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Multiplets in the Entanglement Spectrum

Ari Turner Universiteit van Amsterdam

September 06, 2012

PIRSA:12090056
Entropic uncertainty relations for quantum operations

Karol Zyczkowski Jagiellonian University
September 05, 2012

PIRSA:12090057
Mathematical Physics
12/13 PSI Researcher Presentations

Greg Dick Brock University

September 05, 2012

PIRSA:12090040
Ising Model

John Berlinsky McMaster University
September 04, 2012

PIRSA:12090054
Mathematical Physics
Inflation from Magnetic Drift

Mark Wyman PDT Partners LLC
September 04, 2012

PIRSA:12090050
Astrophysics
Introduction to Mathematica - Lecture 1b

Pedro Vieira Perimeter Institute for Theoretical Physics
September 04, 2012

PIRSA:12090051
Mathematical Physics
Introduction to Mathematica - Lecture 1a

Pedro Vieira Perimeter Institute for Theoretical Physics
September 04, 2012

PIRSA:12090041
Mathematical Physics
Fundamental quantum effects in the laboratory?

Ralf Schuetzhold Helmholtz-Zentrum Dresden-Rossendorf
August 30, 2012

PIRSA:12080045
High Energy Physics
Critical Collapse in the Axion-Dilaton System in Diverse Dimensions

Ehsan Hatefi The Abdus Salam International Centre for Theoretical Physics (ICTP)
August 30, 2012

PIRSA:12080044
High Energy Physics
Condensed Matter 101 - Lecture 4

Denis Dalidovich
August 30, 2012

PIRSA:12080035
Condensed Matter
Integral Transforms & Green's Functions - Lecture 4

David Kubiznak Charles University
August 30, 2012

PIRSA:12080031
Mathematical Physics
Condensed Matter 101 - Lecture 3

Denis Dalidovich
August 29, 2012

PIRSA:12080034
Condensed Matter

Multiplets in the Entanglement Spectrum

Ari Turner Universiteit van Amsterdam

September 06, 2012

PIRSA:12090056

What information can be determined about a state given just the ground state wave function? Quantum ground states, speaking intuitively, contain fluctuations between many of the configurations one might want to understand. The information about them can be organized by introducing an imaginary system, dubbed the entanglement Hamiltonian. What light does the dynamics of this Hamiltonian (a precise version of the notion of "zero point motion") shed on the actual system?

I will start my discussion near critical points, where Lorentz invariance often emerges and the entanglement Hamiltonian becomes tractable, revealing that it exists in one dimension less than the real system. One application is to the fluctuations of angular momentum in a spin chain.

The entanglement Hamiltonian is especially successful at clarifying the properties of quantum phases without order, such as topological insulators. In particular, spin chains often have no long range order due to quantum fluctuations. Nevertheless there can be phase transitions between two of these disordered states, suggesting the existence of a hidden order.

My main aim in the talk will be to demonstrate that the entanglement spectrum can serve as an order parameter for these unusual transitions; this observation leads to a classification of one-dimensional phases. One can understand the phases of the actual system simply by looking at the spectrum of the entanglement Hamiltonian, just as one deduces the properties of atoms from their spectra.
Entropic uncertainty relations for quantum operations

Karol Zyczkowski Jagiellonian University
September 05, 2012

PIRSA:12090057
Mathematical Physics
12/13 PSI Researcher Presentations

Greg Dick Brock University

September 05, 2012

PIRSA:12090040
Ising Model

John Berlinsky McMaster University
September 04, 2012

PIRSA:12090054
Mathematical Physics
Inflation from Magnetic Drift

Mark Wyman PDT Partners LLC
September 04, 2012

PIRSA:12090050
Astrophysics
I will describe a new, generic mechanism for realizing a period of slowly-rolling inflation through the use of an analog of 'magnetic drift.' I will demonstrate how the mechanism works through two particular worked examples: Chromo-Natural Inflation, which exists as a purely 4D effective theory, and a version that can appear naturally in string theory.
Introduction to Mathematica - Lecture 1b

Pedro Vieira Perimeter Institute for Theoretical Physics
September 04, 2012

PIRSA:12090051
Mathematical Physics
Introduction to Mathematica - Lecture 1a

Pedro Vieira Perimeter Institute for Theoretical Physics
September 04, 2012

PIRSA:12090041
Mathematical Physics
Fundamental quantum effects in the laboratory?

