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PHYS 781 - Lecture 14

Niayesh Afshordi University of Waterloo
November 04, 2014

PIRSA:14110049
Astrophysics

General Relativity & Quantum Cosmology

General Relativity & Quantum Cosmology
Topological Model for Domain Walls in (Super-)Yang-Mills Theories

Markus Dierigl Ludwig-Maximilians-Universitiät München (LMU)
November 04, 2014

PIRSA:14110047
High Energy Physics
How Quantum are the Cosmological Correlations?

Eugene Lim King's College London
November 04, 2014

PIRSA:14110003
Astrophysics
Experiments Big and Small

Savas Dimopoulos Stanford University

October 31, 2014

PIRSA:14100116
Higgs Physics with the ATLAS experiment

Pierre Savard University of Toronto
October 31, 2014

PIRSA:14100120
High Energy Physics
PHYS 781 - Lecture 13

Niayesh Afshordi University of Waterloo

October 31, 2014

PIRSA:14100065
Complex Loop Quantum Cosmology

Jibril BEN ACHOUR Arnold Sommerfeld Center (Germany) / ENS de Lyon (France)
October 30, 2014

PIRSA:14100047
General Relativity & Quantum Cosmology
PHYS 781 - Lecture 12

Niayesh Afshordi University of Waterloo

October 30, 2014

PIRSA:14100060
Smooth Wilson loops from the continuum limit of null polygons

Jonathan Toledo BMO Financial Group
October 30, 2014

PIRSA:14100118
High Energy Physics
Entanglement Entropy and the Area Law - Lecture 4

Rafael Sorkin Perimeter Institute for Theoretical Physics

October 28, 2014

PIRSA:14100072
Decoherence tests without quantum theory

Corsin Pfister
October 28, 2014

PIRSA:14100121
Quantum Physics
PHYS 781 - Lecture 11

Niayesh Afshordi University of Waterloo

October 28, 2014

PIRSA:14100055

PHYS 781 - Lecture 14

Niayesh Afshordi University of Waterloo
November 04, 2014

PIRSA:14110049
Astrophysics

General Relativity & Quantum Cosmology

General Relativity & Quantum Cosmology
Topological Model for Domain Walls in (Super-)Yang-Mills Theories

Markus Dierigl Ludwig-Maximilians-Universitiät München (LMU)
November 04, 2014

PIRSA:14110047
High Energy Physics
We discuss a topological description of the confining phase of (Super-)Yang-Mills theories with gauge group SU(N) which encodes all the Aharonov-Bohm phases of configurations of non-local operators. This topological action shows an additional 1-form gauge symmetry. After the introduction of domain walls, this 1-form gauge symmetry demands the appearance of new fields on the worldvolume of the wall. These new fields have a topological Chern-Simons action at level N, also suggested by string theory constructions.
How Quantum are the Cosmological Correlations?

Eugene Lim King's College London
November 04, 2014

PIRSA:14110003
Astrophysics
Experiments Big and Small

Savas Dimopoulos Stanford University

October 31, 2014

PIRSA:14100116

I will talk about the implications of the current LHC results and the Higgs discovery on the principle of Naturalness, that has been guiding particle physics for the last forty years. Then I will discuss the role that low energy experiments can play for the future of particle physics.
Higgs Physics with the ATLAS experiment

Pierre Savard University of Toronto
October 31, 2014

PIRSA:14100120
High Energy Physics
An overview of the latest Higgs physics results from the ATLAS collaboration will be presented. Next year, the Large Hadron collider will restart at a higher collision energy after a 2-year shutdown. The Higgs physics programme for this next data taking period will be discussed.
PHYS 781 - Lecture 13

Niayesh Afshordi University of Waterloo

October 31, 2014

PIRSA:14100065
Complex Loop Quantum Cosmology

Jibril BEN ACHOUR Arnold Sommerfeld Center (Germany) / ENS de Lyon (France)
October 30, 2014

PIRSA:14100047
General Relativity & Quantum Cosmology
We study in the context of loop quantum cosmology the effect of the analytic continuation that sends the Barbero-Immirzi parameter to a purely imaginary value. We show that this construction leads once again to a bouncing scenario, in which however the contracting and expanding phases on each side of the bounce are not symmetrical. Moreover, the minimal volume reached by the universe and the critical matter density become naturally independent of the Barbero-Immirzi parameter. This analytic continuation was first proposed in the context of black hole entropy calculation, and constitutes a proposal for defining a theory of self-dual quantum gravity in terms of the complex Ashtekar connection and for solving the so-called reality conditions. We expect that the systematic investigation of this analytic continuation in various setups will eventually lead to new insights on the status of the quantum states of complex Ashtekar gravity.
PHYS 781 - Lecture 12

