Condensed matter physics is the branch of physics that studies systems of very large numbers of particles in a condensed state, like solids or liquids. Condensed matter physics wants to answer questions like: why is a material magnetic? Or why is it insulating or conducting? Or new, exciting questions like: what materials are good to make a reliable quantum computer? Can we describe gravity as the behavior of a material? The behavior of a system with many particles is very different from that of its individual particles. We say that the laws of many body physics are emergent or collective. Emergence explains the beauty of physics laws.
Format results

16 talksCollection Number C19043
Talk

PSI 2019/2020  Condensed Matter (Wang)  Lecture 1
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 2
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 3
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 4
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 5
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 6
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 7
Chong Wang Perimeter Institute for Theoretical Physics

PSI 2019/2020  Condensed Matter (Wang)  Lecture 8
Chong Wang Perimeter Institute for Theoretical Physics


Boundaries and Defects in Quantum Field Theory
21 talksCollection Number C19035Talk

Symmetries and Dualities of Abelian TQFTs
Jaume Gomis Perimeter Institute for Theoretical Physics

TBD
Leonardo Rastelli Stony Brook University

Universality at large transverse spin in defect CFTs
Madalena Lemos European Organization for Nuclear Research (CERN)

Domain Walls in SuperQCD
Francesco Benini SISSA International School for Advanced Studies

Weyl Anomaly Induced Current and Holography
RongXin Miao Sun YatSen University

Wilson line impurities, flows and entanglement entropy
Prem Kumar Swansea University

Anomalies in the Space of Coupling Constants
Nathan Seiberg Institute for Advanced Study (IAS)



Machine Learning for Quantum Design
30 talksCollection Number C19025Talk


Simulating Thermal and Quantum Fluctuations in Materials and Molecules
Michele Ceriotti L'Ecole Polytechnique Federale de Lausanne (EPFL)

How to use a Gaussian Boson Sampler to learn from graphstructured data
Maria Schuld University of KwaZuluNatal

Machine learning meets quantum physics
DongLing Deng Tsinghua University


Engineering Programmable Spin Interactions in a NearConcentric Cavity
Emily Davis Stanford University

Alleviating the sign structure of quantum states
Giacomo Torlai Flatiron Institute

Navigating the quantum computing field as a high school student
Tanisha Bassan The Knowledge Society


ManyBody States and Dynamics Workshop II
8 talksCollection Number C19024Talk

Simulating an expanding universe on Google's Bristlecone
Guifre Vidal Alphabet (United States)

Preparing Critical and Thermofield Double States on a Quantum Computer
Timothy Hsieh Perimeter Institute for Theoretical Physics

TensorNetwork: accelerating tensor network computations and improving the coding experience
Ashley Milsted California Institute of Technology

Maximally sensitive sets of states
Daniel Gottesman University of Maryland, College Park

Quantum simulation of 2D and 3D spin models in a linear chain of ions
KaziRajibul Islam Institute for Quantum Computing (IQC)

Polariton Graph Network
Na Young Kim Institute for Quantum Computing (IQC)


Quantum Simulation of Lattice Field Theories with Microwave Photons
Christopher Wilson Institute for Quantum Computing (IQC)


Quantum Matter: Emergence & Entanglement 3
24 talksCollection Number C19021Talk

Theory of a Planckian metal with a remnant Fermi surface.
Subir Sachdev Harvard University

Twisted foliated fracton order
Xie Chen California Institute of Technology

Landau ordering and other phase transitions beyond the Landau paradigm
Senthil Todadri Massachusetts Institute of Technology (MIT)  Department of Physics

QED and quantum magnetism in (2+1)d
Chong Wang Perimeter Institute for Theoretical Physics


Shadow of complex fixed point: Approxmiate conformality of Q>4 Potts model
Han Ma Perimeter Institute for Theoretical Physics

On the relation between the magnitude and exponent of OTOCs
Yingfei Gu Harvard University

Firewalls vs. Scrambling
Beni Yoshida Perimeter Institute for Theoretical Physics


Low Energy Challenges for High Energy Physicists 3
16 talksCollection Number C18013Talk

Emergent Gravity From Relatively Local Hamiltonians
SungSik Lee McMaster University

Strange Metals From Local Quantum Chaos
John McGreevy University of California, San Diego
PIRSA:18060028 


Holographic Solids: Transverse Phonons and Elastic Response
Lasma Alberte International School for Advanced Studies
PIRSA:18060031 
Particle Physics Beyond Colliders
Asimina Arvanitaki Perimeter Institute for Theoretical Physics
PIRSA:18060032 



PSI 2017/2018  Condensed Matter (Hamma)
15 talksCollection Number C17044Talk

PSI 2017/2018  Condensed Matter  Lecture 1
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 2
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 3
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 4
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 5
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 6
Alioscia Hamma University of Naples Federico II
PIRSA:18010081 
PSI 2017/2018  Condensed Matter  Lecture 7
Alioscia Hamma University of Naples Federico II

