Workshop “Hamiltonian methods in strongly coupled Quantum Field Theory”

Many interesting strongly interacting Quantum Field Theories are not amenable to analytical treatment. This workshop will focus on systematic numerical approaches to such theories relying on the quantum Hamiltonian, including Truncated Spectrum Approach, Light Front Quantization, Matrix Product States and Tensor Networks. Such methods provide a viable alternative to Lattice Monte Carlo simulations. Their advantage is the ability to access real-time observables, and to study Renormalization Group flows originating from strongly-interacting fixed points.

 

 

Speakers and talks:

Mari Carmen BANULS (MPI Quantum Optics, Garching)
Tensor network applications to (1+1)d gauge theories

Giuseppe CARLEO (ETH Zurich)
Neural-network quantum states

Sophia CHABYSHEVA (University of Minnesota Duluth)
Application of Light-Front methods to model theories   

Philippe CORBOZ (University of Amsterdam)
Simulation of 2D strongly correlated systems with infinite projected entangled-pair states

Joan ELIAS-MIRÓ  (SISSA, Trieste)
Precise calculations with the Renormalized Hamiltonian Truncation approach

Brian HENNING (Yale University)
Free field states and conformal bases

John HILLER (University of Minnesota Duluth)
Nonperturbative light-front methods

Andrew JAMES (University College London)
Truncated spectrum approaches for 2D many-body quantum systems

Andreas LÄUCHLI (University of Innsbruck)
Numerical Hamiltonian truncation approach to the phi^4 theory in 1+1d and beyond

Giuseppe MUSSARDO (SISSA, Trieste) 
Sinh-Gordon model and its duality

Didier POILBLANC (CNRS Toulouse)
Investigation of the chiral antiferromagnetic Heisenberg model using PEPS

Frank POLLMANN (TUM Munich)
Finding purifications with minimal entanglement

Neil ROBINSON (University of Amsterdam)
Rare non-thermal states in the non-integrable Ising field theory

Marco SERONE (SISSA, Trieste)
A look at phi^4_2 using perturbation theory

Gábor TAKÁCS (Budapest University of Technology and Economics)
Applications of TCSA to quenches

Guifré VIDAL (Perimeter Institute, Waterloo)
Conformal data from critical spin chains using periodic MPS and the Koo-Saleur formula

Karel VAN ACOLEYEN (University of Gent)
Tensor networks and the Schwinger model

Matthew WALTERS (CERN) 
Studying RG Flows with Lightcone Conformal Truncation

Program:

 
Mon Jan 8
Tue Jan 9
Wed Jan 10
Thu Jan 11
Fri Jan 12

9:30-11:00
morning coffee and
registration
morning coffee
morning coffee
morning coffee
morning coffee

 
TCSA session 1

MPS for gauge theories

 
lightfront day
TCSA session 2

10:00-11:00
Takacs
Van Acoleyen
Serone
Hiller
James

11:00-11:30
coffee break
coffee break
coffee break
coffee break
coffee break

11:30-12:30
Mussardo
Banuls
Vidal
Chabysheva
Robinson

12:30-14:30
lunch buffet
lunch buffet
lunch buffet
lunch buffet
lunch buffet

 
 
(phi^4)_2 session
PEPS session
 
 

14:30-15:30
Carleo
Elias-Miro
Corboz
Walters
 

15:30-16:30
coffee break
coffee break
coffee break
coffee break
free afternoon

16:30-17:30
Pollmann
Läuchli
Poilblanc
Henning
 

 
 
17:30 cocktail party
 
 
 

The talks have been recorded and are available at:

 Organisers:

   Ami KATZ (Boston University)
   Robert KONIK (Brookhaven National Laboratory)
   Slava RYCHKOV (IHES and ENS)
   Balt VAN REES (Durham University)

Supported by: the Simons Collaboration on the Non-perturbative Bootstrap http://bootstrapcollaboration.com/