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Multifunctional Coupling System of Topological Edge Waveguide and Corner State Cavity Based on Honeycomb Photonic Crystals 基于蜂巢光子晶体的拓扑边缘波导和角态腔体多功能耦合系统
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-07 DOI: 10.1002/qute.202400073
Yong-Feng Gao, Yue He, Subinuer Rouzi, Yi-Jun Fang, Yi-Han He, Ming Yang, Qi-Chao Hou
{"title":"Multifunctional Coupling System of Topological Edge Waveguide and Corner State Cavity Based on Honeycomb Photonic Crystals","authors":"Yong-Feng Gao,&nbsp;Yue He,&nbsp;Subinuer Rouzi,&nbsp;Yi-Jun Fang,&nbsp;Yi-Han He,&nbsp;Ming Yang,&nbsp;Qi-Chao Hou","doi":"10.1002/qute.202400073","DOIUrl":"10.1002/qute.202400073","url":null,"abstract":"<p>Recently, the topological edge waveguide and corner state cavity have attracted the extensive attention of researchers due to their excellent characteristics with robustness to defects and localization to cavity in manipulating signal transmission, respectively. Herein, topologically trivial and nontrivial photonic crystals (PCs) are realized by shrinking and expanding the honeycomb lattice, and achieve gapped and continuous edge states in the constructed topological edge waveguides with zig-zag and armchair interfaces by combining two kinds of PCs with different topologies, respectively. In addition, corner states are realized by constructing box-shaped structure with zig-zag interfaces, and verify that the corner states appearing around the obtuse-angle corners are topologically protected to introduced defects in the structure. Moreover, a waveguide-cavity coupling system based on an armchair waveguide and a rhomboid cavity is proposed, which can realize multifunction of the signal delay and filtering at specific frequencies. Furthermore, a coupling system consisting of two waveguide and a cavity is constructed to implement beam splitting and filtering, and the stability of the system is greatly improved compared with the traditional optical devices because of the topological property. This work presents a novel approach for the design of micro-nano integrated photonic devices such as filters, storages, and splitters.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141371988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Superconducting Diode Effect in a Constricted Nanowire 束缚纳米线中的超导二极管效应
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-07 DOI: 10.1002/qute.202300378
Xiaofu Zhang, Qingchang Huan, Ruoyan Ma, Xingyu Zhang, Jia Huang, Xiaoyu Liu, Wei Peng, Hao Li, Zhen Wang, Xiaoming Xie, Lixing You
{"title":"Superconducting Diode Effect in a Constricted Nanowire","authors":"Xiaofu Zhang,&nbsp;Qingchang Huan,&nbsp;Ruoyan Ma,&nbsp;Xingyu Zhang,&nbsp;Jia Huang,&nbsp;Xiaoyu Liu,&nbsp;Wei Peng,&nbsp;Hao Li,&nbsp;Zhen Wang,&nbsp;Xiaoming Xie,&nbsp;Lixing You","doi":"10.1002/qute.202300378","DOIUrl":"10.1002/qute.202300378","url":null,"abstract":"<p>Due to isotropic superconducting properties and the lack of breaking of inversion symmetry for conventional s-wave superconductors, a nonreciprocal superconducting diode effect is absent. Recently, a series of superconducting structures, including superconducting superlattice, and quantum-material-based superconducting Josephson junction, have exhibited a superconducting diode effect in terms of polarity-dependent critical current. However, due to complex structures, these composite systems are not able to construct large-scale integrated superconducting circuits. Here, it is demonstrated that the minimal superconducting electric component-superconducting nanowire-based diode with a nonreciprocal transport effect under a perpendicular magnetic field, in which the superconducting to normal metallic phase transition relies on the polarity and amplitude of the bias current. These nanowire diodes can be reliably operated near at all temperatures below the critical temperature, and the rectification efficiency at 2 K can be more than 24%. Moreover, the superconducting nanowire diode is able to rectify both square wave and sine wave signals. Combining the superconducting nanowire-based diodes and transistors, superconducting nanowires hold the possibility to construct novel low-dissipation superconducting integrated circuits.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141372036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Verifying Hierarchic Multipartite and Network Nonlocalities with a Unified Method 用统一方法验证分层多方性和网络非局部性
