Talks

9373 - 9384 of 18375 Results

14/15 PSI - Quantum Field Theory I (A) - Lecture 6

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 14, 2014

PIRSA:14100035
QQ-CHARACTERS, GAUGE THEORY and non-perturbative Dyson-Schwinger equations

Nikita Nekrasov Stony Brook University

October 14, 2014

PIRSA:14100066
(Non)perturbative QCD and Jet Substructure

Jesse Thaler Massachusetts Institute of Technology (MIT)

October 14, 2014

PIRSA:14100046
Gravitational lensing of the CMB

Gilbert Holder University of Illinois Urbana-Champaign

October 14, 2014

PIRSA:14100084

Astrophysics
14/15 PSI - Statistical Mechanics - Lecture 6

Anton Burkov University of Waterloo

October 14, 2014

PIRSA:14100092
14/15 PSI - Quantum Field Theory I (A) - Lecture 5

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 10, 2014

PIRSA:14100031
14/15 PSI - Conformal Field Theory - Lecture 5

Jaume Gomis Perimeter Institute for Theoretical Physics

October 10, 2014

PIRSA:14100012
14/15 PSI - Statistical Mechanics - Lecture 5

Anton Burkov University of Waterloo

October 10, 2014

PIRSA:14100088
14/15 PSI - Quantum Field Theory I (A) - Lecture 4

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 09, 2014

PIRSA:14100030
14/15 PSI - Conformal Field Theory - Lecture 4

Jaume Gomis Perimeter Institute for Theoretical Physics

October 09, 2014

PIRSA:14100011
14/15 PSI - Statistical Mechanics - Lecture 4

Anton Burkov University of Waterloo

October 09, 2014

PIRSA:14100087
14/15 PSI - Quantum Field Theory I (A) - Lecture 3

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 08, 2014

PIRSA:14100029

14/15 PSI - Quantum Field Theory I (A) - Lecture 6

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 14, 2014

PIRSA:14100035
QQ-CHARACTERS, GAUGE THEORY and non-perturbative Dyson-Schwinger equations

Nikita Nekrasov Stony Brook University

October 14, 2014

PIRSA:14100066

We report on recent advances in understanding the non-local symmetries of quantum field theory, notably gauge theory. The symmetries relate topologically distinct sectors of the field space. We study these symmetries in some detail in the context of the BPS/CFT correspondence. We also introduce a notion of qq-characters, which generalize the q-characters of quantum affine algebras, introduced by E. Frenkel and N. Reshetikhin, and conjecturally are related to the (q, t)-characters introduced by H. Nakajima. We show that the qq-characters can be used to derive an infinite set of Dyson-Schwinger type relations which imply that the supersymmetric partition functions of four dimensional gauge theory (with surface operators) obey BPZ and KZB-type equations.
(Non)perturbative QCD and Jet Substructure

Jesse Thaler Massachusetts Institute of Technology (MIT)

October 14, 2014

PIRSA:14100046

With the remarkable performance of the ATLAS and CMS detectors, jets at the LHC can now be characterized not just by their overall direction and energy but also by their substructure. At the same time, there has been substantial progress in predicting the properties of jets from first principles. In this talk, I highlight the ways that theoretical studies of jet substructure have enhanced our understanding of QCD, including examples that blur the boundary between perturbative and nonperturbative physics.
Gravitational lensing of the CMB

Gilbert Holder University of Illinois Urbana-Champaign

October 14, 2014

PIRSA:14100084

Astrophysics

Gravitational lensing of the cosmic microwave background is emerging as a useful cosmological tool. Recent measurements have been made by several experiments (including the South Pole Telescope, which will be featured), with rapidly improving precision. These measurements can be used for many purposes, including studying the connection between dark matter and galaxies on large scales, measuring the clustering of matter at z~3, and improving the precision of possible measurements of gravitational radiation from inflation.
14/15 PSI - Statistical Mechanics - Lecture 6

