July 26 (Fri) at 14:00 - 15:30, 2024 (JST)
  • Wei-Hsiang Shao (Ph.D. Student, Department of Physics, National Taiwan University, Taiwan)
Tsukasa Tada

Nonlocality is a fundamental property of string theory, where point-like particles are replaced by extended strings. This feature is especially evident in string field theories, where field components interact through form factors containing spacetime derivatives of infinite order. The usual approach to canonical quantization is no longer applicable, and thus a non-perturbative treatment of nonlocal effects at the quantum level remains unclear. In this seminar, I will discuss a recent attempt to construct an operator formalism for stringy nonlocal field theories, and explore the potential implications for black hole radiation and primordial fluctuations in the early universe.

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