EPJQT - EPJ Quantum Technology

Open Access

Research

Hybrid quantum neural networks with variational quantum regressor for enhancing QSPR modeling of CO₂-capturing amine

Hyein Cho, Jeonghoon Kim, Kyoung Tai No and Hocheol Lim

Published online: 23 June 2025

DOI: 10.1140/epjqt/s40507-025-00385-8

Open Access

Research

Unified hybrid quantum classical neural network framework for detecting distributed denial of service and Android mobile malware attacks

Sridevi S, Indira B, Geetha S, Balachandran S, Gorkem Kar and Shangirne Kharbanda

Published online: 20 June 2025

DOI: 10.1140/epjqt/s40507-025-00380-z

Open Access

Research

Transformer-based quantum error decoding enhanced by QGANs: towards scalable surface code correction algorithms

Cewen Tian, Zaixu Fan, Xiaoxuan Guo, Xinying Song and Yanbing Tian

Published online: 19 June 2025

DOI: 10.1140/epjqt/s40507-025-00383-w

Open Access

Research

Efficient reconciliation of continuous variable quantum key distribution with multiplicatively repeated non-binary LDPC codes

Jesus Martinez-Mateo and David Elkouss

Published online: 11 June 2025

DOI: 10.1140/epjqt/s40507-025-00376-9

Open Access

Research

Key reconciliation protocol for quantum key distribution

Neha Sharma, Vikas Saxena, Vinay Chamola and Vikas Hassija

Published online: 10 February 2025

DOI: 10.1140/epjqt/s40507-025-00319-4

Open Access

Research

Tight upper bound of the maximal quantum violation of Gisin’s elegant Bell inequality and its application in randomness certification

Dan-Dan Hu, Meng-Yan Li, Fen-Zhuo Guo, Yu-Kun Wang, Hai-Feng Dong and Fei Gao

Published online: 11 February 2025

DOI: 10.1140/epjqt/s40507-025-00325-6

Open Access

Research

Analysis of converting -circuit into -circuit

Qing-bin Luo, Lang Ding, Guo-wu Yang and Xiao-yu Li

Published online: 28 January 2025

DOI: 10.1140/epjqt/s40507-025-00317-6

Open Access

Research

Efficient realization of quantum algorithms with qudits

Anastasiia S. Nikolaeva, Evgeniy O. Kiktenko and Aleksey K. Fedorov

Published online: 26 June 2024

DOI: 10.1140/epjqt/s40507-024-00250-0

Open Access

Review

Neutral atom quantum computing hardware: performance and end-user perspective

Karen Wintersperger, Florian Dommert, Thomas Ehmer, Andrey Hoursanov, Johannes Klepsch, Wolfgang Mauerer, Georg Reuber, Thomas Strohm, Ming Yin and Sebastian Luber

Published online: 28 August 2023

DOI: 10.1140/epjqt/s40507-023-00190-1

Open Access

Research

Quantum encryption in phase space with displacement operators

Randy Kuang and Adrian Chan

Published online: 29 June 2023

DOI: 10.1140/epjqt/s40507-023-00183-0

Open Access

Research

A Bayesian-network-based quantum procedure for failure risk analysis

Gines Carrascal, Guillermo Botella, Alberto del Barrio and David Kremer

Published online: 08 May 2023

DOI: 10.1140/epjqt/s40507-023-00171-4

Open Access

Research

Quantum encryption of superposition states with quantum permutation pad in IBM quantum computers

Maria Perepechaenko and Randy Kuang

Published online: 17 February 2023

DOI: 10.1140/epjqt/s40507-023-00164-3

Open Access

Research

Polarization compensation method based on the wave plate group in phase mismatch for free-space quantum key distribution

