Lecture - Quantum Gravity, PHYS 644
Aldo Riello - Perimeter Institute for Theoretical Physics
61 - 72 of 17726 Results
Format results
-
Superradiant interactions of cosmic relics
Asimina Arvanitaki - Perimeter Institute for Theoretical Physics
Hierarchical Merger of Primordial Black Holes and Gravitational Waves
Encieh Erfani - Perimeter Institute for Theoretical Physics
The Resonant Gravitational instability from Baryon-Dark Matter relative Streaming
Mohamad Shalaby - Perimeter Institute for Theoretical Physics
Core Collapse Beyond the Fluid Approximation
James Gurian - Perimeter Institute for Theoretical Physics
Measuring cosmic bulk flow with kinetic Sunyaev-Zel'dovich (kSZ) velocity reconstruction
Suroor Seher Gandhi - Perimeter Institute for Theoretical Physics
An Introduction to Deformation Quantization
James Munday - Dalhousie University
Cosmological Insights from Causal Set Theory
Yasaman Kouchekzadeh Yazdi - Dublin Institute For Advanced Studies
Lecture - Quantum Fields & Strings, PHYS 77
Pedro Vieira - Perimeter Institute for Theoretical Physics
-
-
Superradiant interactions of cosmic relics
Asimina Arvanitaki - Perimeter Institute for Theoretical Physics
Cosmic relics such as the cosmic neutrino background (CνB) are among the most compelling predictions of modern cosmology, yet they remain undetected because their interactions with ordinary matter are extraordinarily weak — a 10-cm detector would expect far less than one event over the age of the… -
Is Love positive?
Alessandro Longo - APC
The tidal deformability of compact objects, parameterized by their Love numbers, provides a crucial window into their internal structure and fundamental physics. In this talk, I will demonstrate that foundational principles impose strict constraints on these observables. Specifically, by exploiting… -
Hierarchical Merger of Primordial Black Holes and Gravitational Waves
Encieh Erfani - Perimeter Institute for Theoretical Physics
In this talk, I will present our study of primordial black holes (PBHs) as a candidate for dark matter in the dense cores of dwarf galaxies. Assuming an initially monochromatic PBH population, we investigate their dynamical evolution and hierarchical merger history within a Hubble time. We show that… 
Probing Spacetime through Relativistic Quantum Information
Modern physics is built upon three fundamental frameworks: quantum theory, general relativity, and information theory. In this talk, I will first introduce the field of relativistic quantum information, an operational framework that studies quantum information in relativistic settings by bringing…-
Dark Matter Long Range Forces
In this talk we describe how future cosmological observation can constrain long-range dark matter forces scenarios in which the new interaction acts only in the Dark Sector. We briefly summarize the effect of the new force on the CMB and galaxy surveys, and how these observables constrain long range… -
The Resonant Gravitational instability from Baryon-Dark Matter relative Streaming
Mohamad Shalaby - Perimeter Institute for Theoretical Physics
The Jeans instability is a fundamental mechanism that explains how the initially almost uniform density of the early universe gave rise to collapsed structures—from molecular clouds and stars to galaxies and clusters. It also plays a key role in interpreting astrophysical probes such as the Lyman… -
Core Collapse Beyond the Fluid Approximation
James Gurian - Perimeter Institute for Theoretical Physics
I will discuss a new kinetic code for simulating core collapse in self-interacting dark matter halos, KiSS-SIDM. Using this code, we find that in the intermediate stages of the collapse the dark matter is not well-described as an ideal fluid. A more general point is that studying structure formation… -
Measuring cosmic bulk flow with kinetic Sunyaev-Zel'dovich (kSZ) velocity reconstruction
Suroor Seher Gandhi - Perimeter Institute for Theoretical Physics
The average large-scale velocity of matter in the universe, known as **bulk flow**, is a fundamental test of the Cosmological Principle. Traditionally, this has been measured only out to $R\lesssim 100$ megaparsecs (Mpc). We present an application of **kinetic Sunyaev-Zel'dovich (kSZ) velocity… -
An Introduction to Deformation Quantization
James Munday - Dalhousie University
Deformation quantization is a mathematical approach to understanding the quantization of classical mechanical systems. This talk will outline the procedure of deformation quantization and how it connects to the mathematical study of deformation theory. Time permitting, we will discuss some examples… -
Cosmological Insights from Causal Set Theory
Yasaman Kouchekzadeh Yazdi - Dublin Institute For Advanced Studies
I will discuss some ideas from causal set theory that have bearing on open questions in cosmology. My primary focus will be dark energy and the early universe. I will also speculate about new ways these ideas may fit together. -
Lecture - Quantum Fields & Strings, PHYS 77
Pedro Vieira - Perimeter Institute for Theoretical Physics