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-04 DOI: 10.1002/qute.202400021
Ming-Xing Luo, Shao-Ming Fei
{"title":"Verifying Hierarchic Multipartite and Network Nonlocalities with a Unified Method","authors":"Ming-Xing Luo,&nbsp;Shao-Ming Fei","doi":"10.1002/qute.202400021","DOIUrl":"10.1002/qute.202400021","url":null,"abstract":"<p>The multipartite nonlocality provides deep insights into the fundamental feature of quantum mechanics and guarantees different degrees of cryptography security for potential applications in the quantum internet. Verifying multipartite nonlocal correlations is a difficult task. A unified approach is proposed that encompasses all the quantum characteristics of the multipartite correlated system beyond from fully separable to biseparable no-signaling correlations. A straightforward method is offered to verify general systems by lifting partial nonlocal correlations. This allows to construct a chained Bell inequality, facilitating the unified verification of hierarchic multipartite nonlocalities. The lifting method is finally applied to verify the correlations derived from quantum networks.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analyzing Quantum Error Resilience for Quantum Communication in Guided and Unguided Media 分析导引和非导引介质中量子通信的量子抗错能力
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-04 DOI: 10.1002/qute.202400029
Shyam R. Sihare
{"title":"Analyzing Quantum Error Resilience for Quantum Communication in Guided and Unguided Media","authors":"Shyam R. Sihare","doi":"10.1002/qute.202400029","DOIUrl":"10.1002/qute.202400029","url":null,"abstract":"<p>This research examines quantum key distribution and its applications in guided and unguided quantum communication. The importance of secure communication in the quantum era requires a thorough exploration of both guided and unguided quantum communication strategies. The research aims to address the challenges posed by guided channels, such as fiber optics, and unguided channels, such as free-space quantum communication. This study addresses existing knowledge gaps in quantum error resilience management and signal processing techniques in unguided quantum communication. Advanced quantum gate analysis, environmental noise analysis, and quantum channel modeling techniques are employed. The research presents key findings on the impact of gate imperfections on quantum error resilience in guided media, the influence of noise-induced errors in unguided media, and a unified metric for assessing various error sources in guided channels. Additionally, the study analyses stabilizer codes and surface codes for error mitigation through quantum error correction strategies. Simulation results provide a benchmark for theoretical predictions and guide the refinement of quantum communication protocols. In this context, machine learning-based error prediction is introduced as a cutting-edge approach to enhance the robustness of quantum communication systems.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141267962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flexible Quantum Network Coding by Using Quantum Multiplexing 利用量子复用技术实现灵活的量子网络编码
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-04 DOI: 10.1002/qute.202400016
Yu-Guang Yang, Bing-Xin Liu, Guang-Bao Xu, Dong-Huan Jiang, Yi-Hua Zhou, Wei-Min Shi, Tao Shang
{"title":"Flexible Quantum Network Coding by Using Quantum Multiplexing","authors":"Yu-Guang Yang,&nbsp;Bing-Xin Liu,&nbsp;Guang-Bao Xu,&nbsp;Dong-Huan Jiang,&nbsp;Yi-Hua Zhou,&nbsp;Wei-Min Shi,&nbsp;Tao Shang","doi":"10.1002/qute.202400016","DOIUrl":"10.1002/qute.202400016","url":null,"abstract":"<p>Quantum network coding (QNC) aims at alleviating quantum communication congestion in quantum networks. Although several QNC protocols have been presented, they cannot meet the practical requirements that part of source nodes intend to transmit their quantum states with same or different qubit numbers via the bottleneck network simultaneously. Here, the study presents a flexible QNC protocol by using quantum multiplexing. First, the entangled pairs are generated between adjacent nodes in a heralded way by using quantum multiplexing. Then the quantum memories of the source nodes and the ones of the corresponding target nodes are entangled when the intermediate nodes execute multiple rounds of entanglement swapping operations on their quantum memories. Finally, the quantum states are transmitted from the source nodes to their corresponding target nodes by means of quantum teleportation. Compared with the existing protocols, the protocol allows an arbitrary part of the source nodes to transmit their quantum states with same or different qubit numbers via the bottleneck network simultaneously, thereby exhibiting its flexibility.