Advanced quantum technologies最新文献

{"title":"Issue Information (Adv. Quantum Technol. 5/2025)","authors":"","doi":"10.1002/qute.202570011","DOIUrl":"https://doi.org/10.1002/qute.202570011","url":null,"abstract":"","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202570011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944803","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}

{"title":"Quantum Ghost Imaging by Sparse Spatial Mode Reconstruction (Adv. Quantum Technol. 5/2025)","authors":"Fazilah Nothlawala,&nbsp;Chané Moodley,&nbsp;Neelan Gounden,&nbsp;Isaac Nape,&nbsp;Andrew Forbes","doi":"10.1002/qute.202570010","DOIUrl":"https://doi.org/10.1002/qute.202570010","url":null,"abstract":"<p>In article number 2400577, Andrew Forbes and co-workers achieved high resolution, time-efficient quantum ghost imaging by leveraging structured light and spatial modes as a basis for imaging, paving the way for breakthroughs in low-light, biological science applications. The cover represents an object — the ghost — whose image is revealed through spatial mode projections.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202570010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944802","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}

{"title":"Reference-Frame-Independent Asynchronous Measurement-Device-Independent Quantum Key Distribution","authors":"Kaiyi Shi,&nbsp;Yue Li,&nbsp;Haoyang Wang,&nbsp;Chang Liu,&nbsp;Duo Ma,&nbsp;Yujia Zhang,&nbsp;Fangze Ma,&nbsp;Haiqiang Ma","doi":"10.1002/qute.202400711","DOIUrl":"https://doi.org/10.1002/qute.202400711","url":null,"abstract":"<p>Asynchronous quantum key distribution protocol (AMDI-QKD) is a high performance quantum key distribution protocol while it can outperform the Pirandola–Laurenza–Ottaviani–Banchi (PLOB) bound without the need of phase-locking and phase-tracking techniques. However, the protocol applies the relative phase information of the communicating parties for encoding, and the drift of the reference frame inevitably affects the performance of the QKD system, whereas reference frame independent quantum key distribution (RFI-QKD) has the advantage of tolerating the slow change of the reference frame. In this study, a reference frame-independent asynchronous quantum key distribution (RFI-AMDI-QKD) scheme is proposed, which does not require phase alignment between the interferometers of both parties, and it is shown that the protocol can transmit over long distances and is robust to the drift of the reference frame.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143945037","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}

{"title":"On-Chip Apodized Hybrid Photonic-Plasmonic Cavity QED for Polarized Single Photons Coupling","authors":"Subrat Sahu,&nbsp;Colin Jacob,&nbsp;Abhishek Kumar,&nbsp;Rajan Jha","doi":"10.1002/qute.202400712","DOIUrl":"https://doi.org/10.1002/qute.202400712","url":null,"abstract":"<p>A system is proposed for the efficient coupling of plasmon-enhanced polarized single photons into a 1D apodized hybrid photonic-plasmonic (HPP) cavity structure, to realize cavity quantum electrodynamics (QED). The HPP cavity is formed by placing a gold nanorod (GNR) on an apodized 1D photonic crystal (PhC) cavity designed on a diamond waveguide. It is shown that the spontaneous emission of quantum emitters (QE) can be strongly enhanced by utilizing the combination of GNR and Phc cavity structure, leading to the emission of highly polarized and bright single photons. The Purcell factor is numerically estimated as high ≈5303, with a cavity-enhanced coupling efficiency of up to ≈24.3% and a degree of polarization (DOP) of more than 99%, in the guided modes of the HPP cavity. Under the resonance condition, a 28-fold increase in enhancement factor in the HPP cavity as compared to a moderate finesse-based Phc cavity is achieved. The cavity is designed to minimize the losses, resulting in a scattering-limited <i>Q</i>-factor and one-pass loss estimated to be around 21500 and 0.1%, respectively. This work paves the way to realize quantum photonic devices based on efficient photonic interfaces for on-chip quantum information processing applications.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944741","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}

