Project description
Combinatorial factorisation algebras as a framework for quantum field theory
Factorisation algebras are sophisticated mathematical structures that organise local information to describe global phenomena in quantum field theory (QFT), classical field theory and algebraic geometry. While they are among the most flexible approaches to mathematical QFT, no description of factorisation algebras of discretised QFT exists. With the support of the Marie Skłodowska-Curie Actions programme, the DisQ FA project aims to close this gap by developing a discrete version of combinatorial factorisation algebras that will provide deeper insight into mathematical QFT. Using this approach, the project aims to resolve an open conjecture regarding topological QFT, illustrate and demonstrate dualities between QFTs, and establish a connection between discrete methods and category-theoretic techniques for conformal field theory.
Objective
This project will contribute to our understanding of mathematical Quantum Field Theory (QFT) by formulating a discrete version of Factorisation Algebras (FAs). This will be used to solve an open conjecture about Topological QFT (TQFT), describe and establish dualities between QFTs, and form a bridge between discrete and category-theoretic techniques for Conformal Field Theory (CFT). FAs are among the most flexible approaches to mathematical QFT, but no description as FAs of discretised QFT is known. This project's combinatorial FAs (cFAs) fill this gap. They have many applications, three of which will be covered in this project.
The first is to prove that the discrete state-sum models for Topological QFT (TQFT) give rise to Functorial Field Theories by fitting state-sum models into the sFA formalism and establishing a continuum limit result for topological sFA. Functorial Field Theory (cf. Atiyah, Lurie and many others) is a formalism for QFT that is particularly popular for TQFT. While this conjecture has been around for over 20 years and is believed to be true no proof exists.
Secondly, I will use techniques from duality for sheaves and cosheaves on simplicial complexes to prove a duality result for sFA analogous to Poincaré-Koszul-Verdier duality. Lattice models are a source of interesting dualities between QFTs, such as the Kramers-Wanier self-duality of the Ising model. These dualities will be shown to be an instance of sFA duality, and this description will be used to find new dualities for physically relevant QFTs. Associated to these dualities are defects which are intensively studied in theoretical physics.
Thirdly, cFAs will be used to give a FA description of the discrete QFT known as the Ising model. This will be linked with Discrete Holomorphicity techniques for CFT to find an FA description of the CFT in the continuum limit.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
You need to log in or register to use this function
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
-
HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
See all projects funded under this programme
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
See all projects funded under this funding scheme
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2024-PF-01
See all projects funded under this callCoordinator
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
02150 Espoo
Finland
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.