9 citations · 12 across the 8 of their papers we have counts for
9 papers
Sharp error tolerance of the monogamy-of-entanglement game
Llorenç Escolà-Farràs, Florian Speelman
The BB84 monogamy-of-entanglement (MoE) game has numerous applications in quantum cryptography, including quantum key distribution, position verification, and unclonable encryption…
Arbitrarily Loss-Tolerant Quantum Position Verification in a Single Execution
Llorenç Escolà-Farràs, Boris Škorić, Florian Speelman
Quantum position verification (QPV) aims to certify the location of an untrusted prover, but faces two major obstacles: fundamentally, entanglement-based attacks and, experimentall…
Quantum position verification in one shot: parallel repetition of the -BB84 and -routing protocols
Llorenç Escolà-Farràs, Florian Speelman
Quantum position verification (QPV) aims to verify an untrusted prover's location by timing communication with them. To reduce uncertainty, it is desirable for this verification to…
A quantum cloning game with applications to quantum position verification
Llorenç Escolà-Farràs, Léo Colisson Palais, Florian Speelman
We introduce a quantum cloning game in which separate collaborative parties receive a classical input, determining which of them has to share a maximally entangled state with a…
Lossy-and-Constrained Extended Non-Local Games with Applications to Quantum Cryptography
Llorenç Escolà-Farràs, Florian Speelman
Extended non-local games are a generalization of monogamy-of-entanglement games, played by two quantum parties and a quantum referee that performs a measurement on their local quan…
Continuous-variable Quantum Position Verification secure against entangled attackers
Rene Allerstorfer, Llorenç Escolà-Farràs, Arpan Akash Ray +2
Motivated by the fact that coherent states may offer practical advantages it was recently shown that a continuous-variable (CV) quantum position verification (QPV) protocol using c…
Security of a Continuous-Variable based Quantum Position Verification Protocol
Rene Allerstorfer, Llorenç Escolà-Farràs, Arpan Akash Ray +3
In this work we study quantum position verification with continuous-variable quantum states. In contrast to existing discrete protocols, we present and analyze a protocol that util…
Single-qubit loss-tolerant quantum position verification protocol secure against entangled attackers
Llorenç Escolà-Farràs, Florian Speelman
Protocols for quantum position verification (QPV) which combine classical and quantum information are insecure in the presence of loss. We study the exact loss-tolerance of the mos…
Parallel repetition of local simultaneous state discrimination
Llorenç Escolà-Farràs, Jaròn Has, Maris Ozols +2
Local simultaneous state discrimination (LSSD) is a recently introduced problem in quantum information processing. Its classical version is a non-local game played by non-communica…