EPJ Quantum Technology最新文献_第4页

Synergy between noisy quantum computers and scalable classical deep learning for quantum error mitigation 噪声量子计算机与可扩展经典深度学习之间的协同作用，实现量子错误缓解

IF 5.8 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-07-15 DOI: 10.1140/epjqt/s40507-024-00256-8

Simone Cantori, Andrea Mari, David Vitali, Sebastiano Pilati

{"title":"Synergy between noisy quantum computers and scalable classical deep learning for quantum error mitigation","authors":"Simone Cantori, Andrea Mari, David Vitali, Sebastiano Pilati","doi":"10.1140/epjqt/s40507-024-00256-8","DOIUrl":"10.1140/epjqt/s40507-024-00256-8","url":null,"abstract":"<div><p>We investigate the potential of combining the computational power of noisy quantum computers and of classical scalable convolutional neural networks (CNNs). The goal is to accurately predict exact expectation values of parameterized quantum circuits representing the Trotter-decomposed dynamics of quantum Ising models. By incorporating (simulated) noisy expectation values alongside circuit structure information, our CNNs effectively capture the underlying relationships between circuit architecture and output behaviour, enabling, via transfer learning, also predictions for circuits with more qubits than those included in the training set. Notably, thanks to the quantum information, our CNNs succeed even when supervised learning based only on classical descriptors fails. Furthermore, they outperform a popular error mitigation scheme, namely, zero-noise extrapolation, demonstrating that the synergy between quantum and classical computational tools leads to higher accuracy compared with quantum-only or classical-only approaches. By tuning the noise strength, we explore the crossover from a computationally powerful classical CNN assisted by quantum noisy data, towards rather precise quantum computations, further error-mitigated via classical deep learning.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00256-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141618157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A meta-trained generator for quantum architecture search 用于量子架构搜索的元训练生成器

IF 5.8 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-07-09 DOI: 10.1140/epjqt/s40507-024-00255-9

Zhimin He, Chuangtao Chen, Zhengjiang Li, Haozhen Situ, Fei Zhang, Shenggen Zheng, Lvzhou Li

{"title":"A meta-trained generator for quantum architecture search","authors":"Zhimin He, Chuangtao Chen, Zhengjiang Li, Haozhen Situ, Fei Zhang, Shenggen Zheng, Lvzhou Li","doi":"10.1140/epjqt/s40507-024-00255-9","DOIUrl":"10.1140/epjqt/s40507-024-00255-9","url":null,"abstract":"<div><p>Variational Quantum Algorithms (VQAs) have made great success in the Noisy Intermediate-Scale Quantum (NISQ) era due to their relative resilience to noise and high flexibility relative to quantum resources. Quantum Architecture Search (QAS) aims to enhance the performance of VQAs by refining the structure of the adopted Parameterized Quantum Circuit (PQC). QAS is garnering increased attention owing to its automation, reduced reliance on expert experience, and its ability to achieve better performance while requiring fewer quantum gates than manually designed circuits. However, existing QAS algorithms optimize the structure from scratch for each VQA without using any prior experience, rendering the process inefficient and time-consuming. Moreover, determining the number of quantum gates, a crucial hyper-parameter in these algorithms is a challenging and time-consuming task. To mitigate these challenges, we accelerate the QAS algorithm via a meta-trained generator. The proposed algorithm directly generates high-performance circuits for a new VQA by utilizing a meta-trained Variational AutoEncoder (VAE). The number of quantum gates required in the designed circuit is automatically determined based on meta-knowledge learned from a variety of training tasks. Furthermore, we have developed a meta-predictor to filter out circuits with suboptimal performance, thereby accelerating the algorithm. Simulation results on variational quantum compiling and Quantum Approximation Optimization Algorithm (QAOA) demonstrate the superior performance of our method over a state-of-the-art algorithm, namely Differentiable Quantum Architecture Search (DQAS).</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00255-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141561131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient realization of quantum algorithms with qudits 用量子比特高效实现量子算法

IF 5.8 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-26 DOI: 10.1140/epjqt/s40507-024-00250-0

