2023年†
日時: June 7 (Wed) 16:30-17:30
場所: Workshop room at CCS/Zoom
講演者: Takayuki Sumimoto (University of Tsukuba)
タイトル: Data-driven construction of holographic QCD model
概要:
We propose a novel construction method for holographic QCD models
and validate its effectiveness using ρ meson spectrum data.
Holographic QCD models are effective models of hadron physics
that are constructed based on insights from gauge-gravity duality.
The construction of these models can be approached from two
directions: top-down, based on reduction from string theory, and
bottom-up, based on insights from gauge-gravity duality. However,
both methods have their problems. In the top-down approach, it is
generally difficult to reduce to hadron physics as a low-energy
effective model of QCD. The bottom-up approach, although based on
the properties of QCD, requires the assumption of a simple model.
In contrast, we propose a data-driven approach. In this method,
we construct complex holographic models from physical quantities
through spacetime emerging via deep learning based on AdS/DL and
the derivation of the corresponding gravitational action. In
particular, we construct the model using ρ meson spectrum data.
This study opens up new possibilities for the construction and
application of holographic QCD models, and could potentially
provide a new way to bridge the gap between string theory and
experimental facts.
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