Study requires that all adult visitors, collaborators, conference and on-campus seminar attendees and outside vendors coming to the Institute are required to have completed a COVID-19 vaccination and booster in order to...