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Семинар И. Я. Арефьевой "Перспективные направления в квантовой теории поля и суперструнах"
3 июня 2024 г. 16:00–16:45, г. Москва, МИАН, комн. 303 (ул. Губкина, 8)
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Introducing local quenches in massive scalar field theory
A. I. Belokon |
Количество просмотров: |
Эта страница: | 73 |
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Аннотация:
We will study operator local quenches in the simplest extension to the non-conformal case
— massive scalar field theory. We consider the dynamics of excited local states in an
arbitrary spacetime dimension and generalize the well-known two-dimensional CFT results.
We derive the energy density, U(1)-charge density and $\phi^2(x)$-condensate post-quench
dynamics, and identify different regimes of their evolution depending on the values of the
field mass and the UV regularization parameter. For local quenches in higher-dimensional
free massless scalar theories, we reproduce the structure of the available holographic
results. We also investigate the local quenches in massive scalar field theory on a cylinder
and show that they cause an erratic and chaotic-like evolution of observables with a
complicated localization-delocalization pattern.
Язык доклада: английский
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