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

{"title":"Efficient realization of quantum algorithms with qudits","authors":"Anastasiia S. Nikolaeva, Evgeniy O. Kiktenko, Aleksey K. Fedorov","doi":"10.1140/epjqt/s40507-024-00250-0","DOIUrl":"10.1140/epjqt/s40507-024-00250-0","url":null,"abstract":"<div><p>The development of a universal fault-tolerant quantum computer that can solve efficiently various difficult computational problems is an outstanding challenge for science and technology. In this work, we propose a technique for an efficient implementation of quantum algorithms with multilevel quantum systems (qudits). Our method uses a transpilation of a circuit in the standard qubit form, which depends on the characteristics of a qudit-based processor, such as the number of available qudits and the number of accessible levels. This approach provides a qubit-to-qudit mapping and comparison to a standard realization of quantum algorithms highlighting potential advantages of qudits. We provide an explicit scheme of transpiling qubit circuits into sequences of single-qudit and two-qudit gates taken from a particular universal set. We then illustrate our method by considering an example of an efficient implementation of a 6-qubit quantum algorithm with qudits. In this particular example, we demonstrate how using qudits allows a decreasing amount of two-body interactions in the qubit circuit implementation. We expect that our findings are of relevance for ongoing experiments with noisy intermediate-scale quantum devices that operate with information carriers allowing qudit encodings, such as trapped ions and neutral atoms, as well as optical and solid-state systems.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00250-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the bias in iterative quantum amplitude estimation 关于迭代量子振幅估计中的偏差

IF 5.8 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-25 DOI: 10.1140/epjqt/s40507-024-00253-x

Koichi Miyamoto

{"title":"On the bias in iterative quantum amplitude estimation","authors":"Koichi Miyamoto","doi":"10.1140/epjqt/s40507-024-00253-x","DOIUrl":"10.1140/epjqt/s40507-024-00253-x","url":null,"abstract":"<div><p>Quantum amplitude estimation (QAE) is a pivotal quantum algorithm to estimate the squared amplitude <i>a</i> of the target basis state in a quantum state <span>(|{Phi}rangle )</span>. Various improvements on the original quantum phase estimation-based QAE have been proposed for resource reduction. One of such improved versions is iterative quantum amplitude estimation (IQAE), which outputs an estimate <i>â</i> of <i>a</i> through the iterated rounds of the measurements on the quantum states like <span>(G^{k}|{Phi}rangle )</span>, with the number <i>k</i> of operations of the Grover operator <i>G</i> (the Grover number) and the shot number determined adaptively. This paper investigates the bias in IQAE. Through the numerical experiments to simulate IQAE, we reveal that the estimate by IQAE is biased and the bias is enhanced for some specific values of <i>a</i>. We see that the termination criterion in IQAE that the estimated accuracy of <i>â</i> falls below the threshold is a source of the bias. Besides, we observe that <span>(k_{mathrm{fin}})</span>, the Grover number in the final round, and <span>(f_{mathrm{fin}})</span>, a quantity affecting the probability distribution of measurement outcomes in the final round, are the key factors to determine the bias, and the bias enhancement for specific values of <i>a</i> is due to the skewed distribution of <span>((k_{mathrm{fin}},f_{mathrm{fin}}))</span>. We also present a bias mitigation method: just re-executing the final round with the Grover number and the shot number fixed.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.8,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00253-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Continuous variable entanglement between propagating optical modes using optomechanics 利用光力学实现传播光模式之间的连续可变纠缠

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-20 DOI: 10.1140/epjqt/s40507-024-00252-y

Greeshma Gopinath, Yong Li, Sankar Davuluri

引用次数: 0

An intelligent threshold selection method to improve orbital angular momentum-encoded quantum key distribution under turbulence 改进湍流条件下轨道角动量编码量子密钥分发的智能阈值选择方法

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-06 DOI: 10.1140/epjqt/s40507-024-00251-z

Jia-Hao Li, Jie Tang, Xing-Yu Wang, Yang Xue, Hui-Cun Yu, Zhi-Feng Deng, Yue-Xiang Cao, Ying Liu, Dan Wu, Hao-Ran Hu, Ya Wang, Hua-Zhi Lun, Jia-Hua Wei, Bo Zhang, Bo Liu, Lei Shi

