Seminar detail: A particle on a ring or: how I learned to stop worrying and love theta-vacua

Date&Time	Wed Dec 16 2026 (13:00 - 14:00)
Speaker	Ryosuke Sato
Affiliation	Osaka University
Title	A particle on a ring or: how I learned to stop worrying and love theta-vacua
Abstract	Although the QCD Lagrangian allows CP violation by the theta-term, no such effect has been observed yet. This puzzle is called the strong CP problem. In this talk, I will review a recent debate on the order of limit in the path integral formulation of strong CP violation, and discuss the validity of the formulation by focusing on quantum mechanics on a circle.
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