The No-Hiding Theorem in Quantum Information

A new no-go theorem of quantum information, the no-hiding theorem, was presented in 2007 by Braunstein and Pati. Motivated by the Black hole information paradox, this theorem constrains the location of information in quantum space by showing how it cannot be fully hidden in correlations between subsystems. In this work we revisit the no-hiding theorem, examining its origin in quantum foundations, its connection to entanglement, and how its imposed constraints may impact quantum computing and thermodynamics.