{"title":"An intelligent threshold selection method to improve orbital angular momentum-encoded quantum key distribution under turbulence","authors":"Jia-Hao Li, Jie Tang, Xing-Yu Wang, Yang Xue, Hui-Cun Yu, Zhi-Feng Deng, Yue-Xiang Cao, Ying Liu, Dan Wu, Hao-Ran Hu, Ya Wang, Hua-Zhi Lun, Jia-Hua Wei, Bo Zhang, Bo Liu, Lei Shi","doi":"10.1140/epjqt/s40507-024-00251-z","DOIUrl":"10.1140/epjqt/s40507-024-00251-z","url":null,"abstract":"<div><p>High-dimensional quantum key distribution (HD-QKD) encoded by orbital angular momentum (OAM) presents significant advantages in terms of information capacity. However, perturbations caused by free-space atmospheric turbulence decrease the performance of the system by introducing random fluctuations in the transmittance of OAM photons. Currently, the theoretical performance analysis of OAM-encoded QKD systems exists a gap when concerning the statistical distribution under the free-space link. In this article, we analyzed the security of QKD systems by combining probability distribution of transmission coefficient (PDTC) of OAM with decoy-state BB84 method. To address the problem that the invalid key rate is calculated in the part transmittance interval of the post-processing process, an intelligent threshold method based on neural network is proposed to improve OAM-encoded QKD, which aims to conserve computing resources and enhance system efficiency. Our findings reveal that the ratio of root mean square (RMS) OAM-beam radius to Fried constant plays a crucial role in ensuring secure key generation. Meanwhile, the training error of neural network is at the magnitude around 10<sup>−3</sup>, indicating the ability to predict optimization parameters quickly and accurately. Our work contributes to the advancement of parameter optimization and prediction for free-space OAM-encoded HD-QKD systems. Furthermore, it provides valuable theoretical insights to support the development of free-space experimental setups.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00251-z","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards quantum technologies with gamma photons 利用伽马光子发展量子技术

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-06 DOI: 10.1140/epjqt/s40507-024-00240-2

S. Ujeniuc, R. Suvaila

{"title":"Towards quantum technologies with gamma photons","authors":"S. Ujeniuc, R. Suvaila","doi":"10.1140/epjqt/s40507-024-00240-2","DOIUrl":"10.1140/epjqt/s40507-024-00240-2","url":null,"abstract":"<div><p>In the context of the second quantum revolution, the ability to manipulate quantum systems is already used for various techniques and a growing number of technology demonstrators, mostly with low energy photons. In this frame, our intention is to extend quantum technologies to gamma photons. Our aim is to take advantage of resources brought by entanglement with higher energy particles, particularly electron-positron annihilation quanta. Tools for low frequency quantum experiments are not suitable for penetrant radiation, consequently we need to use effects typical to the keV-MeV energy range instead. High energy photon protocols would include fundamental properties testing, industrial imaging, quantum random number generators, quantum simulators, military applications and improvement of already existing medical procedures. In this paper we review some important steps in the study of annihilation photon correlations, we point out the experimental differences and necessities with respect to the energy increase in quantum photonic experiments and we describe the design of a quantum gamma device we propose for experiments meant to prove feasibility of gamma ray based protocols. The perspective behind our project is to evidence the possibility to communicate via entangled quanta through media which are not transparent for low energy photons.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00240-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A KPI framework to standardize the measurement of a country’s progress in bringing quantum computing into application 量子计算应用进展的标准化衡量指标框架

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-06-04 DOI: 10.1140/epjqt/s40507-024-00245-x

Quantum Technology and Application Consortium – QUTAC, Julia Binder, Lara Hachmann, Sebastian Luber

{"title":"A KPI framework to standardize the measurement of a country’s progress in bringing quantum computing into application","authors":"Quantum Technology and Application Consortium – QUTAC, Julia Binder, Lara Hachmann, Sebastian Luber","doi":"10.1140/epjqt/s40507-024-00245-x","DOIUrl":"10.1140/epjqt/s40507-024-00245-x","url":null,"abstract":"<div><p>Quantum computing (QC) is a new and disruptive technology with large economic potential especially in application and downstream value creation stages. Hence, it is important for an economy to understand the current implementation state and to know the ecosystem to support the successful industrial application of this technology. Regularly identifying potential areas of improvement and then defining appropriate actions is necessary to ensure a leading position. Therefore, the Quantum Technology and Application Consortium (QUTAC) has developed a Key Performance Indicator (KPI) framework consisting of 24 KPIs that represent a country’s performance in applying QC. Detailed measurement guidelines and clear data sources ensure transparency of measurement, reproducibility of KPI values and comparability over time. An aggregation method allows summarizing the results of all KPIs. Thus, it is possible to assess the performance of each stakeholder involved and to calculate a single composite indicator that represents the country’s performance. The KPI framework can be adapted to any country and enables the comparison of the performance of different countries. It is a proposal for standardizing the evaluation of QC and its ecosystem on a national level. Thus, strengths and weaknesses can be identified and measurements for improvement derived. The paper highlights the development of the framework, its main features and the application of the framework to Germany. Based on the results, we will discuss the current state of QC application in Germany and make possible suggestions for improvement.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00245-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141251241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of robust memory modes for linear quantum systems with unknown inputs 合成具有未知输入的线性量子系统的稳健记忆模式

