Advanced quantum technologies最新文献_第9页

Measurement-Device-Independent Continuous-Variable Quantum Secret Sharing 独立于测量设备的连续变量量子秘密共享

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400505

Qin Liao, Lei Huang, Zhuo-Ying Fei, Xi-Quan Fu

引用次数: 0

Electronic Noise Considerations for Designing Integrated Solid-State Quantum Memories 设计集成固态量子存储器的电子噪声考虑

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400472

Tzu-Yung Huang, David A. Hopper, Kaisarbek Omirzakhov, Mohamad Hossein Idjadi, S. Alexander Breitweiser, Firooz Aflatouni, Lee C. Bassett

{"title":"Electronic Noise Considerations for Designing Integrated Solid-State Quantum Memories","authors":"Tzu-Yung Huang, David A. Hopper, Kaisarbek Omirzakhov, Mohamad Hossein Idjadi, S. Alexander Breitweiser, Firooz Aflatouni, Lee C. Bassett","doi":"10.1002/qute.202400472","DOIUrl":"10.1002/qute.202400472","url":null,"abstract":"As quantum networks expand and are deployed outside research laboratories, a need arises to design and integrate compact control electronics for each memory node. It is essential to understand the performance requirements for such systems, especially concerning tolerable levels of noise, since these specifications dramatically affect a system's design complexity and cost. Here, using an approach that can be easily generalized across quantum-hardware platforms, a case study based on nitrogen-vacancy (NV) centers in diamond is presented. The effects of phase noise and timing jitter in the control system in conjunction are modeled and experimentally verified with the spin qubit's environmental noise. The impact of different phase noise characteristics on the fidelity of dynamical decoupling sequences is also considered. The results demonstrate a procedure to specify design requirements for integrated quantum control signal generators for solid-state spin qubits, depending on their coherence time, intrinsic noise spectrum, and required fidelity.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635557","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

Emergent Oscillating Bound States in a Semi-Infinite Linear Waveguide with a Point-Like Λ $Lambda$ -Type Quantum Emitter Driven by a Classical Field 由经典场驱动的点状Λ $Lambda$型量子发射极半无限线性波导中的涌现振荡束缚态

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400535

Yuping He, Ge Sun, Jing Li, Ya Yang, Jing Lu, Lan Zhou

引用次数: 0

Deterministic Implementation of SWAP Gates and CSWAP Gates Using Rydberg Atoms Via Transitionless Quantum Driving 基于无传递量子驱动的Rydberg原子SWAP门和CSWAP门的确定性实现

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400604

Jie Wang, Yan-Qiang Ji, Ji-Ping Wang, Li-Ping Yang, Li Dong, Xiao-Ming Xiu

引用次数: 0

Mechanical Gain Enhanced Propagation of Light in a Hybrid Spin-Mechanical System 机械增益增强光在自旋-机械混合系统中的传播

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400344

Hua-Jun Chen, Yi Sun, Di-Di Zheng, Gui-Xia Pan

{"title":"Mechanical Gain Enhanced Propagation of Light in a Hybrid Spin-Mechanical System","authors":"Hua-Jun Chen, Yi Sun, Di-Di Zheng, Gui-Xia Pan","doi":"10.1002/qute.202400344","DOIUrl":"10.1002/qute.202400344","url":null,"abstract":"The spin-mechanical hybrid systems provide a potential platform to reach quantum science and technology, but practical applications with such hybrid quantum systems need the integration of more physical units. In the article, a multi-mode spin-mechanical hybrid quantum system is proposed with two-mode coupling nanomechanical carbon nanotube (CNT) resonators, in which one CNT resonator is loss and the other CNT resonator can be loss, neutral, or gain. The two carbon nanotube (CNT) resonators can interact through a phase-dependent phonon-exchange mechanism, which couples them to the same nitrogen vacancy centers in diamond via magnetomechanical effects. By modulating the phase of phonon–phonon coupling and leveraging the Fano-like resonance phenomenon, double electromagnetically induced transparency can be achieved in this system. This is accompanied by rapid dispersion, resulting in subtle advancements or delays in light propagation. The group index can be manipulated and periodically switched by tuning the modulation phase, with fast- and slow-light effects being particularly pronounced when one CNT resonator is in an active (gain) state compared to lossy or neutral states. This study establishes a foundation for the application of phonon-mediated optical information storage and processing.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635555","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

Critical Energies and Wigner Functions of the Stationary States of the Bose Einstein Condensates in a Double-Well Trap 双阱阱中玻色-爱因斯坦凝聚态的临界能量和维格纳函数

