1.2k citations · 1.8k across the 11 of their papers we have counts for
8 papers · 1 filter
Dead-time optimization to increase secure distance range in prepare and measure quantum key distribution protocols
Carlos Wiechers, J. L. Lucio, Xóchitl Sánchez-Lozano +2
Afterpulsing is a factor limiting the distance over which discrete-variable quantum key distribution systems are secure, and a common feature in single-photon detectors. The releva…
800 nm pumped SPDC from chirped crystals
X. Sánchez-Lozano, C. Wiechers, J. L. Lucio
We consider crystal chirp effects on SPDC when pumping at 800 nm. The typical distribution produced in frequency-momentum space is a pop tab-like structure which turns out to be su…
Device calibration impacts security of quantum key distribution
Nitin Jain, Christoffer Wittmann, Lars Lydersen +5
Characterizing the physical channel and calibrating the cryptosystem hardware are prerequisites for establishing a quantum channel for quantum key distribution (QKD). Moreover, an…
Reply to "Avoiding the Detector Blinding Attack on Quantum Cryptography"
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
This is a reply to the comment by Yuan et al. [arXiv:1009.6130v1] on our publication [arXiv:1008.4593].
After-gate attack on a quantum cryptosystem
Carlos Wiechers, Lars Lydersen, Christoffer Wittmann +5
We present a method to control the detection events in quantum key distribution systems that use gated single-photon detectors. We employ bright pulses as faked states, timed to ar…
Thermal blinding of gated detectors in quantum cryptography
Lars Lydersen, Carlos Wiechers, Christoffer Wittmann +3
It has previously been shown that the gated detectors of two commercially available quantum key distribution (QKD) systems are blindable and controllable by an eavesdropper using c…