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Topological Quantum Transport Characteristic by Three-band Correlation Mechanism in 2D SnSe 二维SnSe中通过三带相关机制实现的拓扑量子输运特性
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-04 DOI: 10.1002/qute.202300462
Dongxin Li, Zhengxin Yan, Wei Song, Juntao Kong, Wuyue Xu, Qian Cheng, Xingkun Liang, Zehua Zhao
{"title":"Topological Quantum Transport Characteristic by Three-band Correlation Mechanism in 2D SnSe","authors":"Dongxin Li,&nbsp;Zhengxin Yan,&nbsp;Wei Song,&nbsp;Juntao Kong,&nbsp;Wuyue Xu,&nbsp;Qian Cheng,&nbsp;Xingkun Liang,&nbsp;Zehua Zhao","doi":"10.1002/qute.202300462","DOIUrl":"10.1002/qute.202300462","url":null,"abstract":"<p>Understanding electron quantum transport and their coupling interactions in 2D matrix is crucial for manipulating and designing more efficient energy conversion devices, especially in the context of spin transport. Here, we systematically calculate the electronic dispersion properties which the synergistic interaction of the three-band accounted for the topological transport of edge correlated electrons. The helical state protected by the topology appears at the boundary, accompanied by the upward movement (∼0.2 eV) of the helical point caused by the excitation and the loop channel, which the weak braiding effect reveal local strongly correlated interactions between the boundary electrons. In addition, we also introduce spin Hall conductance and Z<sub>2</sub> topological invariants to describe the election dispersion of the topological transport. This provides more possibilities for the realization of topological quantum computing application.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141267000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Tunable Quantum Coherence of Luminescent Molecular Spins Organized via Block Copolymer Self-Assembly 通过嵌段共聚物自组装组织的发光分子自旋的可调量子相干性
IF 4.4
Advanced quantum technologies Pub Date : 2024-06-04 DOI: 10.1002/qute.202400064
Liman Hou, Yu-Shuang Zhang, Yipeng Zhang, Shang-Da Jiang, Mingfeng Wang
{"title":"Tunable Quantum Coherence of Luminescent Molecular Spins Organized via Block Copolymer Self-Assembly","authors":"Liman Hou,&nbsp;Yu-Shuang Zhang,&nbsp;Yipeng Zhang,&nbsp;Shang-Da Jiang,&nbsp;Mingfeng Wang","doi":"10.1002/qute.202400064","DOIUrl":"10.1002/qute.202400064","url":null,"abstract":"<p>Electronic or nuclear spins represent promising candidates of qubits for applications in quantum information technologies and spintronic devices. However, it remains a challenge to achieve scalable and spatially defined organization of a large number of spins as qubits, which is essential in the feasible fabrication of quantum circuits. We report a strategy of block copolymer self-assembly to organize molecular spins as qubits across molecular to micro-/nano-scales in polymeric films of organic luminescent radicals centered in star-like block copolymers. We have achieved not only scalable and spatially defined organization of the molecular spins in polymeric films with long-range periodic ordering but also controllable spin-lattice relaxation dynamics and spin coherence lifetimes that can be finely tuned by the domain sizes and rigidities of the polymeric matrices.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robust Quantum State Manipulation by Composite Pulses in Five-Level Systems 用五级系统中的复合脉冲操纵鲁棒量子态
IF 4.4
Advanced quantum technologies Pub Date : 2024-05-26 DOI: 10.1002/qute.202400080
Jian-Hui Wang, Zhi-Cheng Shi, Ye-Hong Chen, Jie Song, Bi-Hua Huang, Yan Xia
