108 citations · 395 across the 18 of their papers we have counts for
18 papers
Deterministic QKD source robust against side-channel attacks
Kiyoshi Tamaki, Marcos Curty, Akihiro Mizutani +1
Quantum key distribution (QKD) is secure in principle, but practical security can be undermined by discrepancies between real devices and the idealized models assumed in security p…
Phase-error estimation for quantum key distribution with leaky receivers
Álvaro Navarrete, Margarida Pereira, Guillermo Currás-Lorenzo +3
Practical quantum key distribution (QKD) receivers may leak information about their measurement outcomes and settings to the channel (e.g., through detector backflashes or back-ref…
Fault-Tolerant Quantum Key Distribution: Enabling Overclocked Modulation
Feng-Yu Lu, Jia-Xuan Li, Ze-Hao Wang +8
Implementation security, higher generation rate, and lower cost are primary missions in the domain of quantum key distributions in recent years. However, simultaneously achieving r…
Numerical security analysis for quantum key distribution with partial state characterization
Guillermo Currás-Lorenzo, Álvaro Navarrete, Javier Núñez-Bon +2
Numerical security proofs offer a versatile approach for evaluating the secret-key generation rate of quantum key distribution (QKD) protocols. However, existing methods typically…
Security of practical modulator-free quantum key distribution
Álvaro Navarrete, Víctor Zapatero, Marcos Curty
Recent advancements in quantum key distribution have led to the development of various modulator-free transmitters. Among their advantages, these transmitters offer enhanced securi…
Quantum key distribution with imperfectly isolated devices
Xoel Sixto, Álvaro Navarrete, Margarida Pereira +3
Most security proofs of quantum key distribution (QKD) assume that there is no unwanted information leakage about the state preparation process. However, this assumption is impossi…
Hacking coherent-one-way quantum key distribution with present-day technology
Javier Rey-Domínguez, Álvaro Navarrete, Peter van Loock +1
Recent results have shown that the secret-key rate of coherent-one-way (COW) quantum key distribution (QKD) scales quadratically with the system's transmittance, thus rendering thi…
Implementation security in quantum key distribution
Víctor Zapatero, Álvaro Navarrete, Marcos Curty
The problem of implementation security in quantum key distribution (QKD) refers to the difficulty of meeting the requirements of mathematical security proofs in real-life QKD syste…
Modified BB84 quantum key distribution protocol robust to source imperfections
Margarida Pereira, Guillermo Currás-Lorenzo, Álvaro Navarrete +4
The Bennett-Brassard 1984 (BB84) protocol is the most widely implemented quantum key distribution (QKD) scheme. However, despite enormous theoretical and experimental efforts in th…
Improved Finite-Key Security Analysis of Quantum Key Distribution Against Trojan-Horse Attacks
Álvaro Navarrete, Marcos Curty
Most security proofs of quantum key distribution (QKD) disregard the effect of information leakage from the users' devices, and, thus, do not protect against Trojan-horse attacks (…
Security of quantum key distribution with intensity correlations
Víctor Zapatero, Álvaro Navarrete, Kiyoshi Tamaki +1
The decoy-state method in quantum key distribution (QKD) is a popular technique to approximately achieve the performance of ideal single-photon sources by means of simpler and prac…
Finite-key analysis of loss-tolerant quantum key distribution based on random sampling theory
Guillermo Currás-Lorenzo, Álvaro Navarrete, Margarida Pereira +1
The core of security proofs of quantum key distribution (QKD) is the estimation of a parameter that determines the amount of privacy amplification that the users need to apply in o…
Practical Quantum Key Distribution Secure Against Side-Channels
Álvaro Navarrete, Margarida Pereira, Marcos Curty +1
There is a big gap between theory and practice in quantum key distribution (QKD) because real devices do not satisfy the assumptions required by the security proofs. Here, we close…
Tight finite-key security for twin-field quantum key distribution
Guillermo Currás-Lorenzo, Alvaro Navarrete, Koji Azuma +3
Quantum key distribution (QKD) offers a reliable solution to communication problems that require long-term data security. For its widespread use, however, the rate and reach of QKD…
Asymmetric twin-field quantum key distribution
Federico Grasselli, Alvaro Navarrete, Marcos Curty
Twin-Field (TF) quantum key distribution (QKD) is a major candidate to be the new benchmark for far-distance QKD implementations, since its secret key rate can overcome the repeate…
Laser seeding attack in quantum key distribution
Anqi Huang, Álvaro Navarrete, Shi-Hai Sun +3
Quantum key distribution (QKD) based on the laws of quantum physics allows the secure distribution of secret keys over an insecure channel. Unfortunately, imperfect implementations…
Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors
Álvaro Navarrete, Wenyuan Wang, Feihu Xu +1
The experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include…
Spatial solitons in thermo-optical media from the nonlinear Schrodinger-Poisson equation and dark matter analogues
Alvaro Navarrete, Angel Paredes, Jose R. Salgueiro +1
We analyze theoretically the Schrodinger-Poisson equation in two transverse dimensions in the presence of a Kerr term. The model describes the nonlinear propagation of optical beam…