Quantum Secret Sharing Capacity Limits

This paper investigates the fundamental limits of quantum secret sharing (QSS), a crucial area in quantum cryptography. It provides an information-theoretic framework for analyzing the rates at which quantum secrets can be shared securely among multiple parties. The work's significance lies in its contribution to understanding the capacity of QSS schemes, particularly in the presence of noise, which is essential for practical implementations. The paper's approach, drawing inspiration from classical secret sharing and connecting it to compound quantum channels, offers a valuable perspective on the problem.