{"title":"Robust Quantum State Manipulation by Composite Pulses in Five-Level Systems","authors":"Jian-Hui Wang,&nbsp;Zhi-Cheng Shi,&nbsp;Ye-Hong Chen,&nbsp;Jie Song,&nbsp;Bi-Hua Huang,&nbsp;Yan Xia","doi":"10.1002/qute.202400080","DOIUrl":"10.1002/qute.202400080","url":null,"abstract":"<p>A scheme is proposed for achieving robust population inversion in five-level systems by means of composite pulses. An example of such a system consists of the magnetic sublevels with angular momenta <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>J</mi>\u0000 <mi>g</mi>\u0000 </msub>\u0000 <mo>=</mo>\u0000 <mn>2</mn>\u0000 </mrow>\u0000 <annotation>$J_g=2$</annotation>\u0000 </semantics></math> and <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>J</mi>\u0000 <mi>e</mi>\u0000 </msub>\u0000 <mo>=</mo>\u0000 <mn>2</mn>\u0000 </mrow>\u0000 <annotation>$J_e=2$</annotation>\u0000 </semantics></math>. Through elaborately constructing the relative phases of pulse pairs, the composite sequences perform well in suppressing the uncorrelated pulse area errors. In particular, the five pulse-pair sequence possesses good robustness and a short evolution time. The composite sequences are further designed to compensate for a single type of pulse area errors to any desired order. This work provides a high-efficiency way for robust quantum state manipulation in five-level systems.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Multi-Party to Multi-Party Quantum Secret Sharing based on Bell States 基于贝尔态的动态多方到多方量子秘密共享
IF 4.4
Advanced quantum technologies Pub Date : 2024-05-26 DOI: 10.1002/qute.202400116
Yuan Tian, Jialong Wang, Genqing Bian, Jinyong Chang, Jian Li
{"title":"Dynamic Multi-Party to Multi-Party Quantum Secret Sharing based on Bell States","authors":"Yuan Tian,&nbsp;Jialong Wang,&nbsp;Genqing Bian,&nbsp;Jinyong Chang,&nbsp;Jian Li","doi":"10.1002/qute.202400116","DOIUrl":"10.1002/qute.202400116","url":null,"abstract":"<p>Quantum secret sharing as a privacy-preserving scheme necessitating collaborative efforts from all participating users to collectively recover encrypted information. This paper introduces a novel dynamic multi-party to multi-party quantum secret sharing protocol based on Bell states, enabling secure sharing of secrets among dynamically changing multi-party. The protocol innovatively employs Bell states combined with simplified local unitary operations, significantly reducing the complexity and enhancing the scalability of practical implementations in quantum communication systems. Particularly, through simulation using IBM's Qiskit framework, its correctness and practicality are confirmed. Security analysis demonstrates that the protocol effectively withstands common attack methods, providing reliability, and security in quantum communication. This research presents a more flexible and efficient solution in the field of quantum secret sharing.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photon Blockade in Cavity Optomechanics Via Parametric Amplification 通过参数放大实现腔体光学机械中的光子阻断
IF 4.4
Advanced quantum technologies Pub Date : 2024-05-26 DOI: 10.1002/qute.202400065
Hong Xie, Le-Wei He, Xiao Shang, Xiu-Min Lin
{"title":"Photon Blockade in Cavity Optomechanics Via Parametric Amplification","authors":"Hong Xie,&nbsp;Le-Wei He,&nbsp;Xiao Shang,&nbsp;Xiu-Min Lin","doi":"10.1002/qute.202400065","DOIUrl":"10.1002/qute.202400065","url":null,"abstract":"<p>Photon blockade is a quantum phenomenon in driven nonlinear systems. It can be observed in cavity optomechanical systems when nonlinear optomechanical interaction occurs at the single-photon level. However, achieving photon blockade in experiments is challenging due to the small single-photon optomechanical coupling strength. Here, photon blockade in an optomechanical system is investigated, where the cavity mode is either strongly or weakly squeezed. When the cavity mode is strongly squeezed, the coupling between squeezed mode and mechanical mode will be exponentially enhanced, leading to strong optical nonlinearity that is required for the realization of photon blockade. In contrast, when the cavity mode is weakly squeezed, the nonlinear optomechanical interaction is weak. It is shown that photon blockade can also be realized through the destructive interference of two paths for two-photon excitation. Interestingly, it is found that a larger mechanical decay rate facilitates the implementation of the interference-based photon blockade, and thermal noise effects can be significantly suppressed by the destructive interference.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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