Yongjian Tan, Liang Zhang, Tianxing Sun, Zhihua Song, Jincai Wu and Zhiping He

Published online: 13 February 2023

DOI: 10.1140/epjqt/s40507-023-00163-4

Open Access

Comment

Modelling carbon capture on metal-organic frameworks with quantum computing

Gabriel Greene-Diniz, David Zsolt Manrique, Wassil Sennane, Yann Magnin, Elvira Shishenina, Philippe Cordier, Philip Llewellyn, Michal Krompiec, Marko J. Rančić and David Muñoz Ramo

Published online: 16 December 2022

DOI: 10.1140/epjqt/s40507-022-00155-w

Open Access

Research

The landscape of the quantum start-up ecosystem

Zeki Can Seskir, Ramis Korkmaz and Arsev Umur Aydinoglu

Published online: 18 October 2022

DOI: 10.1140/epjqt/s40507-022-00146-x

Open Access

Research

Quantum encryption with quantum permutation pad in IBMQ systems

Randy Kuang and Maria Perepechaenko

Published online: 12 October 2022

DOI: 10.1140/epjqt/s40507-022-00145-y

Open Access

Review

Semiconductor-based electron flying qubits: review on recent progress accelerated by numerical modelling

Hermann Edlbauer, Junliang Wang, Thierry Crozes, Pierre Perrier, Seddik Ouacel, Clément Geffroy, Giorgos Georgiou, Eleni Chatzikyriakou, Antonio Lacerda-Santos, Xavier Waintal et al. (13 more)

Published online: 10 August 2022

DOI: 10.1140/epjqt/s40507-022-00139-w

Open Access

Research

Quantum pricing with a smile: implementation of local volatility model on quantum computer

Kazuya Kaneko, Koichi Miyamoto, Naoyuki Takeda and Kazuyoshi Yoshino

Published online: 12 February 2022

DOI: 10.1140/epjqt/s40507-022-00125-2

Open Access

Research

A case study of variational quantum algorithms for a job shop scheduling problem

David Amaro, Matthias Rosenkranz, Nathan Fitzpatrick, Koji Hirano and Mattia Fiorentini

Published online: 10 February 2022

DOI: 10.1140/epjqt/s40507-022-00123-4

Open Access

Research

Industry quantum computing applications

Quantum Technology and Application Consortium – QUTAC, Andreas Bayerstadler, Guillaume Becquin, Julia Binder, Thierry Botter, Hans Ehm, Thomas Ehmer, Marvin Erdmann, Norbert Gaus, Philipp Harbach et al. (21 more)

Published online: 13 November 2021

DOI: 10.1140/epjqt/s40507-021-00114-x

Open Access

Review

Quantum technology for military applications

Michal Krelina

Published online: 06 November 2021

DOI: 10.1140/epjqt/s40507-021-00113-y

Open Access

Research

SpinQ Gemini: a desktop quantum computing platform for education and research

Shi-Yao Hou, Guanru Feng, Zipeng Wu, Hongyang Zou, Wei Shi, Jinfeng Zeng, Chenfeng Cao, Sheng Yu, Zikai Sheng, Xin Rao et al. (6 more)

Published online: 22 July 2021

DOI: 10.1140/epjqt/s40507-021-00109-8

Open Access

Research

Quantum technologies in the telecommunications industry

Vicente Martin, Juan Pedro Brito, Carmen Escribano, Marco Menchetti, Catherine White, Andrew Lord, Felix Wissel, Matthias Gunkel, Paulette Gavignet, Naveena Genay et al. (6 more)

Published online: 22 July 2021

DOI: 10.1140/epjqt/s40507-021-00108-9

Open Access

Review

Accelerating quantum computer developments

Garrelt J. N. Alberts, M. Adriaan Rol, Thorsten Last, Benno W. Broer, Cornelis C. Bultink, Matthijs S. C. Rijlaarsdam and Amber E. Van Hauwermeiren