Anton Burkov University of Waterloo

October 14, 2014

PIRSA:14100092
14/15 PSI - Quantum Field Theory I (A) - Lecture 5

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 10, 2014

PIRSA:14100031
14/15 PSI - Conformal Field Theory - Lecture 5

Jaume Gomis Perimeter Institute for Theoretical Physics

October 10, 2014

PIRSA:14100012
14/15 PSI - Statistical Mechanics - Lecture 5

Anton Burkov University of Waterloo

October 10, 2014

PIRSA:14100088
14/15 PSI - Quantum Field Theory I (A) - Lecture 4

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 09, 2014

PIRSA:14100030
14/15 PSI - Conformal Field Theory - Lecture 4

Jaume Gomis Perimeter Institute for Theoretical Physics

October 09, 2014

PIRSA:14100011
14/15 PSI - Statistical Mechanics - Lecture 4

Anton Burkov University of Waterloo

October 09, 2014

PIRSA:14100087
14/15 PSI - Quantum Field Theory I (A) - Lecture 3

Tibra Ali Perimeter Institute for Theoretical Physics

Dan Wohns Perimeter Institute for Theoretical Physics

October 08, 2014

PIRSA:14100029

Title	Date	Collection	Type	Info
14/15 PSI - Quantum Field Theory I (A) - Lecture 6	2014‑10‑14	14/15 PSI - Quantum Field Theory	Course	View details
QQ-CHARACTERS, GAUGE THEORY and non-perturbative Dyson-Schwinger equations	2014‑10‑14	Quantum Fields and Strings	Scientific Series	View details
(Non)perturbative QCD and Jet Substructure	2014‑10‑14	Particle Physics	Scientific Series	View details
Gravitational lensing of the CMB	2014‑10‑14	Cosmology and Gravitation	Scientific Series	View details
14/15 PSI - Statistical Mechanics - Lecture 6	2014‑10‑14	14/15 PSI - Statistical Mechanics	Course	View details
14/15 PSI - Quantum Field Theory I (A) - Lecture 5	2014‑10‑10	14/15 PSI - Quantum Field Theory	Course	View details
14/15 PSI - Conformal Field Theory - Lecture 5	2014‑10‑10	14/15 PSI - Conformal Field Theory	Course	View details
14/15 PSI - Statistical Mechanics - Lecture 5	2014‑10‑10	14/15 PSI - Statistical Mechanics	Course	View details
14/15 PSI - Quantum Field Theory I (A) - Lecture 4	2014‑10‑09		Course	View details
14/15 PSI - Conformal Field Theory - Lecture 4	2014‑10‑09	14/15 PSI - Conformal Field Theory	Course	View details
14/15 PSI - Statistical Mechanics - Lecture 4	2014‑10‑09	14/15 PSI - Statistical Mechanics	Course	View details
14/15 PSI - Quantum Field Theory I (A) - Lecture 3	2014‑10‑08	14/15 PSI - Quantum Field Theory	Course	View details

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Format results

14/15 PSI - Quantum Field Theory I (A) - Lecture 6

QQ-CHARACTERS, GAUGE THEORY and non-perturbative Dyson-Schwinger equations

(Non)perturbative QCD and Jet Substructure

Gravitational lensing of the CMB

14/15 PSI - Statistical Mechanics - Lecture 6

14/15 PSI - Quantum Field Theory I (A) - Lecture 5

14/15 PSI - Conformal Field Theory - Lecture 5

14/15 PSI - Statistical Mechanics - Lecture 5

14/15 PSI - Quantum Field Theory I (A) - Lecture 4

14/15 PSI - Conformal Field Theory - Lecture 4

14/15 PSI - Statistical Mechanics - Lecture 4

14/15 PSI - Quantum Field Theory I (A) - Lecture 3

14/15 PSI - Quantum Field Theory I (A) - Lecture 6

QQ-CHARACTERS, GAUGE THEORY and non-perturbative Dyson-Schwinger equations

(Non)perturbative QCD and Jet Substructure

Gravitational lensing of the CMB

14/15 PSI - Statistical Mechanics - Lecture 6

14/15 PSI - Quantum Field Theory I (A) - Lecture 5

14/15 PSI - Conformal Field Theory - Lecture 5

14/15 PSI - Statistical Mechanics - Lecture 5

14/15 PSI - Quantum Field Theory I (A) - Lecture 4

14/15 PSI - Conformal Field Theory - Lecture 4

14/15 PSI - Statistical Mechanics - Lecture 4

14/15 PSI - Quantum Field Theory I (A) - Lecture 3