Advanced Physics Research最新文献

Singular Electromagnetics: From Phase Singularities to Optical Skyrmions and Beyond (Adv. Phys. Res. 5/2025) 奇异电磁学：从相位奇点到光学奇点及以后（物理学博士）。研究》5/2025)

Advanced Physics Research Pub Date : 2025-05-07 DOI: 10.1002/apxr.202570011

Jie Yang, Juanna Jiang, Jiafu Wang, Xuezhi Zheng

引用次数: 0

Issue Information (Adv. Phys. Res. 5/2025) 发行信息（物理广告）研究》5/2025)

Advanced Physics Research Pub Date : 2025-05-07 DOI: 10.1002/apxr.202570012

引用次数: 0

Electrical Manipulation of Intervalley Trions in Twisted MoSe2 Homobilayers at Room Temperature (Adv. Phys. Res. 5/2025) 室温下扭曲MoSe2均匀层中谷间Trions的电操纵（物理学报）。研究》5/2025)

Advanced Physics Research Pub Date : 2025-05-07 DOI: 10.1002/apxr.202570013

Bárbara L. T. Rosa, Paulo E. Faria Junior, Alisson R. Cadore, Yuhui Yang, Aris Koulas-Simos, Chirag C. Palekar, Seth Ariel Tongay, Jaroslav Fabian, Stephan Reitzenstein

{"title":"Electrical Manipulation of Intervalley Trions in Twisted MoSe2 Homobilayers at Room Temperature (Adv. Phys. Res. 5/2025)","authors":"Bárbara L. T. Rosa, Paulo E. Faria Junior, Alisson R. Cadore, Yuhui Yang, Aris Koulas-Simos, Chirag C. Palekar, Seth Ariel Tongay, Jaroslav Fabian, Stephan Reitzenstein","doi":"10.1002/apxr.202570013","DOIUrl":"https://doi.org/10.1002/apxr.202570013","url":null,"abstract":"Electrical Control of Excitonic ComplexesThe cover feature showcases the exploration of exciton complexes in electrically contacted artificially twisted MoSe2 homobilayers, highlighting their unique optical and electronic properties. Unlike conventional heterobilayers, homobilayers benefit from the absence of lattice mismatch, enhancing their potential for practical applications. In article number 2400135, Bárbara L. T. Rosa, Stephan Reitzenstein and colleagues unveil the tunable excitonic behavior of these systems through electrical charge carrier concentration control at room temperature. By performing gate-dependent photoluminescence experiments on devices with various twist angles, they demonstrate a twist-angle-dependent doping effect that significantly influences the neutral and negatively charged intralayer excitons. The findings substantially advance the understanding of TMD homobilayers by enabling control over their emission properties, laying a strong foundation for future applications in van der Waals semiconductor devices.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202570013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operation of Single-Spin Qubits: Recent Advances and Prospects (Adv. Phys. Res. 4/2025) 单自旋量子比特的操作：最新进展与展望（物理学报）。研究》4/2025)

Advanced Physics Research Pub Date : 2025-04-10 DOI: 10.1002/apxr.202570010

Zhizhuo Zhang, Jushang Ran, Fei Gao, Chuancheng Jia, Xuefeng Guo

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Issue Information (Adv. Phys. Res. 4/2025) 发行信息（物理广告）研究》4/2025)

Advanced Physics Research Pub Date : 2025-04-10 DOI: 10.1002/apxr.202570009

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A Field Guide to Non-Onsager Quantum Oscillations in Metals (Adv. Phys. Res. 4/2025) 金属中非稳态量子振荡的场导则（物理版）。研究》4/2025)

Advanced Physics Research Pub Date : 2025-04-10 DOI: 10.1002/apxr.202570008

Valentin Leeb, Nico Huber, Christian Pfleiderer, Johannes Knolle, Marc A. Wilde

引用次数: 0

Polymeric Memristors as Entropy Sources for Probabilistic Bit Generation 聚合忆阻器作为概率位生成的熵源