PSI 2017/2018  Condensed Matter  Lecture 8
Alioscia Hamma University of Naples Federico II


PSI 2017/2018  Condensed Matter (Tiwari)
15 talksCollection Number C17041Talk

PSI 2017/2018  Condensed Matter  Lecture 1
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 2
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 3
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 4
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 5
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 6
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 7
Rakesh Tiwari McGill University  Department of Physics

PSI 2017/2018  Condensed Matter  Lecture 8
Rakesh Tiwari McGill University  Department of Physics


Talk

Semisimple Hopf algebras and fusion categories
Cesar Galindo Universidad de los Andes

The Hopf C*algebraic quantum double models  symmetries beyond group theory
Andreas Bauer Freie Universität Berlin

Modular categories and the Witt group
Michael Mueger Radboud Universiteit Nijmegen

Topological Quantum Computation
Eric Rowell Texas A&M University

Gapped phases of matter vs. Topological field theories
Davide Gaiotto Perimeter Institute for Theoretical Physics

An Introduction to Hopf Algebra Gauge Theory
Derek Wise University of ErlangenNuremberg

Kitaev lattice models as a Hopf algebra gauge theory
Catherine Meusburger University of ErlangenNuremberg

Topological defects and highercategorical structures
Jurgen Fuchs Karlstad University


International Workshop on Quantum Spin Ice
20 talksCollection Number C17022Talk

Microscopic aspects of insulating rareearth pyrochlore magnets
Jeffrey Rau University of Toronto

Lightning review on emergent quantum electrodynamics in quantum spin ice
YongBaek Kim University of Toronto

The importance of defects and structural flexibility in the physics of quantum spin ices
Tyrel McQueen Johns Hopkins University

Quasiparticle breakdown in the quantum pyrochlore Yb2Ti2O7 in magnetic field
Radu Coldea University of Oxford

Lobed phase diagram of single crystalline Yb2Ti2O7 in [111] magnetic field
Collin Broholm National Institute of Standards & Technology

Experimental signatures of phase competition in quantum XY pyrochlores
Alannah Hallas McMaster University




4 Corners Southwest Ontario Condensed Matter Symposium 2017
11 talksCollection Number C17016Talk


Delafossite layered metals: intriguing physics in the high purity limit
Andrew Mackenzie Max Planck Institute

NMR signature of charge order in high Tc cuprates revisited
Takashi Imai McMaster University

Entanglement area law in superfluid 4He
Chris Herdman Institute for Quantum Computing (IQC)


Topological states in honeycomb materials
HaeYoung Kee University of Toronto

Manybody physics in a trapped ion quantum simulator
KaziRajibul Islam Institute for Quantum Computing (IQC)

Understanding the Emergence of Chiral Spin Liquids in Mott Insulators
Ciaran Hickey University of Toronto


Tensor Networks for Quantum Field Theories II
18 talksCollection Number C17011Talk

Discretizing the manyelectron Schrodinger Equation
Steven White University of California, Irvine

Emergence of conformal symmetry in critical spin chains
Ashley Milsted California Institute of Technology



Bridging Perturbative Expansions with Tensor Networks
Jutho Haegeman Ghent University

The continuous multiscale entanglement renormalization ansatz (cMERA)
Guifre Vidal Alphabet (United States)

Unitary Networks from the Exact Renormalization of Wavefunctionals
Rob Leigh University of Illinois UrbanaChampaign

Tensor networks and Legendre transforms
Brian Swingle Brandeis University


PSI 2019/2020  Condensed Matter (Wang)
16 talksCollection Number C19043PSI 2019/2020  Condensed Matter (Wang) 
Boundaries and Defects in Quantum Field Theory
21 talksCollection Number C19035Boundaries and defects play central roles in quantum field theory (QFT) both as means to make contact with nature and as tools to constrain and understand QFT itself. Boundaries in QFT can be used to model impurities and also the finite extent of sample sizes while interfaces allow for different phases of matter to interact in a controllable way. More formally these structures shed light on the structure of QFT by providing new examples of dualities and renormalization group flows. Broadly speaking this meeting will focus on three areas: 1) formal and applied aspects of boundary and defect conformal field theory from anomalies and ctheorems to topological insulators 2) supersymmetry and duality from exact computations of new observables to the construction of new theories and 3) QFT in curved space and gravity from holographic computations of entanglement entropy to ideas in quantum information theory. Registration for this event is now open.

