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Searching for topological phases in transition metal oxide heterostructures

Ying Ran Boston College
January 31, 2013

PIRSA:13010113
Condensed Matter
12/13 PSI - Condensed Matter Review Lecture 4

Alioscia Hamma University of Naples Federico II
January 31, 2013

PIRSA:13010100
Condensed Matter
12/13 PSI - Quantum Gravity Review Lecture 4

Bianca Dittrich Perimeter Institute for Theoretical Physics
January 31, 2013

PIRSA:13010092
Quantum Gravity
12/13 PSI - Gravitational Physics Review Lecture 4

Ruth Gregory King's College London
January 31, 2013

PIRSA:13010096
Strong Gravity
Hidden Structure in Linguistics: The Organization of Sound Systems

Elan Dresher

January 30, 2013

PIRSA:13010017
12/13 PSI - Condensed Matter Review Lecture 3

Alioscia Hamma University of Naples Federico II
January 30, 2013

PIRSA:13010099
Condensed Matter
12/13 PSI - Quantum Gravity Review Lecture 3

Bianca Dittrich Perimeter Institute for Theoretical Physics
January 30, 2013

PIRSA:13010091
Quantum Gravity
12/13 PSI - Gravitational Physics Review Lecture 3

Ruth Gregory King's College London
January 30, 2013

PIRSA:13010095
Strong Gravity
Advanced General Relativity - Lecture 3

Rafael Sorkin Perimeter Institute for Theoretical Physics

January 29, 2013

PIRSA:13010013
How to Fall into a Black Hole

Herman Verlinde Princeton University
January 29, 2013

PIRSA:13010020
Quantum Fields and Strings
12/13 PSI - Condensed Matter Review Lecture 2

Alioscia Hamma University of Naples Federico II
January 29, 2013

PIRSA:13010098
Condensed Matter
Cosmic Tides

Ue-Li Pen University of Toronto
January 29, 2013

PIRSA:13010114
Cosmology

Searching for topological phases in transition metal oxide heterostructures

Ying Ran Boston College
January 31, 2013

PIRSA:13010113
Condensed Matter
In this talk I will present our recent investigations on possible topological phases in (111) heterostructures of transition metal oxide. These (111) heterstructures are promising systems to realize many 2D topological phases at high temperatures, even with strong correlations, which is hard to be achieved in conventional materials. Several examples will be discussed, including high-temperature quantum spin hall effect in LaAlO3/LaAuO3/LaAlO3 bilayer, correlation induced topological phases in LaAlO3/LaNiO3/LaAlO3 multilayer, nearly flat topological band with C=2 (C: Chern number) in SrIrO3 trilayer, and abelian/nonabelian fractional quantum hall effects in the absence of Landau levels (fractional Chern insulators). If time is allowed, I will also briefly introduce our work on classifying wavefunctions of fractional Chern/topological insulators.
12/13 PSI - Condensed Matter Review Lecture 4

Alioscia Hamma University of Naples Federico II
January 31, 2013

PIRSA:13010100
Condensed Matter
12/13 PSI - Quantum Gravity Review Lecture 4

Bianca Dittrich Perimeter Institute for Theoretical Physics
January 31, 2013

PIRSA:13010092
Quantum Gravity
12/13 PSI - Gravitational Physics Review Lecture 4

Ruth Gregory King's College London
January 31, 2013

PIRSA:13010096
Strong Gravity
Hidden Structure in Linguistics: The Organization of Sound Systems

Elan Dresher

January 30, 2013

PIRSA:13010017

I will discuss some basic notions in the theory of phonology (sound systems in language). The sounds of a language are generally assumed to be composed of smaller constituents, called features. The features that make up a sound cannot be directly obtained from its pronunciation, but rather must be inferred from the system of contrasts that are at play in a particular language. How to determine which features are contrastive presents a logical and empirical puzzle that may be interesting to students of physics, who are accustomed to explaining observable events in terms of hidden structures that cannot be directly observed.
12/13 PSI - Condensed Matter Review Lecture 3

Alioscia Hamma University of Naples Federico II
January 30, 2013

PIRSA:13010099
Condensed Matter
12/13 PSI - Quantum Gravity Review Lecture 3

Bianca Dittrich Perimeter Institute for Theoretical Physics
January 30, 2013

PIRSA:13010091
Quantum Gravity
12/13 PSI - Gravitational Physics Review Lecture 3

Ruth Gregory King's College London
January 30, 2013

PIRSA:13010095
Strong Gravity
Advanced General Relativity - Lecture 3

Rafael Sorkin Perimeter Institute for Theoretical Physics

January 29, 2013

PIRSA:13010013
How to Fall into a Black Hole

Herman Verlinde Princeton University
January 29, 2013

PIRSA:13010020
Quantum Fields and Strings
In this talk I investigate the "firewall argument", that claims that black hole horizons can not be smooth. Using a holographic model of the black hole horizon as a quantum mechanical membrane, I show how to recover the black hole interior as an emergent smooth region of space-time. The reconstruction makes use of the formalism of quantum error correcting codes. I explain why the horizon of very old black holes appears to be singular, and formulate a complementarity principle that resolves this firewall paradox.
12/13 PSI - Condensed Matter Review Lecture 2

Alioscia Hamma University of Naples Federico II
January 29, 2013

PIRSA:13010098
Condensed Matter
Cosmic Tides

Ue-Li Pen University of Toronto
January 29, 2013

PIRSA:13010114
Cosmology
We apply CMB lensing techniques to large scale structure and solve for the 3-D cosmic tidal field. We use small scale filamentary structures to solve for the large scale tidal shear and gravitational potential. By comparing this to the redshift space density field, one can measure the gravitational growth factor on large scales without cosmic variance. This potentially enables accurate measurements of neutrino masses and reconstruction of radial modes lost in 21 cm intensity mapping, which are essential for CMB and other cross correlations. We relate the tidal fields to the squeezed limit bispectrum, and present initial results from simulations and data from the SDSS.

Title	Date	Collection	Type	Info
Searching for topological phases in transition metal oxide heterostructures	2013‑01‑31	Quantum Matter	Scientific Series	View details
12/13 PSI - Condensed Matter Review Lecture 4	2013‑01‑31	12/13 PSI - Condensed Matter Review	Course	View details
12/13 PSI - Quantum Gravity Review Lecture 4	2013‑01‑31	12/13 PSI - Quantum Gravity Review	Course	View details
12/13 PSI - Gravitational Physics Review Lecture 4	2013‑01‑31	12/13 PSI - Gravitational Physics Review	Course	View details
Hidden Structure in Linguistics: The Organization of Sound Systems	2013‑01‑30	Colloquium	Scientific Series	View details
12/13 PSI - Condensed Matter Review Lecture 3	2013‑01‑30	12/13 PSI - Condensed Matter Review	Course	View details
12/13 PSI - Quantum Gravity Review Lecture 3	2013‑01‑30	12/13 PSI - Quantum Gravity Review	Course	View details
12/13 PSI - Gravitational Physics Review Lecture 3	2013‑01‑30	12/13 PSI - Gravitational Physics Review	Course	View details
Advanced General Relativity - Lecture 3	2013‑01‑29	Elements of General Relativity	Course	View details
How to Fall into a Black Hole	2013‑01‑29	Quantum Fields and Strings	Scientific Series	View details
12/13 PSI - Condensed Matter Review Lecture 2	2013‑01‑29	12/13 PSI - Condensed Matter Review	Course	View details
Cosmic Tides	2013‑01‑29	Cosmology and Gravitation	Scientific Series	View details

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