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400451

D. J. Nader, E. Serrano-Ensástiga

{"title":"Critical Energies and Wigner Functions of the Stationary States of the Bose Einstein Condensates in a Double-Well Trap","authors":"D. J. Nader, E. Serrano-Ensástiga","doi":"10.1002/qute.202400451","DOIUrl":"10.1002/qute.202400451","url":null,"abstract":"The quartic double-well potential contains the essential ingredients to study many-body systems within a rich semiclassical phase-space that includes an unstable point associated to the critical energy. This critical energy in the quantum realm causes symmetry breaking of the wavefunctions and produces a logarithmic divergence in the density of states, leading to an excited-state quantum phase transition (ESQPT). On the other hand, the Bose–Einstein Condensates (BEC) represent a promising platform to observe quantum mechanical phenomena at a macroscopic level. In this work, the lowest stationary states of the BEC in the mean field approximation are obtained via the Gross–Pitaevskii equation in a double-well trap. The critical energy at which the corresponding wavefunctions experience the symmetry breaking is estimated. It is also found that this critical energy is shifted from the local maximum of the trap as the interaction between bosons increases. The Wigner function is used to obtain a phase space representation of the stationary states. It is observed that the state with closest mean energy to its critical value shows vestiges of the separatrix in the semiclassical phase-space. The trends of the entropy, the nonorthogonality of the stationary states, and the nonclassicality via the negativities of the Wigner function are also examined.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635556","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

Engineering Topological States and Quantum-Inspired Information Processing Using Classical Circuits 基于经典电路的工程拓扑态和量子启发信息处理

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400448

Tian Chen, Weixuan Zhang, Deyuan Zou, Yifan Sun, Xiangdong Zhang

引用次数: 0

Duffing Nonlinearity-Enhanced Optomechanical Mass Sensor Duffing非线性增强型光机械质量传感器

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400623

Hui Wang, Zhi-Wen Zhang, Bing-Yu Yang, Shi-Lei Chao, Biao Xiong

引用次数: 0

A Spatial-Based Quantum Graph Convolutional Neural Network and Its Full-Quantum Circuit Implementation 基于空间的量子图卷积神经网络及其全量子电路实现

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400395

Yi Zeng, Jin He, Qijun Huang, Hao Wang, Sheng Chang

{"title":"A Spatial-Based Quantum Graph Convolutional Neural Network and Its Full-Quantum Circuit Implementation","authors":"Yi Zeng, Jin He, Qijun Huang, Hao Wang, Sheng Chang","doi":"10.1002/qute.202400395","DOIUrl":"10.1002/qute.202400395","url":null,"abstract":"With the rapid advancement of quantum computing, the exploration of quantum graph neural networks is gradually emerging. However, the absence of a circuit framework for quantum implementation and limited physical qubits hinder their realization on real quantum computers. To address these challenges, this paper proposes a spatial-based quantum graph convolutional neural network and implements it on a superconducting quantum computer. Specifically, this model exclusively consists of quantum circuits, including quantum aggregation circuits in the quantum graph convolutional layer and quantum classification circuits in the quantum dense layer. To meet the requirements of Noisy Intermediate-Scale Quantum computing, a first-order extraction method to reduce circuit size is employed. Experimental results in node classification tasks demonstrate that this model achieves comparable or even superior performance compared to classical graph neural networks while utilizing fewer parameters. Therefore, this model can inspire further advancements in quantum graph neural networks and facilitate their implementation on physical quantum devices.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 7","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635554","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

Quantum Repeater Protocol for Deterministic Distribution of Macroscopic Entanglement 宏观纠缠确定性分布的量子中继器协议

IF 4.3

Advanced quantum technologies Pub Date : 2025-02-06 DOI: 10.1002/qute.202400524

Alexey N. Pyrkov, Ilia D. Lazarev, Tim Byrnes

{"title":"Quantum Repeater Protocol for Deterministic Distribution of Macroscopic Entanglement","authors":"Alexey N. Pyrkov, Ilia D. Lazarev, Tim Byrnes","doi":"10.1002/qute.202400524","DOIUrl":"10.1002/qute.202400524","url":null,"abstract":"Distributing long-distance entanglement is a fundamental goal that is necessary for a variety of tasks such as quantum communication, distributed quantum computing, and quantum metrology. Currently quantum repeater schemes typically aim to distribute one ebit at a time, the equivalent of one Bell pair's worth of entanglement. Here, a scheme is presented to distribute a macroscopic amount of entanglement across long-distances using a number of operations that scales only linearly with the chain length in the ideal case (without decoherence). The scheme involves ensembles of qubits and entangling them with an <math>\u0000 <semantics>\u0000 <mrow>\u0000 <msup>\u0000 <mi>S</mi>\u0000 <mi>z</mi>\u0000 </msup>\u0000 <msup>\u0000 <mi>S</mi>\u0000 <mi>z</mi>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$S^z S^z$</annotation>\u0000 </semantics></math> interaction, which can be realized using atomic gas ensembles coupled by a shared optical mode. Using only local measurements on the intermediate ensembles, this leaves the ensembles at the ends of the chain entangled. It is showed that there are particular “magic” interaction times that allow for distribution of entanglement with perfect fidelity, with no degradation with chain length. The scheme is deterministic, such that with suitable local conditional unitary corrections, the same entangled state can always be prepared with good approximation.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 8","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832784","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