RESEARCH

The research group led by Ramona Wolf focuses on the security of quantum cryptography, in particular quantum key distribution and randomness generation, and their connections to the foundations of quantum theory.

In our work, we develop general tools for the construction and analysis of information-theoretic security proofs, alongside concrete security proofs for quantum communication protocols. A particular focus is the role of underlying assumptions and their impact on achievable security in realistic implementations, with the aim of identifying assumptions that enable optimal trade-offs between security and practicality. In addition, we use cryptographic protocols as tools to investigate fundamental aspects of quantum theory. In particular, we analyse how structural features such as nonlocality, spacetime constraints, and (quantum) reference frames influence the formulation and analysis of communication protocols, including randomness generation.