Quantum field theory was originally developed as the extension of quantum mechanics needed to accommodate the principles of special relativity. Today quantum field theory is the modern paradigm with which we understand particle physics, condensed matter systems, and many aspects of early universe cosmology, and it is used to describe the interactions of elementary particles, the dynamics of many body systems and critical phenomena, all with exquisite accuracy. Currently, Perimeter researchers are producing world-leading advances in the study of integrability and scattering amplitudes in quantum field theories. String theory is a theoretical framework which was proposed to produce a unified description of all particles and forces in nature, including gravity. It is based on the idea that at very short distances, all particles should in fact be seen to be extended one-dimensional objects, i.e., ‘strings.’ Modern string theory has grown to be a broad and varied field of research with strong connections to quantum gravity, particle physics and cosmology, as well as mathematics. An exciting new framework known as ‘holography’ has emerged from string theory whereby quantum gravity is formulated in terms of quantum field theory in one less dimension. This symbiosis between quantum field theory and quantum gravity has been a focus of many Perimeter researchers. This has led to the development of exciting new methods to study the quantum dynamics of gauge theories and in the application of these techniques to new domains, such as nuclear physics and condensed matter physics
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University of Maryland, College Park
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Entropic Focussing
University of Cambridge -
Area terms in entanglement entropy
Bariloche Atomic Centre -
Order parameter for chaos
Perimeter Institute for Theoretical Physics -
Spread of entanglement and causality
Massachusetts Institute of Technology (MIT) -
The Holographic Entropy Cone
University of California, Berkeley -
Holographic quantum error-correcting codes: Toy models for the bulk/boundary correspondence
California Institute of Technology -
Entanglement renormalization for quantum fields
Ghent University -
Tensor Network Renormalization and the MERA
Georgia Institute of Technology -
Do black holes create polyamory
University College London -
Geometric Constructs in AdS/CFT
University of California, Davis -
Universal holographic description of CFT entanglement entropy
University of Illinois Urbana-Champaign