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Quantum Fields and Probability

Objective

Quantum Field Theory (QFT) has become a universal framework in physics to study systems with infinite number of degrees of freedom.
It has also had in the past significant interaction with Probability starting with Constructive QFT and rigorous statistical mechanics. The goal of this proposal is to bring QFT methods to probabilistic problems and new ideas from Probability to QFT. It concentrates on two concrete topics:

(1) Renormalization Group study of rough Stochastic Partial Differential Equations, both their path wise solutions and their space-time correlations and stationary states. These equations are ubiquitous in non-equilibrium physics and they are mathematically challenging.

(2) The use of Multiplicative Chaos theory in the rigorous construction and study of the Liouville Conformal Field Theory. Liouville theory is one of the most studied Conformal Field Theories in physics due to its connection to scaling limits of random surfaces and string theory. It has many mathematically puzzling features and its rigorous study is now possible.

Although the physical applications of these theories are far apart on the level of mathematical methods they have a common unity based on renormalization theory that I want to utilize. I think time is ripe for a new fruitful interaction between QFT and Probability.

Keywords

Programme(s)

Topic(s)

Funding Scheme

ERC-ADG - Advanced Grant

See all projects funded under this funding scheme

Call for proposal

(opens in new window) ERC-2016-ADG

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Host institution

HELSINGIN YLIOPISTO
Net EU contribution
€ 2 463 412,00
Address
FABIANINKATU 33
00014 Helsinki
Finland
Region
Manner-Suomi Helsinki-Uusimaa Helsinki-Uusimaa
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 2 463 412,00

Beneficiaries (1)