Talks

10057 - 10068 of 16754 Results

13/14 PSI - Relativity - Lecture 6

Neil Turok University of Edinburgh

September 16, 2013

PIRSA:13090018
13/14 PSI - Quantum Theory - Lecture 5

Joseph Emerson Institute for Quantum Computing (IQC)

September 13, 2013

PIRSA:13090034
Edge states at domain wall junctions in supersymmetric gauge theory

Davide Gaiotto Perimeter Institute for Theoretical Physics

September 13, 2013

PIRSA:13090074

Condensed Matter
13/14 PSI - Relativity - Lecture 5

Neil Turok University of Edinburgh

September 13, 2013

PIRSA:13090015
Quantum States are Consistent Probability Distributions

Nadish de Silva University of Oxford

September 12, 2013

PIRSA:13090070

Quantum Foundations
Holography without Strings - Joint Quantum Gravity and String Theory Seminar

Donald Marolf University of California, Santa Barbara

September 12, 2013

PIRSA:13090060

Quantum Gravity
13/14 PSI - Quantum Theory - Lecture 4

Joseph Emerson Institute for Quantum Computing (IQC)

September 12, 2013

PIRSA:13090033
13/14 PSI - Relativity - Lecture 4b

Neil Turok University of Edinburgh

September 12, 2013

PIRSA:13090075
13/14 PSI - Relativity - Lecture 4

Neil Turok University of Edinburgh

September 12, 2013

PIRSA:13090014
The Era of Three Generations: Possible hints from neutrinos in elucidating the matter/antimatter asymmetry of the Universe

September 11, 2013

PIRSA:13090065

Particle Physics
13/14 PSI - Quantum Theory - Lecture 3

Joseph Emerson Institute for Quantum Computing (IQC)

September 11, 2013

PIRSA:13090032
13/14 PSI - Relativity - Lecture 3

Neil Turok University of Edinburgh

September 11, 2013

PIRSA:13090013

13/14 PSI - Relativity - Lecture 6

Neil Turok University of Edinburgh

September 16, 2013

PIRSA:13090018
13/14 PSI - Quantum Theory - Lecture 5

Joseph Emerson Institute for Quantum Computing (IQC)

September 13, 2013

PIRSA:13090034
Edge states at domain wall junctions in supersymmetric gauge theory

Davide Gaiotto Perimeter Institute for Theoretical Physics

September 13, 2013

PIRSA:13090074

Condensed Matter
13/14 PSI - Relativity - Lecture 5

Neil Turok University of Edinburgh

September 13, 2013

PIRSA:13090015
Quantum States are Consistent Probability Distributions

Nadish de Silva University of Oxford

September 12, 2013

PIRSA:13090070

Quantum Foundations

We describe a notion of state for a quantum system which is given in terms of a collection of empirically realizable probability distributions and is formally analogous to the familiar concept of state from classical statistical mechanics. We first demonstrate the mathematical equivalence of this new notion to the standard quantum notion of density matrix. We identify the simple logical consistency condition (a generalization of the familiar no-signalling condition) which a collection of distributions must obey in order to reconstruct the unique quantum state from which they arise. In this way, we achieve a formal expression of the common intuition of a quantum state as being classical distributions on compatible observables.
Holography without Strings - Joint Quantum Gravity and String Theory Seminar

Donald Marolf University of California, Santa Barbara

September 12, 2013

PIRSA:13090060

Quantum Gravity

A defining feature of holographic dualities is that, along with the bulk equations of motion, boundary correlators at any given time t determine those of observables deep in the bulk. We argue that this property emerges from the bulk gravitational Gauss law together with bulk quantum entanglement as embodied in the Reeh-Schlieder theorem. Stringy bulk degrees of freedom are not required and play little role even when they exist. As an example we study a toy model whose matter sector is a free scalar field. The energy density (\rho) sources what we call a pseudo-Newtonian potential (\Phi) through Poisson's equation on each constant time surface, but there is no back-reaction on the matter. We show the Hamiltonian to be essentially self-adjoint on the domain generated from the vacuum by acting with boundary observables localized in an arbitrarily small neighborhood of the chosen time t. Since the Gauss law represents the Hamiltonian as a boundary term, the model is holographic in the sense stated above.
13/14 PSI - Quantum Theory - Lecture 4

Joseph Emerson Institute for Quantum Computing (IQC)

September 12, 2013

PIRSA:13090033
13/14 PSI - Relativity - Lecture 4b

Neil Turok University of Edinburgh

September 12, 2013

PIRSA:13090075
13/14 PSI - Relativity - Lecture 4

Neil Turok University of Edinburgh

September 12, 2013

PIRSA:13090014
The Era of Three Generations: Possible hints from neutrinos in elucidating the matter/antimatter asymmetry of the Universe

September 11, 2013

PIRSA:13090065

Particle Physics

Despite being one of the most abundant constituents of the Universe and more than a half a century of study, some of the most fundamental properties of the neutrino have only been recently uncovered, and others still remain unresolved. I will discuss important developments in the phenomenon of neutrino oscillations, a transmutation process that allows neutrinos to change between three types as they propagate in time. In particular, recent discoveries have opened up the possibility of CP violation in neutrino oscillations, asymmetries in the behavior of neutrinos and their anti-matter counterparts. CP violation, along with other unresolved properties of the neutrino, may play a central role in how the universe came to a matter-dominated state. I will also discuss a new generation of experiments that may allow us to establish whether CP violation does indeed occur in neutrino oscillations.
13/14 PSI - Quantum Theory - Lecture 3

Joseph Emerson Institute for Quantum Computing (IQC)

September 11, 2013

PIRSA:13090032
13/14 PSI - Relativity - Lecture 3

Neil Turok University of Edinburgh

September 11, 2013

PIRSA:13090013

Title	Date	Collection	Type	Info
13/14 PSI - Relativity - Lecture 6	2013‑09‑16	13/14 PSI - Relativity	Course	View details
13/14 PSI - Quantum Theory - Lecture 5	2013‑09‑13	13/14 PSI - Quantum Theory	Course	View details
Edge states at domain wall junctions in supersymmetric gauge theory	2013‑09‑13	Quantum Matter	Scientific Series	View details
13/14 PSI - Relativity - Lecture 5	2013‑09‑13	13/14 PSI - Relativity	Course	View details
Quantum States are Consistent Probability Distributions	2013‑09‑12	Quantum Foundations	Scientific Series	View details
Holography without Strings - Joint Quantum Gravity and String Theory Seminar	2013‑09‑12	Quantum Gravity	Scientific Series	View details
13/14 PSI - Quantum Theory - Lecture 4	2013‑09‑12	13/14 PSI - Quantum Theory	Course	View details
13/14 PSI - Relativity - Lecture 4b	2013‑09‑12	13/14 PSI - Relativity	Course	View details
13/14 PSI - Relativity - Lecture 4	2013‑09‑12	13/14 PSI - Relativity	Course	View details
The Era of Three Generations: Possible hints from neutrinos in elucidating the matter/antimatter asymmetry of the Universe	2013‑09‑11	Colloquium	Scientific Series	View details
13/14 PSI - Quantum Theory - Lecture 3	2013‑09‑11	13/14 PSI - Quantum Theory	Course	View details
13/14 PSI - Relativity - Lecture 3	2013‑09‑11	13/14 PSI - Relativity	Course	View details

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