4 papers · 1 filter
Quantum gate lower bounds for loss-tolerant position verification
Alex May, Philip Verduyn Lunel
Quantum position-verification is a cryptographic task wherein a verifier attempts to establish the location in space of a prover. Recent experiments have implemented a well-studied…
Equivalence of non-local computation tasks beyond Clifford operations
Andreas Bluhm, Simon Höfer, Alex May +2
Non-local quantum computation (NLQC) studies how two collaborating players can implement channels on distributed systems using a single simultaneous round of quantum communication…
A complexity theory for non-local quantum computation
Andreas Bluhm, Simon Höfer, Alex May +3
Non-local quantum computation (NLQC) replaces a local interaction between two systems with a single round of communication and shared entanglement. Despite many partial results, it…
Towards experimental demonstration of quantum position verification using true single photons
Kirsten Kanneworff, Mio Poortvliet, Dirk Bouwmeester +6
The geographical position can be a good credential for authentication of a party, this is the basis of position-based cryptography - but classically this cannot be done securely wi…