161 citations · 396 across the 20 of their papers we have counts for
20 papers
Quantum Key Distribution Beyond Stationary Channels
Vaisakh Mannalath, Víctor Zapatero, Kiyoshi Tamaki +1
Quantum key distribution (QKD) over non-stationary channels, such as satellite links, is characterized by short, high-loss, and strongly fluctuating transmission windows that produ…
Finite-key security analysis of decoy-state QKD with source and detector imperfections
Xoel Sixto, Guillermo Currás-Lorenzo, Margarida Pereira +3
Decoy-state quantum key distribution (QKD) is the most widely adopted approach for overcoming the limitations of imperfect single-photon sources. However, existing security proofs…
Finite-key feasibility of geostationary quantum key distribution
Vaisakh Mannalath, Víctor Zapatero, Marcos Curty
Quantum key distribution (QKD) via geostationary Earth orbit (GEO) satellites offers a compelling route to continuous, continental-scale secure communications. However, operation i…
Device-independent quantum cryptography with input leakage
Víctor Zapatero, Marcos Curty
Device-independence is the gold standard of quantum cryptography. To meet this standard, a central assumption is that no information leakage occurs during protocol execution. We re…
Elementary Tail Bounds on the Hypergeometric Distribution
Vaisakh Mannalath, Víctor Zapatero, Marcos Curty
We use a simple method to derive two concentration bounds on the hypergeometric distribution. Comparison with existing results illustrates the advantage of these bounds across diff…
Quantum key distribution overcoming practical correlated intensity fluctuations
Jia-Xuan Li, Feng-Yu Lu, Ze-Hao Wang +8
Intensity correlations between neighboring pulses open a prevalent yet often overlooked security loophole in decoy-state quantum key distribution (QKD). As a solution, we present a…
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…
Intensity correlations in decoy-state BB84 quantum key distribution systems
Daniil Trefilov, Xoel Sixto, Víctor Zapatero +3
The decoy-state method is a prominent approach to enhance the performance of quantum key distribution (QKD) systems that operate with weak coherent laser sources. Due to the limite…
Sharp finite statistics for quantum key distribution
Vaisakh Mannalath, Víctor Zapatero, Marcos Curty
The performance of quantum key distribution (QKD) heavily depends on statistical inference. For a broad class of protocols, the central statistical task is a random sampling proble…
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…
Finite-key security of passive quantum key distribution
Víctor Zapatero, Marcos Curty
The passive approach to quantum key distribution (QKD) consists of eliminating all optical modulators and random number generators from QKD systems, in so reaching an enhanced simp…
Experimental demonstration of fully passive quantum key distribution
Feng-Yu Lu, Ze-Hao Wang, Víctor Zapatero +10
The passive approach to quantum key distribution (QKD) consists of removing all active modulation from the users' devices, a highly desirable countermeasure to get rid of modulator…
Advances in device-independent quantum key distribution
Víctor Zapatero, Tim van Leent, Rotem Arnon +4
Device-independent quantum key distribution (DI-QKD) provides the gold standard for secure key exchange. Not only it allows for information-theoretic security based on quantum mech…
A fully passive transmitter for decoy-state quantum key distribution
Víctor Zapatero, Wenyuan Wang, Marcos Curty
A passive quantum key distribution (QKD) transmitter generates the quantum states prescribed by a QKD protocol at random, combining a fixed quantum mechanism and a post-selection s…
Fully-Passive Quantum Key Distribution
Wenyuan Wang, Rong Wang, Victor Zapatero +4
Passive implementations of quantum key distribution (QKD) sources are highly desirable as they eliminate side-channels that active modulators might introduce. Up till now, passive…
Security of decoy-state quantum key distribution with correlated intensity fluctuations
Xoel Sixto, Víctor Zapatero, Marcos Curty
One of the most prominent techniques to enhance the performance of practical quantum key distribution (QKD) systems with laser sources is the decoy-state method. Current decoy-stat…
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…
Experimental quantum key distribution secure against malicious devices
Wei Li, Victor Zapatero, Hao Tan +9
The fabrication of quantum key distribution (QKD) systems typically involves several parties, thus providing Eve with multiple opportunities to meddle with the devices. As a conseq…
Secure quantum key distribution with a subset of malicious devices
Víctor Zapatero, Marcos Curty
The malicious manipulation of quantum key distribution (QKD) hardware is a serious threat to its security, as, typically, neither end users nor QKD manufacturers can validate the i…
Long-distance device-independent quantum key distribution
Víctor Zapatero, Marcos Curty
Besides being a beautiful idea, device-independent quantum key distribution (DIQKD) is probably the ultimate solution to defeat quantum hacking. To guarantee security, it requires,…