1.9k citations · 5.5k across the 58 of their papers we have counts for
62 papers
Squeezed- and coherent-state quantum key distribution over a deployed hybrid fibre-free-space channel
Adnan A. E. Hajomer, Huy Q. Nguyen, Ivan Derkach +14
Quantum networks will combine optical fibre with free-space links, yet continuous-variable quantum key distribution (CV-QKD) has been developed predominantly for one medium or the…
Adaptable Continuous Variable Quantum Network with Finite Size Security
Runjia Zhang, Akash nag Oruganti, Huy Q. Nguyen +5
In recent years, continuous-variable quantum key distribution (CV-QKD) has become a promising paradigm for enabling secure communication among multiple end users sharing the same t…
Quantum-enhanced biosensing enables earlier detection of bacterial growth
Rayssa B. de Andrade, Anne Egholm Høgh, Gaetana Spedalieri +4
Rapid detection of bacterial growth is crucial in clinical, food safety, and environmental contexts, yet conventional optical methods are limited by noise and require hours of incu…
Practical continuous-variable quantum key distribution with squeezed light
Huy Q. Nguyen, Ivan Derkach, Akash nag Oruganti +6
Continuous-variable quantum key distribution (CV-QKD) has gathered significant interest for its potential to achieve high secret key rates and seamless integration with existing op…
Chip-Based 16 GBaud Continuous-Variable Quantum Key Distribution
Adnan A. E. Hajomer, Axl Bomhals, CÉdric Bruynsteen +5
Quantum key distribution (QKD) stands as the most successful application of quantum information science, providing information-theoretic security for key exchange. While it has evo…
Coexistence of continuous-variable quantum key distribution and classical data over 120-km fiber
Adnan A. E. Hajomer, Ivan Derkach, Vladyslav C. Usenko +2
Integrating quantum key distribution (QKD) with classical data transmission over the same fiber is crucial for scalable quantum-secured communication. However, noise from classical…
Finite-size security of continuous-variable quantum key distribution with imperfect heterodyne measurement
Adnan A. E. Hajomer, Akash Nag Oruganti, Ivan Derkach +3
Continuous-variable quantum key distribution (CVQKD) using coherent states and heterodyne detection enables secure quantum communication based on technology that has large similari…
Continuous-variable quantum communication
Vladyslav C. Usenko, Antonio Acín, Romain Alléaume +8
Tremendous progress in experimental quantum optics in recent decades has enabled the advent of quantum technologies, one of which is quantum communication. Aimed at novel methods f…
An Overview of CV-MDI-QKD
Alasdair I. Fletcher, Cillian Harney, Masoud Ghalaii +6
As quantum key distribution (QKD) emerges as a robust defense against quantum computer threats, significant advancements have been realized by researchers. A pivotal focus has been…
Digital reconstruction of squeezed light for quantum information processing
Huy Q. Nguyen, Ivan Derkach, Adnan A. E. Hajomer +5
Squeezed light plays a vital role in quantum information processing. By nature, it is highly sensitive, which presents significant practical challenges, particularly in remote dete…
Experimental composable key distribution using discrete-modulated continuous variable quantum cryptography
Adnan A. E. Hajomer, Florian Kanitschar, Nitin Jain +6
Establishing secure data communication necessitates secure key exchange over a public channel. Quantum key distribution (QKD), which leverages the principles of quantum physics, ca…
Composable Continuous-Variable Multi-User QKD with Discrete Modulation: Theory and Implementation
Florian Kanitschar, Adnan A. E. Hajomer, Michael Hentschel +2
Establishing scalable, secure quantum networks requires advancing beyond conventional point-to-point quantum key distribution (QKD) protocols toward point-to-multipoint QKD protoco…
Continuous-variable quantum passive optical network
Adnan A. E. Hajomer, Ivan Derkach, Radim Filip +3
Building scalable and secure quantum networks with many users has a high application potential but also holds many practical challenges. A significant stride in this pursuit involv…
Future proofing network encryption technology with continuous-variable quantum key distribution
Nitin Jain, Hou-Man Chin, Adnan A. E. Hajomer +6
We demonstrate a proof-of-concept establishment of quantum-secure data transfer links in field trials at two locations in Denmark: on the campus of Technical University of Denmark…
Variational quantum algorithm for enhanced continuous variable optical phase sensing
Jens A. H. Nielsen, Mateusz Kicinski, Tummas N. Arge +7
Variational quantum algorithms (VQAs) are hybrid quantum-classical approaches used for tackling a wide range of problems on noisy intermediate-scale quantum (NISQ) devices. Testing…
Multi-Gbps quantum randomness source based on direct detection and vacuum states
Dino Solar Nikolic, Cosmo Lupo, Runjia Zhang +3
Quantum random number generators (QRNGs) based on quadrature measurements of the vacuum have so far used balanced homodyne detection to obtain a source of high entropy. Here we pro…
Quantum key distribution for data center security -- a feasibility study
Nitin Jain, Ulrich Hoff, Marco Gambetta +2
Data centers are nowadays referred to as the digital world's cornerstone. Quantum key distribution (QKD) is a method that solves the problem of distributing cryptographic keys betw…
Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing
Renato Domeneguetti, Michael Stefszky, Harald Herrmann +4
This work reports a fully guided setup for single-mode squeezing generation on integrated titanium-indiffused periodically poled nonlinear resonators. A continuous wave laser beam…
Continuous-Variable Quantum Key Distribution at 10 GBaud using an Integrated Photonic-Electronic Receiver
Adnan A. E. Hajomer, Cedric Bruynsteen, Ivan Derkach +6
Quantum key distribution (QKD) is a well-known application of quantum information theory that guarantees information-theoretically secure key exchange. As QKD becomes more and more…
Long-distance continuous-variable quantum key distribution over 100 km fiber with local local oscillator
Adnan A. E. Hajomer, Ivan Derkach, Nitin Jain +3
Quantum key distribution (QKD) enables two remote parties to share encryption keys with security based on the laws of physics. Continuous variable (CV) QKD with coherent states and…
Squeezed Light Coexistence with Classical Communication over 10 km Optical Fiber
Adnan A. E. Hajomer, Huy Q. Nguyen, Melis Pahalı +2
We report the first coexistence experiment of 1550 nm single-mode squeezed states of light with a 1310 nm classical telecom channel over a 10 km fiber channel while measuring squee…
High-rate continuous-variable measurement device-independent quantum key distribution with finite-size security
Adnan A. E. Hajomer, Ulrik L Andersen, Tobias Gehring
Building scalable and secure quantum networks requires advanced quantum key distribution (QKD) protocols that support multi-user connectivity. Continuous-variable (CV) measurement-…
Machine learning based joint polarization and phase compensation for CV-QKD
Hou-Man Chin, Adnan E. Hajomer, Nitin Jain +2
We investigated a machine learning method for joint estimation of polarization and phase for use in a Gaussian modulated CV-QKD system, over an 18 hour period measured on a install…
High-rate continuous-variable measurement-device-independent quantum key distribution
Adnan A. E. Hajomer, Huy Q. Nguyen, Tobias Gehring
We report the first experiment of continuous-variable measurement-device-independent quantum key distribution that enables secret key generation at a symbol rate of 5 MBaud without…