Advanced Physics Research Pub Date : 2025-03-20 DOI: 10.1002/apxr.202400142

Stephen H. Foulger, Yuriy Bandera, Igor Luzinov, Travis Wanless

{"title":"Polymeric Memristors as Entropy Sources for Probabilistic Bit Generation","authors":"Stephen H. Foulger, Yuriy Bandera, Igor Luzinov, Travis Wanless","doi":"10.1002/apxr.202400142","DOIUrl":"https://doi.org/10.1002/apxr.202400142","url":null,"abstract":"Probabilistic bits, or p-bits, represent a novel computational element that bridges the gap between deterministic classical bits and quantum bits (qubits) used in quantum computing. Unlike classical bits that maintain a definite state of 0 or 1, a p-bit fluctuates between these states in a controlled, stochastic manner. This probabilistic behavior allows for the representation and processing of information in a form that leverages inherent randomness. In this study, a unique approach is presented to generating p-bits using a hybrid conjugated polymer, poly-4-((6-(4H-dithieno[3,2-b:2',3'-d]pyrrol-4-yl)hexyl)oxy)-N,N-diphenylaniline (pTPADTP), as a memristive material. The polymer's conjugated backbone, combined with pendant triphenylamine groups, enables the creation of p-bits through random resistance switching. The stochasticity of this polymeric memristor makes it particularly suited for p-bit applications in stochastic optimization, probabilistic algorithms, and artificial neural networks. The charge transport in the polymer is facilitated by two synergistic percolation mechanisms: one occurring along the polymer backbone and the other through the pendant triphenylamine groups. The study of p-bits generated from pTPADTP opens new avenues for advancing both the theory and practice of computation, where uncertainty and randomness are harnessed as valuable computational resources.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pulse-Level Quantum Robust Control with Diffusion-Based Reinforcement Learning 基于扩散强化学习的脉冲级量子鲁棒控制

Advanced Physics Research Pub Date : 2025-03-19 DOI: 10.1002/apxr.202400159

Yuanjing Zhang, Tao Shang, Chenyi Zhang, Xueyi Guo

{"title":"Pulse-Level Quantum Robust Control with Diffusion-Based Reinforcement Learning","authors":"Yuanjing Zhang, Tao Shang, Chenyi Zhang, Xueyi Guo","doi":"10.1002/apxr.202400159","DOIUrl":"https://doi.org/10.1002/apxr.202400159","url":null,"abstract":"The pulse-level quantum control presents a large range of external parameter dependencies, including control field noise, frequency detuning, nonlinearities, and uncertainty of Hamiltonian parameters, which can lead to significant deviation from the target quantum gate. These terms are not usually considered directly in standard optimization scenarios for robustness, but are often found in analytical solutions. The latter are often difficult to emerge and generalize to different settings. This paper proposes a diffusion-based reinforcement learning method for pulse-level quantum robust control (PQC-DBRL) to enhance the robustness of pulse-level quantum gate control. PQC-DBRL does not require an accurate Hamiltonian model of the underlying system, effectively mitigating deviations from target quantum gates caused by control field noise and parameter uncertainties. The quantum pulse control problem is formulated as a conditional generative modeling task, leveraging diffusion reinforcement learning to capture unobserved system information. Furthermore, the results show that PQC-DBRL pulses maintain a fidelity greater than 0.95 for 100% of the cases and greater than 0.999 for 32.16% of the cases, outperforming GRAPE, which achieves 0.999 fidelity for only 12.48% of the cases under the same noise conditions. In large-scale experiments with repeated gate operations, PQC-DBRL demonstrates significantly higher resilience to cumulative errors, maintaining fidelity advantages even after 200 gate repetitions. Additionally, when evaluated across different Hamiltonian variations, PQC-DBRL shows smaller fidelity variance compared to GRAPE, indicating higher robustness against system parameter fluctuations. This paper offers a promising solution to scalable, noise-resilient quantum control in practical quantum computing applications.","PeriodicalId":100035,"journal":{"name":"Advanced Physics Research","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/apxr.202400159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143919486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple Open and Closed Nodal-Line Phonons in Solids with a 1 Space Group (Adv. Phys. Res. 3/2025) 具有1空间群的固体中的多个开闭节点线声子。研究》3/2025)

Advanced Physics Research Pub Date : 2025-03-10 DOI: 10.1002/apxr.202570006

Xiaotian Wang, Tingting Sun, Chengwu Xie, Hongkuan Yuan, Yang Tie, Zeying Zhang, Gang Zhang

引用次数: 0

Issue Information (Adv. Phys. Res. 3/2025) 发行信息（物理广告）研究》3/2025)

Advanced Physics Research Pub Date : 2025-03-10 DOI: 10.1002/apxr.202570007

引用次数: 0