Quantum Matter Day

Conference Date: 
Tuesday, November 13, 2018 - 09:00 to 17:00
Scientific Areas: 
Condensed Matter
Quantum Fields and Strings
Quantum Gravity
Quantum Information

The Quantum Matter Day is an opportunity for all Perimeter researchers working in different aspects of quantum matter (from condensed matter to quantum fields and strings, from quantum foundations to mathematical physics, from quantum gravity to quantum information) to get together and learn about each other's work. For this purpose, there will be over 20 mini-talks (7 minutes each) by senior PhD students, postdocs, and faculty, as detailed in the schedule. The talks are divided into two morning sessions and two afternoon sessions, with breaks between blocks for discussion.

This one-day event is organized as part of Perimeter's recently established Quantum Matter Initiative (https://www.perimeterinstitute.ca/research/research-initiatives/quantum-matter-initiative).

Event Date: 
Tuesday, November 13th - 9:00am - 5:00pm
Location: 
Bob Room

 

 

Speaker

Time

Title

Welcome 8:50-9:00

Yin-Chen He

9:00-9:10

Emergent QED3 and QCD3 in condensed matter

Ashley Milsted

9:10-9:20

Emergent conformal transformations in critical spin chains and tensor networks

Paula Mellado

9:20-9:30

Of honeycomb lattices: classical and quantum spin liquids

Djordje Radicevic

9:30-9:40

Dualities, anomalies, and all that

Aleksander Kubica

9:40-9:50

Cellular-automata decoders with provable thresholds for topological codes

Stefan Kuehn

9:50-10:00

Approaching Lattice Field Theories with Tensor Networks

Andres Schlief Carvajal

10:00-10:10

Non-Fermi Liquid Metals

Break from 10:10-10:30

Guifre Vidal

10:30-10:40

Tensor networks and geometry

Janet Hung

10:40-10:50

Tensor network and bulk reconstruction

Jacob Bridgeman

10:50-11:00

Defects in Topological Phases

Sung-Sik Lee

11:00-11:10

State dependent spread of entanglement in relatively local Hamiltonians

Nick Hunter-Jones

11:10-11:20

Quantum information approaches to chaos and scrambling

Roger Melko

11:20-11:30

How I learned to stop worrying and love the pickle

Alvaro M. Alhambra

11:30-11:40

Quantum equilibration in finite time

Break from 11:40-14:00

Adam Lewis

14:00-14:10

Matrix Product State Simulations of Stress-Energy Tensors Near 2D Black Holes

Chong Wang

14:10-14:20

Effective field theory approach to quantum many-body physics

Vasudev Shyam

14:20-14:30

The  flow and finite radius holography

Antony Speranza

14:30-14:40

Edge modes and entanglement for gravity

Yoni BenTov

14:40-14:50

Thermodynamic interpretation of gravitational shockwaves

Beni Yoshida

14:50-15:00

Random comments on scrambling

Martin Ganahl

15:00-15:10

Continuous matrix product states and continuous MERA: how I mastered the Fourier transform

Closing Remarks

 

Title and Abstracts (NOT TIME ORDERED) Quantum Matter Day, November 13 2018

 

Speaker

Title

Abstract

Yin-Chen He

Emergent QED3 and QCD3 in condensed matter

TBA

Beni Yoshida

Random comments on scrambling

TBA

Ashley Milsted

Emergent conformal transformations in critical spin chains and

tensor networks

Conformal symmetry emerges in many critical systems. It turns out, conformal *transformations* do too! Also inside some tensor networks.

Paula Mellado

Of honeycomb lattices: classical and quantum spin liquids

TBA

Djordje Radicevic

Dualities, anomalies, and all that

I will describe some ideas from my recent work that centers on dualities, anomalies, and spin structure-dependence in low-dimensional fermion theories.

Aleksander Kubica

Cellular-automata decoders with provable thresholds for topological codes

I will discuss a new cellular automaton, the Sweep Rule, which generalizes Toom's rule and can be used to decode errors in topological quantum codes in d ≥ 3 dimensions.

Stefan Kuehn

Approaching Lattice Field Theories with Tensor Networks

I will talk about the challenges and prospects of using tensor networks to numerically study lattice field theories. While the dimensions and systems sizes amenable to tensor network studies are still far from those achieved by conventional Monte Carlo simulations, they offer a promising alternative for scenarios in which Monte Carlo simulations are hindered by the sign problem.

Andres Schlief Carvajal

Non-Fermi Liquid Metals

 I will give a brief overview of my contributions to the understanding of Non-Fermi Liquid metallic states of matter, my current research and future directions.

 

 

 

 

 

 

 

 

 

 

Guifre Vidal

Tensor networks and geometry

For the last 10 years MERA has been debated to represent either "hyperbolic space" or "de Sitter spacetime". I will show that it actually corresponds to a path integral on a "light cone", which is neither of those, and how to build euclidean MERA and lorentzian MERA tensor networks that correspond to hyperbolic space and de Sitter spacetime, respectively.

Janet Hung

Tensor network and bulk reconstruction

We describe a few things that we learn about reconstructing the AdS/CFT using tensor networks

Sung-Sik Lee

State dependent spread of entanglement in relatively local Hamiltonians

Understanding dynamical properties of a class of non-local Hamiltonians from which local theories emerge within short-range entangled states.

Jacob Bridgeman

Defects in Topological Phases

I will discuss recent work (with Daniel Barter and Corey Jones) on fusing line and point defects in topological phases (arXiv:1806.01279 and arXiv:1810.09469).

Nick Hunter Jones

Quantum information approaches to chaos and scrambling

Quantum chaos is believed to underlie the dynamics of generic strongly-interacting systems, but we are still without precise definitions. I'll describe some QI inspired diagnostics of chaotic dynamics.

Roger Melko

How I learned to stop worrying and love the pickle

TBA

Alvaro M. Alhambra

Quantum equilibration in finite time

I will outline previous rigorous results on equilibration and thermalization of quantum      systems, sketch the big open problems in the area and show results on the linear response regime

 

 

Adam Lewis

Matrix Product State Simulations of Stress-Energy Tensors Near 2D Black Holes

We discuss methods to compute the stress-energy tensor near black holes using matrix product states

 

Martin Ganahl

continuous MPS and continuous MERA: how I mastered the Fourier transform

I will talk about continuous matrix product states and continuous multi-scale entanglement renormalization for non-relativistic and relativistic quantum field theories

Chong Wang

Effective field theory approach to quantum many-body physics

Many-body physics is hard. Fortunately the universal aspects of the physics (say at low energy, long wavelength) of a many-body system are often captured by a much simpler quantum field theory. I will briefly describe some examples in quantum magnetism along this line, focusing on recent progress such as dualities, emergent symmetries, anomalies and UV-IR connections.

Yoni BenTov

Thermodynamic interpretation of gravitational shockwaves

I want to understand whether the ‘t Hooft effective action can be derived from geometrical perturbations of the bifurcation surface.

Antony Speranza

Edge modes and entanglement for gravity

I will discuss the problem of defining entanglement entropy in a gravitational theory, and the necessity of introducing edge modes in a subregion to allow the gravitational Hilbert space to factorize. I will comment on some some confusing aspects of this program related to edge modes for diffeomorphisms that move the entangling surface.

Vasudev Shyam

The  flow and finite radius holography

I will describe the role of irrelevant deformations such as the  operator in holographic theories whose bulk duals are described by gravity regions of AdS space cutoff at finite radius. I will also describe how certain holographic entropy conjectures generalise in this scenario.