3 papers
quant-ph2025
Quantum capacity amplification via privacy
Peixue Wu, Yunkai Wang
We investigate superadditivity of quantum capacity through private channels whose Choi-Jamiolkowski operators are private states. This perspective links the security structure of p…
quant-ph2025
Secure quantum ranging
Yunkai Wang, Graeme Smith, Alex May
Determining and verifying an object's position is a fundamental task with broad practical relevance. We propose a secure quantum ranging protocol that combines quantum ranging with…
quant-ph2025
Gaussian quantum data hiding
Yunkai Wang, Graeme Smith
Quantum data hiding encodes a hidden classical bit to a pair of quantum states that is difficult to distinguish using a particular set of measurement, denoted as . In this work,…