In a curved spacetime the definition of particles depends on the observer's frame of reference.

The majority of known hadrons in the low-energy QCD spectrum are resonances observed in multi-particle scattering processes.

Continuous spin particles (CSPs) arise naturally in the classification of unitarity representations of the Poincaré group but have long been dismissed because of their unintuitive nature.

In this (hopefully) pedagogical talk I explain why it is useful to contemplate extra dimensions of space and how it can change the way we think about the cosmological constant problem.

Terminal velocity reached by bubble walls in cosmological first-order phase transitions is an important parameter determining both primordial gravitational wave spectrum and the production of baryon asymmetry in models of electroweak baryogenesis.

For over two decades the DAMA/LIBRA experiment has reported an annual modulation in the low-energy region consistent with the expectation from dark matter (DM) in the galactic halo due to Earth's motion around the Sun.

Many SUSY CFTs have a continuous space of vacua known as a moduli space. Understanding how moduli spaces manifest in CFT data is crucial for classifying and constraining SUSY CFTs yet remains an open problem.

The notion of global symmetry in quantum field theory has been generalized in many interesting directions including p-form symmetries higher-form symmetries and non-invertible symmetries.

We study correlators of insertions along 1/2 BPS line defects in the holographic dual to type IIB string theory in AdS3×S3×T4 with mixed Ramond-Ramond and Neveu Schwarz-Neveu Schwarz three-form flux.

Understanding the mechanism of thermalization in gauge theories is one of the challenging problems of contemporary research.