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-05-30 DOI: 10.1140/epjqt/s40507-024-00249-7

Zibo Miao, Xinpeng Chen, Yu Pan, Qing Gao

{"title":"Synthesis of robust memory modes for linear quantum systems with unknown inputs","authors":"Zibo Miao, Xinpeng Chen, Yu Pan, Qing Gao","doi":"10.1140/epjqt/s40507-024-00249-7","DOIUrl":"10.1140/epjqt/s40507-024-00249-7","url":null,"abstract":"<div><p>In this paper, the synthesis of robust memory modes for linear quantum passive systems in the presence of unknown inputs has been studied, aimed at facilitating secure storage and communication of quantum information. In particular, we can switch on decoherence-free (DF) modes in the storage stage by placing the poles on the imaginary axis via a coherent feedback control scheme, and these memory modes can further be simultaneously made robust against perturbations to the system parameters by minimizing the condition number associated with imaginary poles. The DF modes can also be switched off by tuning the controller parameters to place the poles in the left half of the complex plane in the writing/reading stage. We develop explicit algebraic conditions guiding the design of such a coherent quantum controller, which involves employing an augmented system model to counter the influence of unknown inputs. Examples are provided to illustrate the procedure of synthesizing robust memory modes for linear optical quantum systems.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00249-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141182087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full quantum tomography study of Google’s Sycamore gate on IBM’s quantum computers 在 IBM 量子计算机上对谷歌梧桐门进行全量子层析研究

IF 5.3 2区物理与天体物理

EPJ Quantum Technology Pub Date : 2024-05-27 DOI: 10.1140/epjqt/s40507-024-00248-8

Muhammad AbuGhanem, Hichem Eleuch

{"title":"Full quantum tomography study of Google’s Sycamore gate on IBM’s quantum computers","authors":"Muhammad AbuGhanem, Hichem Eleuch","doi":"10.1140/epjqt/s40507-024-00248-8","DOIUrl":"10.1140/epjqt/s40507-024-00248-8","url":null,"abstract":"<div><p>The potential of achieving computational hardware with quantum advantage depends heavily on the quality of quantum gate operations. However, the presence of imperfect two-qubit gates poses a significant challenge and acts as a major obstacle in developing scalable quantum information processors. Google’s Quantum AI and collaborators claimed to have conducted a supremacy regime experiment. In this experiment, a new two-qubit universal gate called the <i>Sycamore</i> gate is constructed and employed to generate random quantum circuits (RQCs), using a programmable quantum processor with 53 qubits. These computations were carried out in a computational state space of size <span>(9 times 10^{15})</span>. Nevertheless, even in strictly-controlled laboratory settings, quantum information on quantum processors is susceptible to various disturbances, including undesired interaction with the surroundings and imperfections in the quantum state. To address this issue, we conduct both quantum state tomography (QST) and quantum process tomography (QPT) experiments on Google’s <i>Sycamore</i> gate using different artificial architectural superconducting quantum computer. Furthermore, to demonstrate how errors affect gate fidelity at the level of quantum circuits, we design and conduct full QST experiments for the five-qubit eight-cycle circuit, which was introduced as an example of the programability of Google’s <i>Sycamore</i> quantum processor. These quantum tomography experiments are conducted in three distinct environments: noise-free, noisy simulation, and on IBM Quantum’s genuine quantum computer. Our results offer valuable insights into the performance of IBM Quantum’s hardware and the robustness of <i>Sycamore</i> gates within this experimental setup. These findings contribute to our understanding of quantum hardware performance and provide valuable information for optimizing quantum algorithms for practical applications.</p></div>","PeriodicalId":547,"journal":{"name":"EPJ Quantum Technology","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://epjquantumtechnology.springeropen.com/counter/pdf/10.1140/epjqt/s40507-024-00248-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0