ELFT HÍRADÓ

[somogyi <somogyi.gabor AT wigner.hun-ren.hu>]

Wigner FK RMI Elméleti Osztály Szemináriuma
Tisztelettel meghívjuk


        Király Csilla
        (BME Elméleti Fizika Tanszék és HUN-REN Wigner FK)


"Entanglement and quench dynamics in the thermally perturbed tricritical 
fixed point”


címmel tartandó szemináriumára.


Kivonat:



The Blume–Capel model, a spin chain exhibiting a tricritical point 
described by a conformal field theory with central charge c=7/10, 
provides a natural setting for studying its thermal perturbation, the 
integrable E_7 quantum field theory. In this talk, I present numerical 
and analytical investigations of the E_7 model. Numerically, I use the 
infinite Time Evolving Block Decimation (iTEBD) algorithm to study 
post-quench dynamics of the Blume–Capel model near the tricritical 
point. Analytically, I discuss results from the form factor bootstrap 
program, including the computation of twist-field form factors, 
validated using the \Delta-theorem. Finally, I present results on 
expectation values and entanglement entropies following E_7 mass 
quenches, which show strong agreement with theoretical predictions.


Helye: Wigner FK RMI III. ép. Tanácsterem
Ideje: 2026 március 20. péntek d.u. 2 óra

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                  Somogyi Gábor