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Watch a physics lecture exploring renormalization group (RG) interfaces formed by introducing relevant perturbations to field theories in half-space. Delve into the speaker's research on RG interfaces in large-N theories with double-trace operator deformations, examining their role in defect conformal field theory (DCFT). Learn about the extraction of DCFT data, calculation of interface free energy on a sphere, and the gravitational dual description involving bulk scalar fields in Anti-de Sitter (AdS) space with varying boundary conditions. Understand how these interfaces help illuminate possible infrared phases emerging from ultraviolet theories, with applications ranging from condensed matter to string theory, while seeing the demonstrated agreement between AdS and CFT calculations.
