795 citations · 1.5k across the 38 of their papers we have counts for
40 papers
Lie algebraic invariants in quantum linear optics
Pablo V. Parellada, Vicent Gimeno i Garcia, Julio José Moyano-Fernández +1
Quantum linear optics without post-selection is not powerful enough to produce any quantum state from a given input state. This limits its utility since some applications require e…
Routing and wavelength assignment in quantum key distribution networks: power control heuristics for quantum-classical multiplexing
Lidia Ruiz, Juan Carlos Garcia-Escartin
As quantum key distribution networks grow in size and complexity, resource assignment has become increasingly important. In passive optical networks without wavelength conversion,…
Finding eigenvectors with a quantum variational algorithm
Juan Carlos Garcia-Escartin
This paper presents a hybrid variational quantum algorithm that finds a random eigenvector of a unitary matrix with a known quantum circuit. The algorithm is based on the SWAP test…
No-go theorems for photon state transformations in quantum linear optics
Pablo V. Parellada, Vicent Gimeno i Garcia, Julio-José Moyano-Fernández +1
We give a necessary condition for photon state transformations in linear optical setups preserving the total number of photons. From an analysis of the algebra describing the quant…
A quantum algorithm for computing the Carmichael function
Juan Carlos Garcia-Escartin
Quantum computers can solve many number theory problems efficiently. Using the efficient quantum algorithm for order finding as an oracle, this paper presents an algorithm that com…
Quantum collision finding for homomorphic hash functions
Juan Carlos Garcia-Escartin, Vicent Gimeno, Julio José Moyano-Fernández
Hash functions are a basic cryptographic primitive. Certain hash functions try to prove security against collision and preimage attacks by reductions to known hard problems. These…