This two-volume set CCIS 2743 and 2744 constitutes the refereed proceedings of the 1st International Conference on Quantum Engineering Sciences and Technologies for Industry and Services, QUEST-IS 2025, held in Paris, France, during December 14, 2025.

The 68 full papers included in this book were carefully reviewed and selected from 120 submissions. They were organized in topical sections as follows:

Part I: Enabling Technologies; Quantum Sensors Applications; Quantum Sensors in Detection and Sensing; Quantum Communications Test Platforms for Qkd; Quantum Key Distribution; Towards A Quantum Internet Infrastructure; Quantum Algorithms, Computing & Simulation Benchmarking: Methods & Applications; Error Mitigation & Fidelity; and Quantum Algorithms for Finance & Industry

Part II: Quantum Algorithms, Computing & Simulation Quantum Algorithms for Finance & Industry; Scheduling, Logistics & Complex Systems; Quantum Machine Learning; Physics & Engineering Applications; Simulation & Quantum Chemistry; Hardware & Architectures; and Specialized Applications & Security.

Contributions by leading scientists and engineers Research with critical implications for society and business Papers address foundational and application issues

Inhalt

.-Thales' Roadmap and Product Innovations in Cryogenics for Quantum Applications.
.-Preliminary Demonstration of Spin Qubit Control Using the Quantum Instrumentation Control Kit (QICK).
.-Microwave interconnectivity as a scalable solution for Quantum Computing: Engineering, Measurement, and Standardization.
.-Scalable Photonic Control System for Large Scale Quantum Computers.
.-Design Concept of NV-Center-Based Wideband Current Comparators.
.-Detection of grinding burns with NV center in diamond magnetometer.
.-Uncut Gem - An Open-Source Hackable Quantum Sensor.
.-Molecular Spectroscopy Experiments for Direct Detection of Dark Matter.
.-The Gilles Brassard Laboratory: A Research Platform for Secure Quantum-Era Communications.
.-METROLOGY FOR REAL-WORLD QKD.
.-Development of National Quantum-Safe Network Testbed in Singapore.
.-QuaNTUM: A Modular Quantum Communication Testbed for Scalable Fiber and Satellite Integration.
.-Network-wide Quantum Key Distribution with Onion Routing Relay.
.-Complete centralized architecture for QKD networks.
.-QKD-Encryption of Air Traffic Control Data with Negligible Extra Latency.
.-Multi-Level Parameter Estimation for Receiver Noise in CV-QKD.
.-Crystalline waveguides for efficient integrated quantum memories.
.-Entanglement routing in large-scale quantum networks with ground-space interconnection.
.-Overview of NCIA's activities in Quantum Communications.
.-On the road to satellite-based Quantum Information Networks: Hong-Ou-Mandel effect with pulsed coherent states.
.-BenchQC - Scalable and modular benchmarking of industrial quantum computing applications.
.-BACQ - Application-oriented Benchmarks for Quantum Computing.
.-Quant²AI An End-to-End Quantum AI Benchmarking Framework for Both Researchers and Practitioners.
.-Application of Multi-Criteria Decision Aiding to Quantum Benchmarking: Some Results on Scale invariance.
.-Benchmark of MHT algorithms on Quantum Computer.
.-The Maximum Cardinality Matching problem G_n series as a benchmark for quantum computers.
.-Benchmarking data encoding methods in Quantum Machine Learning.
.-Quantum Emulator Benchmarking Made Easy.
.-Evaluating Quantum Wire Cutting for QAOA: Performance Benchmarks in Ideal and Noisy Environments.
.-Quantum Minimal Learning Machine: A Fidelity-Based Approach to Error Mitigation.
.-No Scratch Quantum Computing by Reducing Qubit Overhead for Efficient Arithmetics.
.-Optimizing Qubit Routing with Bridge Gates: Extending Quantum Circuit Efficiency Across Arbitrary Distances.
.-Resource Estimation for Matrix Inversion via QSVT with the Clifford+T Gate Set.
.-Q-PORT: Quantum Portfolio Optimization with Resource-Efficient Encoding and Scalability Analysis.
.-Quantum Amplitude Estimation in Practice: A Case Study in Option Pricing.