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13/14 PSI - Explorations in String Theory - Lecture 1

Andrei Starinets University of Oxford

March 17, 2014 PIRSA:14030059
Seeing is Believing: Direct Observation of a General Quantum State

Jeff Lundeen University of Ottawa
March 17, 2014 PIRSA:14030110
Quantum Foundations
13/14 PSI - Explorations in Quantum Information - Lecture 2

David Cory Institute for Quantum Computing (IQC)

March 18, 2014 PIRSA:14030030
13/14 PSI - Explorations in Condensed Matter - Lecture 2

Guifre Vidal Google

March 18, 2014 PIRSA:14040023
Semi Classical Quantization of Space Times with Event Horizons

Arundhati Dasgupta University of Lethbridge
December 07, 2004 PIRSA:04120005
Quantum Gravity
Inflation After Planck
March 18, 2014 PIRSA:14030116
Cosmology
13/14 PSI - Explorations in String Theory - Lecture 2

Andrei Starinets University of Oxford

March 18, 2014 PIRSA:14030060
Before the Bang

Raman Sundrum University of Maryland
March 18, 2014 PIRSA:14030113
Particle Physics
A histories perpective on bounding quantum correlations

Joe Henson BNP Paribas Asset Management London
March 18, 2014 PIRSA:14030111
Quantum Foundations
Introduction to Quantum Field Theory for Cosmology - Lecture 19

Achim Kempf University of Waterloo

March 18, 2014 PIRSA:14030001
13/14 PSI - Explorations in Quantum Information - Lecture 3

David Cory Institute for Quantum Computing (IQC)

March 19, 2014 PIRSA:14030031
13/14 PSI - Explorations in Condensed Matter - Lecture 3

Guifre Vidal Google

March 19, 2014 PIRSA:14040024

13/14 PSI - Explorations in String Theory - Lecture 1

Andrei Starinets University of Oxford

March 17, 2014 PIRSA:14030059
Seeing is Believing: Direct Observation of a General Quantum State

Jeff Lundeen University of Ottawa
March 17, 2014 PIRSA:14030110
Quantum Foundations
Central to quantum theory, the wavefunction is a complex distribution associated with a quantum system. Despite its fundamental role, it is typically introduced as an abstract element of the theory with no explicit definition. Rather, physicists come to a working understanding of it through its use to calculate measurement outcome probabilities through the Born Rule. Tomographic methods can reconstruct the wavefunction from measured probabilities. In contrast, I present a method to directly measure the wavefunction so that its real and imaginary components appear straight on our measurement apparatus. I will also present new work extending this concept to mixed quantum states. This extension directly measures a little-known proposal by Dirac for a classical analog to a quantum operator. Furthermore, it reveals that our direct measurement is a rigorous example of a quasi-probability phase-space (i.e. x,p) distribution that is closely related to the Q, P, and Wigner functions. Our direct measurement method gives the quantum state a plain and general meaning in terms of a specific set of simple operations in the lab.
13/14 PSI - Explorations in Quantum Information - Lecture 2

David Cory Institute for Quantum Computing (IQC)

March 18, 2014 PIRSA:14030030
13/14 PSI - Explorations in Condensed Matter - Lecture 2

Guifre Vidal Google

March 18, 2014 PIRSA:14040023
Semi Classical Quantization of Space Times with Event Horizons

Arundhati Dasgupta University of Lethbridge
December 07, 2004 PIRSA:04120005
Quantum Gravity
Inflation After Planck
March 18, 2014 PIRSA:14030116
Cosmology
The Planck satellite measurement of the cosmic microwave background has provided spectacular confirmation of the predictions of inflationary cosmology, putting inflation on a firm footing as the leading theory of the very early universe. I will discuss the implications of Planck for the simplest canonical single-field inflation models, which are favored by the data. Then I will discuss the most general question: How strong is the case that inflation is the "right" theory of the early universe?
13/14 PSI - Explorations in String Theory - Lecture 2

