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TCSA, or: yet another look at the Ising phase transition

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If you have a question about this talk, please contact Marco Nardecchia .

Apart from the lattice, few techniques are available to deal with strongly coupled quantum field theories. In this talk, I will discuss one such method: the Truncated Conformal Space Approach (TCSA), proposed by Yurov and Al. Zamolodchikov in 1989. This is a numerical method for doing non-perturbative calculations in renormalization group flows in D-dimensional theories. As a guiding example, I will discuss the applications of this scheme to phi^4 theory and its spectroscopy in the Z_2 broken and unbroken phases, as well as its critical point (i.e. the critical point of the Ising model).

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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