4 papers
Secure Hybrid Key Growing via Coherence Witnessing and Bipartite Encoding
Pol Julià Farré, Chris Aaron Schneider, Christian Deppe
We propose a novel Hybrid Key Growing (HKG) protocol based on quantum principles and a classical physical-layer assumption. We simultaneously exploit the quantum photon-number and…
Entanglement-assisted authenticated BB84 protocol
Pol Julià Farré, Vladlen Galetsky, Soham Ghosh +2
In this work, we present a novel authenticated Quantum Key Distribution (QKD) protocol employing maximally entangled qubit pairs. In the absence of noise, we securely authenticate…
Optimal depth and a novel approach to variational quantum process tomography
Vladlen Galetsky, Pol Julià Farré, Soham Ghosh +2
In this work, we present two new methods for Variational Quantum Circuit (VQC) Process Tomography onto qubits systems: PT_VQC and U-VQSVD. Compared to the state of the art, PT_…
Existential Unforgeability in Quantum Authentication From Quantum Physical Unclonable Functions Based on Random von Neumann Measurement
Soham Ghosh, Vladlen Galetsky, Pol Juliá Farré +3
Physical Unclonable Functions (PUFs) leverage inherent, non-clonable physical randomness to generate unique input-output pairs, serving as secure fingerprints for cryptographic pro…