Current Reflection and Transmission at Conformal Defects: Applying BCFT to Transport Process

Understand

We study reflection/transmission process at conformal defects by introducing new transport coefficients for conserved currents.

• These coefficients are defined by using BCFT techniques thanks to the folding trick, which turns the conformal defect into the boundary.
• With this definition, exact computations are demonstrated to describe reflection/transmission process for a class of conformal defects.
• We also compute the boundary entropy based on the boundary state.