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SIMIS String Math Seminar
Celestial optical theorem and CPW coefficients in celestial holography
Celestial optical theorem and CPW coefficients in celestial holography
Organizer
Veronica Pasquarella
Speaker
Wenjie Ma
Time
Wednesday, November 13, 2024 4:00 PM - 5:00 PM
Venue
SIMIS-1610
Abstract
In the first part of the talk, I will dereve the nonperturbative celestial optical theorem from the unitarity of S-matrix. This theorem provides a set of nonperturbative bootstrap equations of the conformal partial wave (CPW) coefficients. The celestial optical theorem implies that the imaginary part of CPW coefficient with appropriate conformal dimensions is non-negative. By making certain assumptions and using the celestial optical theorem, we derive nonperturbative results concerning the analytic structure of CPW coefficients.
In the second part, I will show how a specific CPW coefficient in CCFT can be used to fix all other CPW coefficiets. Moreover, I will discuss the connection between this CPW coefficient and scattering amplitude.