TY - JOUR AU - Gyöngyösi, László AU - Imre, Sándor TI - Networked Quantum Services JF - QUANTUM INFORMATION & COMPUTATION J2 - QUANTUM INFORM COMPUT VL - 25 PY - 2025 IS - 2 SP - 97 EP - 140 PG - 44 SN - 1533-7146 DO - 10.2478/qic-2025-0006 UR - https://m2.mtmt.hu/api/publication/36168056 ID - 36168056 N1 - Invited paper AB - The intense growth of quantum computation and communication allows the development of advanced solutions and services. Networked quantum services are provided for the users via quantum computers and quantum networking. Here, we review the fundamental concepts and recent achievements of networked quantum services. We present a comprehensive study of the state of the art, the different technologies, platforms, and applications. We analyze the implementation basis and identify key challenges. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László AU - Imre, Sándor TI - Subchannel Estimation and Subcarrier Detection for Multiuser Multicarrier Continuous-Variable Quantum Key Distribution JF - QUANTUM ENGINEERING J2 - QUANTUM ENG PY - 2024 SN - 2577-0470 UR - https://m2.mtmt.hu/api/publication/32870379 ID - 32870379 N1 - Még nem áll rendelkezésre a közlésre történő elfogadás tényét igazoló DOI. (Boros A. - 2024.06.04.) LA - English DB - MTMT ER - TY - CHAP AU - Gyöngyösi, László AU - Imre, Sándor ED - Donkor, E ED - Hayduk, M ED - Frey, MR ED - Lomonaco, SJ ED - Myers, JM TI - Problem solving dynamics for gate-model quantum computers T2 - Quantum Information Science, Sensing, and Computation XIV PB - International Society for Optical Engineering (SPIE) CY - Bellingham (WA) SN - 9781510650626 T3 - Proceedings of SPIE, ISSN 0277-786X ; 12093. PY - 2022 PG - 13 DO - 10.1117/12.2618654 UR - https://m2.mtmt.hu/api/publication/33095015 ID - 33095015 N1 - Funding Agency and Grant Number: Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019); National Research, Development and Innovation Fund [TUDFO/51757/2019-ITM]; National Research Development and Innovation Office of Hungary [2017-1.2.1-NKP-2017-00001]; Hungarian Scientific Research Fund [OTKA K112125]; BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC); Ministry of Innovation and Technology; National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary Funding text: The research reported in this paper has been supported by the Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019), by the National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM, Thematic Excellence Program), by the National Research Development and Innovation Office of Hungary (Project No. 2017-1.2.1-NKP-2017-00001), by the Hungarian Scientific Research Fund -OTKA K112125 and in part by the BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC), and by the Ministry of Innovation and Technology and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary. AB - In the noisy intermediate-scale quantum technological setting, the computational steps in a quantum computer are realized via unitary gates. Gate-model quantum computer architectures can be realized in near-term experimental implementations. Here, we study the model of adaptive problem solving dynamics in gate-model quantum computers. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László TI - Adaptive Problem Solving Dynamics in Gate-Model Quantum Computers JF - ENTROPY J2 - ENTROPY-SWITZ VL - 24 PY - 2022 IS - 9 PG - 21 SN - 1099-4300 DO - 10.3390/e24091196 UR - https://m2.mtmt.hu/api/publication/33071695 ID - 33071695 N1 - Funding Agency and Grant Number: Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019); National Research, Development and Innovation Fund (Thematic Excellence Program) [TUDFO/51757/2019-ITM]; National Research Development and Innovation Office of Hungary [2017-1.2.1-NKP-2017-00001]; Hungarian Scientific Research Fund [OTKA K-112125]; BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC); Ministry of Innovation and Technology; National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary Funding text: The research reported in this paper has been supported by the Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019), by the National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM, Thematic Excellence Program), by the National Research Development and Innovation Office of Hungary (Project No. 2017-1.2.1-NKP-2017-00001), by the Hungarian Scientific Research Fund -OTKA K-112125 and in part by the BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC), and by the Ministry of Innovation and Technology and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary. AB - Gate-model quantum computer architectures represent an implementable model used to realize quantum computations. The mathematical description of the dynamical attributes of adaptive problem solving and iterative objective function evaluation in a gate-model quantum computer is currently a challenge. Here, a mathematical model of adaptive problem solving dynamics in a gate-model quantum computer is defined. We characterize a canonical equation of adaptive objective function evaluation of computational problems. We study the stability of adaptive problem solving in gate-model quantum computers. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László AU - Imre, Sándor TI - Advances in the quantum internet JF - COMMUNICATIONS OF THE ACM J2 - COMMUN ACM VL - 65 PY - 2022 IS - 8 SP - 52 EP - 63 PG - 12 SN - 0001-0782 DO - 10.1145/3524455 UR - https://m2.mtmt.hu/api/publication/33061540 ID - 33061540 N1 - Export Date: 23 August 2022 CODEN: CACMA Correspondence Address: Gyongyosi, L.; Hungarian Academy of Sciences, Hungary; email: gyongyosi@hit.bme.hu LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László TI - Scalable Distributed Gate-Model Quantum Computers JF - BULLETIN OF THE AMERICAN PHYSICAL SOCIETY J2 - BULL AM PHYS SOC VL - 67 PY - 2022 IS - 3 SP - 10 EP - 11 PG - 2 SN - 0003-0503 UR - https://m2.mtmt.hu/api/publication/32871096 ID - 32871096 N1 - The research reported in this paper has been supported by the Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019), by the National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM, Thematic Excellence Program), by the National Research Development and Innovation Office of Hungary (Project No. 2017-1.2.1-NKP-2017-00001), by the Hungarian Scientific Research Fund - OTKA K-112125 and in part by the BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC), and