Ralf Schuetzhold Helmholtz-Zentrum Dresden-Rossendorf
August 30, 2012

PIRSA:12080045
High Energy Physics
There are several fundamental predictions of quantum field theory, such as Hawking radiation (i.e., black hole evaporation) or the Sauter-Schwinger effect (i.e., electron-positron pair creation out of the quantum vacuum by a strong electric field), which have so far eluded direct experimental verification.
However, it should be possible to gain some experimental access to these effects via suitable condensed matter analogues. In this talk, some possibilities for reproducing such fundamental
quantum effects in the laboratory are discussed.
Critical Collapse in the Axion-Dilaton System in Diverse Dimensions

Ehsan Hatefi The Abdus Salam International Centre for Theoretical Physics (ICTP)
August 30, 2012

PIRSA:12080044
High Energy Physics
We study the gravitational collapse of the axion-dilaton system suggested by type IIB string theory in dimensions ranging from four to ten. We extend previous analysis concerning the role played by the global SL(2, R) symmetry and also we explain ,why we do have three different assumptions(cases). We evaluate the Choptuik exponents in the elliptic case. Eventually we try to explain some of the open questions for two other assumptions and future directions.
Condensed Matter 101 - Lecture 4

Denis Dalidovich
August 30, 2012

PIRSA:12080035
Condensed Matter
Integral Transforms & Green's Functions - Lecture 4

David Kubiznak Charles University
August 30, 2012

PIRSA:12080031
Mathematical Physics
Condensed Matter 101 - Lecture 3

Denis Dalidovich
August 29, 2012

PIRSA:12080034
Condensed Matter

Title	Date	Collection	Type	Info
Multiplets in the Entanglement Spectrum	2012‑09‑06	Quantum Matter	Scientific Series	View details
Entropic uncertainty relations for quantum operations	2012‑09‑05	Perimeter Institute Quantum Discussions	Scientific Series	View details
12/13 PSI Researcher Presentations	2012‑09‑05	12/13 PSI Researcher Presentations	Course	View details
Ising Model	2012‑09‑04	12/13 PSI - Front End	Course	View details
Inflation from Magnetic Drift	2012‑09‑04	Cosmology and Gravitation	Scientific Series	View details
Introduction to Mathematica - Lecture 1b	2012‑09‑04	12/13 PSI - Front End	Course	View details
Introduction to Mathematica - Lecture 1a	2012‑09‑04	12/13 PSI - Front End	Course	View details
Fundamental quantum effects in the laboratory?	2012‑08‑30	Quantum Gravity	Scientific Series	View details
Critical Collapse in the Axion-Dilaton System in Diverse Dimensions	2012‑08‑30	Strong Gravity	Scientific Series	View details
Condensed Matter 101 - Lecture 4	2012‑08‑30	12/13 PSI - Front End	Course	View details
Integral Transforms & Green's Functions - Lecture 4	2012‑08‑30	12/13 PSI - Front End	Course	View details
Condensed Matter 101 - Lecture 3	2012‑08‑29	12/13 PSI - Front End	Course	View details

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Format results

Multiplets in the Entanglement Spectrum

Entropic uncertainty relations for quantum operations

12/13 PSI Researcher Presentations

Ising Model

Inflation from Magnetic Drift

Introduction to Mathematica - Lecture 1b

Introduction to Mathematica - Lecture 1a

Fundamental quantum effects in the laboratory?

Critical Collapse in the Axion-Dilaton System in Diverse Dimensions

Condensed Matter 101 - Lecture 4

Integral Transforms & Green's Functions - Lecture 4

Condensed Matter 101 - Lecture 3

Multiplets in the Entanglement Spectrum

Entropic uncertainty relations for quantum operations

12/13 PSI Researcher Presentations

Ising Model

Inflation from Magnetic Drift

Introduction to Mathematica - Lecture 1b

Introduction to Mathematica - Lecture 1a

Fundamental quantum effects in the laboratory?

Critical Collapse in the Axion-Dilaton System in Diverse Dimensions

Condensed Matter 101 - Lecture 4

Integral Transforms & Green's Functions - Lecture 4

Condensed Matter 101 - Lecture 3