Published online: 08 July 2021

DOI: 10.1140/epjqt/s40507-021-00107-w

Open Access

Letter

A low cost, short range quantum key distribution system

David Lowndes, Stefan Frick, Andy Hart and John Rarity

Published online: 26 May 2021

DOI: 10.1140/epjqt/s40507-021-00101-2

Open Access

Review

Towards security recommendations for public-key infrastructures for production environments in the post-quantum era

Sergey E. Yunakovsky, Maxim Kot, Nikolay Pozhar, Denis Nabokov, Mikhail Kudinov, Anton Guglya, Evgeniy O. Kiktenko, Ekaterina Kolycheva, Alexander Borisov and Aleksey K. Fedorov

Published online: 19 May 2021

DOI: 10.1140/epjqt/s40507-021-00104-z

Open Access

Research

Qualifying quantum approaches for hard industrial optimization problems. A case study in the field of smart-charging of electric vehicles

Constantin Dalyac, Loïc Henriet, Emmanuel Jeandel, Wolfgang Lechner, Simon Perdrix, Marc Porcheron and Margarita Veshchezerova

Published online: 17 May 2021

DOI: 10.1140/epjqt/s40507-021-00100-3

Open Access

Letter

Startup Qilimanjaro—towards a European full-stack coherent quantum annealer platform

V. Canivell, P. Forn-Díaz, A. Garcia-Saez and R. Sagastizabal

Published online: 27 February 2021

DOI: 10.1140/epjqt/s40507-021-00094-y

Open Access

Commentary

Path to European quantum unicorns

Markku Räsänen, Henrikki Mäkynen, Mikko Möttönen and Jan Goetz

Published online: 25 February 2021

DOI: 10.1140/epjqt/s40507-021-00095-x

Open Access

Commentary

Commercial applications of quantum computing

Francesco Bova, Avi Goldfarb and Roger G. Melko

Published online: 29 January 2021

DOI: 10.1140/epjqt/s40507-021-00091-1

EPJ

EPJ Quantum Technology

Special Issue on Quantum Industry

Hybrid quantum neural networks with variational quantum regressor for enhancing QSPR modeling of CO₂-capturing amine

Unified hybrid quantum classical neural network framework for detecting distributed denial of service and Android mobile malware attacks

Transformer-based quantum error decoding enhanced by QGANs: towards scalable surface code correction algorithms

Efficient reconciliation of continuous variable quantum key distribution with multiplicatively repeated non-binary LDPC codes

Key reconciliation protocol for quantum key distribution

Tight upper bound of the maximal quantum violation of Gisin’s elegant Bell inequality and its application in randomness certification

Analysis of converting -circuit into -circuit

Efficient realization of quantum algorithms with qudits

Neutral atom quantum computing hardware: performance and end-user perspective

Quantum encryption in phase space with displacement operators

A Bayesian-network-based quantum procedure for failure risk analysis

Quantum encryption of superposition states with quantum permutation pad in IBM quantum computers

Polarization compensation method based on the wave plate group in phase mismatch for free-space quantum key distribution

Modelling carbon capture on metal-organic frameworks with quantum computing

The landscape of the quantum start-up ecosystem

Quantum encryption with quantum permutation pad in IBMQ systems

Semiconductor-based electron flying qubits: review on recent progress accelerated by numerical modelling

Quantum pricing with a smile: implementation of local volatility model on quantum computer

A case study of variational quantum algorithms for a job shop scheduling problem

Industry quantum computing applications

Quantum technology for military applications

SpinQ Gemini: a desktop quantum computing platform for education and research

Quantum technologies in the telecommunications industry

Accelerating quantum computer developments

A low cost, short range quantum key distribution system

Towards security recommendations for public-key infrastructures for production environments in the post-quantum era

Qualifying quantum approaches for hard industrial optimization problems. A case study in the field of smart-charging of electric vehicles

Startup Qilimanjaro—towards a European full-stack coherent quantum annealer platform

Path to European quantum unicorns

Commercial applications of quantum computing

Conference announcements