In this proceedings we describe the current development status and recent technical achievements of Qibo, an open-source framework for quantum simulation. After a concise overview of the project goal, we introduce the modular layout for backend abstraction released in version 0.1.7. We discuss the advantages of each backend choice with particular emphasis on hardware accelerators for quantum state vector simulation. Finally, we summarize the primitives and models currently available.
The two essential ideas in this paper are, on the one hand, that a considerable amount of the power of quantum computation may be obtained by adding to a classical computer a few specialized quantum modules and, on the other hand, that such modules may be constructed out of classical systems obeying quantum-like equations where a space coordinate is the evolution parameter (thus playing the role of time in the quantum algorithms).
On the Impact of Classical and Quantum Communication Networks Upon Modular Quantum Computing Architecture System Performance
Universitat Politècnica de Catalunya（加泰罗尼亚理工大学）；Delft University of Technology（代尔夫特理工大学）；Ecole Polytechnique Fédérale de Lausanne（洛桑联邦理工学院）；University of Siegen（锡根大学）；University of Catania（卡塔尼亚大学）；Equal1 Labs（Equal1实验室）；University College Dublin（都柏林大学学院）；Barcelona Supercomputing Center（巴塞罗那超级计算中心）；Qilimanjaro Quantum Tech（基利马扎罗量子技术）；Universitat Politècnica de València（瓦伦西亚理工大学）
Beyond Monolithic Scaling: Modularity and Heterogeneity as an Architectural Imperative for Utility-Scale Quantum Computing
Yangtze River Delta Industrial Innovation Center of Quantum Science and Technology（长三角量子科学与技术产业创新中心）；China Academy of Electronics and Information Technology（中国电子科技集团公司第二十七研究所）
Modular fault-tolerant quantum computing on a non-CSS code
Universität Innsbruck（因斯布鲁克大学）；Forschungszentrum Jülich（于利希研究中心）；RWTH Aachen University（亚琛工业大学）；Universidad Autonoma de Madrid（马德里自治大学）；Alpine Quantum Technologies GmbH（阿尔卑斯量子技术公司）
Useful fault-tolerant quantum computers require very large numbers of physical qubits. Quantum computers are often designed as arrays of static qubits executing gates and measurements. Photonic qubits require a different approach. In photonic fusion-based quantum computing (FBQC), the main hardware components are resource-state generators (RSGs) and fusion devices connected via waveguides and switches. RSGs produce small entangled states of a few photonic qubits, whereas fusion devices perform entangling measurements between different resource states, thereby executing computations. In additio…
A lot of progress has been made in recent times for simulating accurately the ground state energy of small molecules and their potential energy surface, using quantum-classical hybrid computing architecture. While these single point energy calculations are a significant milestone for quantum chemistry simulation on quantum hardware, a similarly important application is to trace accurately the reaction pathway of various chemical transformations. Such computations require accurate determination of the equilibrium or lowest energy molecular geometry, either by computing energy gradients with res…
Fault-tolerant modular quantum computing with surface codes using single-shot emission-based hardware
QuTech, Delft University of Technology（代尔夫特理工大学）；Graduate School of Informatics, Kyoto University（京都大学情报大学院）；Department of Electronics and Electrical Engineering, Keio University（庆应义塾大学电子电气工程系）；Networked Quantum Devices Unit, Okinawa Institute of Science and Technology Graduate University（冲绳科学技术大学院大学网络量子设备单元）；National Institute of Information and Communications Technology (NICT)（信息通信研究机构）