Machine Learning for Quantum Design
30 talksCollection Number C19025Machine learning techniques are rapidly being adopted into the field of quantum manybody physics including condensed matter theory experiment and quantum information science. The steady increase in data being produced by highlycontrolled quantum experiments brings the potential of machine learning algorithms to the forefront of scientific advancement. Particularly exciting is the prospect of using machine learning for the discovery and design of quantum materials devices and computers. In order to make progress the field must address a number of fundamental questions related to the challenges of studying manybody quantum mechanics using classical computing algorithms and hardware. The goal of this conference is to bring together experts in computational physics machine learning and quantum information to make headway on a number of related topics including: Datadrive quantum state reconstruction Machine learning strategies for quantum error correction Neuralnetwork based wavefunctions Nearterm prospects for data from quantum devices Machine learning for quantum algorithm discovery Registration for this event is now closed

ManyBody States and Dynamics Workshop II
8 talksCollection Number C19024On Thursday June 13 the Institute for Quantum Computing (IQC) and Perimeter Institute for Theoretical Physics (PI) will participate in the oneday ManyBody States and Dynamics Workshop II. The goal of the workshop is to describe ongoing efforts to experimentally realize quantum manybody states and dynamics and discuss interesting classes of states and dynamics that could be targeted. Experimentalists working on several platforms (such as photons atom and ion traps superconducting qubits excitonpolaritons or NMR) and theoreticians specialized in manybody theory (entanglement topological order gauge theories criticality chaos error correction holography) and numerical simulations (exact diagonalization Monte Carlo DMRG tensor networks) will meet for a morning workshop to identify and discuss common interests.

Quantum Matter: Emergence & Entanglement 3
24 talksCollection Number C19021This third workshop of the Perimeter Institute series Emergence and Entanglement will center around four major frontiers in quantum matter research: (i) topological matter including recently discovered phases in three dimensions and new routes toward experimental realization (ii) critical states of matter especially interacting CFTs in 2+1 dimensions and dualities (iii) stateoftheart numerical approaches to tackle such manybody problems (e.g. DMRG MERA Monte Carlo) and (iv) quantum dynamics and thermalization.

Low Energy Challenges for High Energy Physicists 3
16 talksCollection Number C18013Throughout the history of quantum field theory there has been a rich crosspollination between high energy and condensed matter physics. From the theory of renormalization to the consequences of spontaneous symmetry breaking this interaction has been an incredibly fruitful one. In the last decade there has been a strong resurgence of interest in condensed matter systems in the high energy theoretical physics community. Taking advantage of developments in conformal field theories the conformal bootstrap gauge/gravity and other type of dualities as well as effective field theory techniques high energy theorists with all kinds of specialist backgrounds are thinking about the diverse behavior exhibited in low energy physical systems. Recent developments also employed quantum field theory ideas to improve our understanding of condensed and quantum matter systems as for example Femi liquids strange metals or the behavior of topological defects in ultra cold atom gases. For certain questions such approaches present relevant advantages with respect to more traditional techniques. Moreover in recent years the interplay between high energy and condensed matter physics found new fuel in the search for light dark matter. Indeed theoretical analyses have recently shifted the attention towards model for subGeV dark matter. The condensed matter community has played a crucial role in the design of possible new materials and detectors that could allow the observation of such particles. The aim of this workshop is to bring together likeminded high energy theorists with appropriate condensed matter theorists and experimentalists to tackle some of the most interesting problems in modern physics. The format has been designed to allow for plenty of time for open discussion and interaction between the participants. This will reinvigorate existing collaborations as well as create new fruitful ones.

PSI 2017/2018  Condensed Matter (Hamma)
15 talksCollection Number C17044PSI 2017/2018  Condensed Matter (Hamma) 
PSI 2017/2018  Condensed Matter (Tiwari)
15 talksCollection Number C17041PSI 2017/2018  Condensed Matter (Tiwari) 
Hopf Algebras in Kitaev's Quantum Double Models: Mathematical Connections from Gauge Theory to Topological Quantum Computing and Categorical Quantum Mechanics
18 talksCollection Number C17029The Kitaev quantum double models are a family of topologically ordered spin models originally proposed to exploit the novel condensed matter phenomenology of topological phases for faulttolerant quantum computation. Their physics is inherited from topological quantum field theories, while their underlying mathematical structure is based on a class of Hopf algebras. This structure is also seen across diverse fields of physics, and so allows connections to be made between the Kitaev models and topics as varied as quantum gauge theory and modified strong complementarity. This workshop will explore this shared mathematical structure and in so doing develop the connections between the fields of mathematical physics, quantum gravity, quantum information, condensed matter and quantum foundations.

International Workshop on Quantum Spin Ice
20 talksCollection Number C17022International Workshop on Quantum Spin Ice

4 Corners Southwest Ontario Condensed Matter Symposium 2017
11 talksCollection Number C17016This tenth annual oneday symposium aims to provide an opportunity for condensed matter researchers in Southwest Ontario to gather and discuss informally their most recent research. The general format of the meeting consists of 2 guest speakers and 57 contributed talks. The names of the contributing speakers and title of their talks will be announced later. Registration begins at 9:30 am. The meeting is expected to start around 9:45 am and end between 55:30 pm. A lunch will be provided by the Black Hole Bistro.
There will be two keynote speaker for the symposium; Professor Andrew Mackenzie from the Max Planck Institute for Chemical Physics of Solids,Dresden and Professor Anders Sandvik from Boston University. Their talk titles will be announced at a later date.
Registration for this event will open shortly.

Tensor Networks for Quantum Field Theories II
18 talksCollection Number C17011Tensor Networks for Quantum Field Theories II