by the Ministry of Innovation and Technology and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary. AB - A scalable model for a distributed quantum computation is a challenging problem due to the complexity of the problem space provided by the diversity of possible quantum systems, from small-scale quantum devices to large-scale quantum computers. Here, we define a model of scalable distributed gate-model quantum computation in near-term quantum systems of the NISQ (noisy intermediate scale quantum) technology era. We prove that the proposed architecture can maximize an objective function of a computational problem in a distributed manner. We study the impacts of decoherence on distributed objective function evaluation. LA - English DB - MTMT ER - TY - CHAP AU - Gyöngyösi, László AU - Imre, Sándor ED - Hemmer, Philip R ED - Migdall, Alan L TI - Resource optimization for the quantum Internet T2 - Quantum Computing, Communication, and Simulation II PB - International Society for Optical Engineering (SPIE) CY - Bellingham (WA) SN - 9781510649019 T3 - Proceedings of SPIE, ISSN 0277-786X ; 12015. PY - 2022 PG - 13 DO - 10.1117/12.2607957 UR - https://m2.mtmt.hu/api/publication/32728847 ID - 32728847 N1 - Funding Agency and Grant Number: Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019); National Research, Development and Innovation Fund [TUDFO/51757/2019-ITM]; National Research Development and Innovation Office of Hungary [2017-1.2.1-NKP-2017-00001]; Hungarian Scientific Research Fund [OTKA K-112125]; BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC); Ministry of Innovation and Technology; National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary Funding text: The research reported in this paper has been supported by the Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019), by the National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM, Thematic Excellence Program), by the National Research Development and Innovation Office of Hungary (Project No. 2017-1.2.1-NKP-2017-00001), by the Hungarian Scientific Research Fund -OTKA K-112125 and in part by the BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC), and by the Ministry of Innovation and Technology and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary. AB - The quantum Internet enables networking based on the fundamentals of quantum mechanics. Here, we define methods and procedures of resource prioritization and resource balancing for the quantum Internet. The aim of the proposed solutions is to optimize the resource allocation mechanisms and to reduce the resource consumptions of the network entities. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László AU - Imre, Sándor TI - Entanglement Availability Differentiation Service for the Quantum Internet (vol 8, 10620, 2018) JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 11 PY - 2021 IS - 1 PG - 4 SN - 2045-2322 DO - 10.1038/s41598-020-75950-5 UR - https://m2.mtmt.hu/api/publication/32403135 ID - 32403135 AB - An amendment to this paper has been published and can be accessed via a link at the top of the paper. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László AU - Imre, Sándor TI - Scalable distributed gate-model quantum computers JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 11 PY - 2021 IS - 1 PG - 28 SN - 2045-2322 DO - 10.1038/s41598-020-76728-5 UR - https://m2.mtmt.hu/api/publication/32331496 ID - 32331496 AB - A scalable model for a distributed quantum computation is a challenging problem due to the complexity of the problem space provided by the diversity of possible quantum systems, from small-scale quantum devices to large-scale quantum computers. Here, we define a model of scalable distributed gate-model quantum computation in near-term quantum systems of the NISQ (noisy intermediate scale quantum) technology era. We prove that the proposed architecture can maximize an objective function of a computational problem in a distributed manner. We study the impacts of decoherence on distributed objective function evaluation. LA - English DB - MTMT ER - TY - JOUR AU - Gyöngyösi, László TI - Approximation Method for Optimization Problems in Gate-Model Quantum Computers JF - CHAOS SOLITONS AND FRACTALS : X J2 - CHAOS SOLITONS AND FRACTALS : X VL - 7 PY - 2021 PG - 10 SN - 2590-0544 DO - 10.1016/j.csfx.2021.100066 UR - https://m2.mtmt.hu/api/publication/32210664 ID - 32210664 N1 - Department of Networked Systems and Services, Budapest University of Technology and Economics1117, Hungary MTA-BME Information Systems Research Group, Hungarian Academy of Sciences1051, Hungary Cited By :1 Export Date: 16 April 2024 Correspondence Address: Gyongyosi, L.; Department of Networked Systems and Services, Hungary Funding details: BME FIKP-MI/SC Funding details: 2017-1.2.1-NKP-2017-00001 Funding details: Hungarian Scientific Research Fund, OTKA, OTKA K-112125 Funding details: Magyar Tudományos Akadémia, MTA Funding details: Emberi Eroforrások Minisztériuma, EMMI Funding details: Nemzeti Kutatási, Fejlesztési és Innovaciós Alap, NKFIA, TUDFO/51757/2019-ITM Funding details: Innovációs és Technológiai Minisztérium Funding details: National Research, Development and Innovation Office Funding text 1: The research reported in this paper has been supported by the Hungarian Academy of Sciences (MTA Premium Postdoctoral Research Program 2019), by the National Research, Development and Innovation Fund (TUDFO/51757/2019-ITM, Thematic Excellence Program), by the National Research Development and Innovation Office of Hungary (Project No. 2017-1.2.1-NKP-2017-00001), by the Hungarian Scientific Research Fund - OTKA K-112125 and in part by the BME Artificial Intelligence FIKP grant of EMMI (Budapest University of Technology, BME FIKP-MI/SC), and by the Ministry of Innovation and Technology and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary. AB - In near-term quantum computers, the computations are realized via unitary operators. The optimization problem fed into the quantum computer sets an objective function that is to be estimated via several measurement rounds. Here, we define a procedure for objective function approximation in gate-model quantum computers. The proposed solution optimizes the process of objective function estimation for optimization problems in gate-model quantum computers and quantum devices. LA - English DB - MTMT ER -