Niayesh Afshordi University of Waterloo

October 30, 2014

PIRSA:14100060
Smooth Wilson loops from the continuum limit of null polygons

Jonathan Toledo BMO Financial Group
October 30, 2014

PIRSA:14100118
High Energy Physics
We present integral equations for the area of minimal surfaces in AdS_3 ending on generic smooth boundary contours. The equations are derived from the continuum limit of the AMSV result for null polygonal boundary contours. Remarkably these continuum equations admit exact solutions in some special cases. In particular we describe a novel exact solution which interpolates between the circle and 4-cusp solutions.
Entanglement Entropy and the Area Law - Lecture 4

Rafael Sorkin Perimeter Institute for Theoretical Physics

October 28, 2014

PIRSA:14100072
Decoherence tests without quantum theory

Corsin Pfister
October 28, 2014

PIRSA:14100121
Quantum Physics
In quantum theory, people have thought for some while about the problem of how to estimate the decoherence of a quantum channel from classical data gained in measurements. Applications of these developments include security criteria for quantum key distribution and tests of decoherence models. In this talk, I will present some ideas for how to interpret the same classical data to make statements about decoherence in cases where nature is not necessarily described by quantum theory. This is work in progress in collaboration with many people.
PHYS 781 - Lecture 11

Niayesh Afshordi University of Waterloo

October 28, 2014

PIRSA:14100055

Title	Date	Collection	Type	Info
PHYS 781 - Lecture 14	2014‑11‑04	PHYS 781 - Fundamentals of Astrophysics	Course	View details
Topological Model for Domain Walls in (Super-)Yang-Mills Theories	2014‑11‑04	Quantum Fields and Strings	Scientific Series	View details
How Quantum are the Cosmological Correlations?	2014‑11‑04	Cosmology and Gravitation	Scientific Series	View details
Experiments Big and Small	2014‑10‑31	Colloquium	Scientific Series	View details
Higgs Physics with the ATLAS experiment	2014‑10‑31	Particle Physics	Scientific Series	View details
PHYS 781 - Lecture 13	2014‑10‑31	PHYS 781 - Fundamentals of Astrophysics	Course	View details
Complex Loop Quantum Cosmology	2014‑10‑30	Quantum Gravity	Scientific Series	View details
PHYS 781 - Lecture 12	2014‑10‑30	PHYS 781 - Fundamentals of Astrophysics	Course	View details
Smooth Wilson loops from the continuum limit of null polygons	2014‑10‑30	Quantum Fields and Strings	Scientific Series	View details
Entanglement Entropy and the Area Law - Lecture 4	2014‑10‑28	Entanglement Entropy and the Area Law	Course	View details
Decoherence tests without quantum theory	2014‑10‑28	Quantum Foundations	Scientific Series	View details
PHYS 781 - Lecture 11	2014‑10‑28	PHYS 781 - Fundamentals of Astrophysics	Course	View details

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Format results

PHYS 781 - Lecture 14

Topological Model for Domain Walls in (Super-)Yang-Mills Theories

How Quantum are the Cosmological Correlations?

Experiments Big and Small

Higgs Physics with the ATLAS experiment

PHYS 781 - Lecture 13

Complex Loop Quantum Cosmology

PHYS 781 - Lecture 12

Smooth Wilson loops from the continuum limit of null polygons

Entanglement Entropy and the Area Law - Lecture 4

Decoherence tests without quantum theory

PHYS 781 - Lecture 11

PHYS 781 - Lecture 14

Topological Model for Domain Walls in (Super-)Yang-Mills Theories

How Quantum are the Cosmological Correlations?

Experiments Big and Small

Higgs Physics with the ATLAS experiment

PHYS 781 - Lecture 13

Complex Loop Quantum Cosmology

PHYS 781 - Lecture 12

Smooth Wilson loops from the continuum limit of null polygons

Entanglement Entropy and the Area Law - Lecture 4

Decoherence tests without quantum theory

PHYS 781 - Lecture 11