Andrei Starinets University of Oxford

March 18, 2014 PIRSA:14030060
Before the Bang

Raman Sundrum University of Maryland
March 18, 2014 PIRSA:14030113
Particle Physics
The simplest black hole solution in asymptotic AdS spacetime, the eternal 3-dimensional BTZ black hole, is studied from the viewpoint of AdS/CFT duality. We identify a class of non-local correlators on the CFT side that allow us to generalize the notion of quantum gravity "S-matrix" to scattering inside the horizon. Since the interior of the horizon is a cosmological spacetime with a big bang/crunch-like singularity, our construction can be interpreted as identifying generally coordinate invariant observables of quantum gravity in a simple cosmology. We show in a certain precise sense, that these holographic observables lie "before the big bang" in a region of spacetime containing closed timelike curves. A central tool in our analysis is the realization of BTZ as a quotient of 3-dimensional AdS.
A histories perpective on bounding quantum correlations

Joe Henson BNP Paribas Asset Management London
March 18, 2014 PIRSA:14030111
Quantum Foundations
There has recently been much interest in finding simple principles that explain the particular sets of experimental probabilities that are possible with quantum mechanics in Bell-type experiments. In the quantum gravity community, similar questions had been raised, about whether a certain generalisation of quantum mechanics allowed more than quantum mechanics in this regard. We now bring these two strands of work together to see what can be learned on both sides.
Introduction to Quantum Field Theory for Cosmology - Lecture 19

Achim Kempf University of Waterloo

March 18, 2014 PIRSA:14030001
13/14 PSI - Explorations in Quantum Information - Lecture 3

David Cory Institute for Quantum Computing (IQC)

March 19, 2014 PIRSA:14030031
13/14 PSI - Explorations in Condensed Matter - Lecture 3

Guifre Vidal Google

March 19, 2014 PIRSA:14040024

Title	Speaker(s)	Date	Collection	Type	Info	Relevance
13/14 PSI - Explorations in String Theory - Lecture 1	Andrei Starinets	2014‑03‑17	13/14 PSI - Explorations in String Theory	Course	View details	1
Seeing is Believing: Direct Observation of a General Quantum State	Jeff Lundeen	2014‑03‑17	Quantum Foundations	Scientific Series	View details	1
13/14 PSI - Explorations in Quantum Information - Lecture 2	David Cory	2014‑03‑18	13/14 PSI - Explorations in Quantum Information	Course	View details	1
13/14 PSI - Explorations in Condensed Matter - Lecture 2	Guifre Vidal	2014‑03‑18	13/14 PSI - Explorations in Condensed Matter	Course	View details	1
Semi Classical Quantization of Space Times with Event Horizons	Arundhati Dasgupta	2004‑12‑07	Quantum Gravity	Scientific Series	View details	1
Inflation After Planck		2014‑03‑18	Cosmology and Gravitation	Scientific Series	View details	1
13/14 PSI - Explorations in String Theory - Lecture 2	Andrei Starinets	2014‑03‑18	13/14 PSI - Explorations in String Theory	Course	View details	1
Before the Bang	Raman Sundrum	2014‑03‑18	Particle Physics	Scientific Series	View details	1
A histories perpective on bounding quantum correlations	Joe Henson	2014‑03‑18	Quantum Foundations	Scientific Series	View details	1
Introduction to Quantum Field Theory for Cosmology - Lecture 19	Achim Kempf	2014‑03‑18	Quantum Field Theory for Cosmology - 2014	Course	View details	1
13/14 PSI - Explorations in Quantum Information - Lecture 3	David Cory	2014‑03‑19	13/14 PSI - Explorations in Quantum Information	Course	View details	1
13/14 PSI - Explorations in Condensed Matter - Lecture 3	Guifre Vidal	2014‑03‑19	13/14 PSI - Explorations in Condensed Matter	Course	View details	1

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