{"title":"Distributed Quantum Algorithm for the NISQ Era: A Novel Approach to Solving Simon's Problem with Reduced Resources","authors":"Xu Zhou,&nbsp;Yuchen Wang,&nbsp;Wenxuan Tao,&nbsp;Zhuojun Zhou,&nbsp;Le Luo","doi":"10.1002/qute.202500067","DOIUrl":"https://doi.org/10.1002/qute.202500067","url":null,"abstract":"&lt;p&gt;Distributed quantum computation has gained significant interest in the noisy intermediate-scale quantum (NISQ) era. This paradigm requires each computing node to possess a reduced number of qubits and quantum gates. In this study, a Distributed Simon's Algorithm (DSA) is designed to tackle Simon's problem, which entails the discovery of a hidden string &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;s&lt;/mi&gt;\u0000 &lt;mo&gt;∈&lt;/mo&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;{&lt;/mo&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mo&gt;,&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;mo&gt;}&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$s in lbrace 0,1rbrace ^n$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; of a promised Boolean function &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;f&lt;/mi&gt;\u0000 &lt;mo&gt;:&lt;/mo&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;{&lt;/mo&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mo&gt;,&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;mo&gt;}&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mi&gt;n&lt;/mi&gt;\u0000 &lt;/msup&gt;\u0000 &lt;mo&gt;→&lt;/mo&gt;\u0000 &lt;msup&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mo&gt;{&lt;/mo&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 &lt;mo&gt;,&lt;/mo&gt;\u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;mo&gt;}&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;mi&gt;m&lt;/mi&gt;\u0000 &lt;/msup&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$f: lbrace 0,1rbrace ^n rightarrow lbrace 0,1rbrace ^m$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;, where &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;f&lt;/mi&gt;\u0000 &lt;mo&gt;(&lt;/mo&gt;\u0000 &lt;mi&gt;x&lt;/mi&gt;\u0000 &lt;mo&gt;)&lt;/mo&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mi&gt;f&lt;/mi&gt;\u0000 &lt;mo&gt;(&lt;/mo&gt;\u0000 &lt;mi&gt;y&lt;/mi&gt;\u0000 &lt;mo&gt;)&lt;/mo&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$f(x)=f(y)$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; if and only if &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;x&lt;/mi&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mi&gt;y&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$x=y$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt; or &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 &lt;mi&gt;x&lt;/mi&gt;\u0000 &lt;mi&gt;⊕&lt;/mi&gt;\u0000 &lt;mi&gt;y&lt;/mi&gt;\u0000 &lt;mo&gt;=&lt;/mo&gt;\u0000 &lt;mi&gt;s&lt;/mi&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt;$x oplus y = s$&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;. Specifically, 1) our algorithm is capable of being partitioned into any &lt;span&gt;&lt;/","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944753","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}

{"title":"Kerr-Effect-Based High-Dimensional Entanglement Generation for Qudit Systems","authors":"Ming Ma,&nbsp;Qiang Zhu,&nbsp;Fang-Fang Du","doi":"10.1002/qute.202500010","DOIUrl":"https://doi.org/10.1002/qute.202500010","url":null,"abstract":"<p>Employing high-dimensional photonic encodings (qudits) instead of the traditional 2D encodings (qubits) can significantly enhance loss tolerance and reduce computational resources in photon-based quantum information technology (QIT). To tap into this potential, effective schemes for the high-dimensional generation of entangled states are essential. In this study, two arbitrary 4D entanglement generation protocols based on cross-Kerr effect are developed, including two-qudit entangled states with two photon pairs and three-qudit entangled states with three photon pairs. These 4D entangled states require neither auxiliary photons (or entangled states) nor complicated quantum circuits. The success probabilities of high-dimensional entangled states are close to 1 and their fidelities are robust against the photon loss with the current technology. The 4D entangled states depend on only simple linear-optics elements, available four-dimensional single-qudit operations, and mature measurement methods, making our proposed protocols feasible and efficient in practical QIT.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944731","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}

{"title":"Issue Information (Adv. Quantum Technol. 4/2025)","authors":"","doi":"10.1002/qute.202570009","DOIUrl":"https://doi.org/10.1002/qute.202570009","url":null,"abstract":"","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202570009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793693","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}

{"title":"Sliding Mode Control-Like Accelerated Coherent Ising Machine","authors":"Zhi-guo Nie,&nbsp;Ruo-xing Guo,&nbsp;Chen-rui Fan,&nbsp;Xing-yu Wu,&nbsp;Bo Lu,&nbsp;Cong Cao,&nbsp;Yong-pan Gao","doi":"10.1002/qute.202500057","DOIUrl":"https://doi.org/10.1002/qute.202500057","url":null,"abstract":"<p>Coherent Ising Machine (CIM) emerge as powerful tools for solving large-scale combinatorial optimization problems by mapping them to the ground state search of the Ising model. Traditional CIM models face two major challenges when addressing large-scale problems: slowness in convergence and susceptibility to local minima. To address these limitations, the Sliding Mode Control-Like Coherent Ising Machine (SMCL-CIM) integrates sliding mode control principles into the feedback mechanism of the CIM, inspired by classical dynamic control methods. Experimental results on random graphs and G-set benchmarks demonstrate that for the max-cut problem, SMCL-CIM achieves an approximately 79. 93% reduction in solution time while improving solution accuracy by 11.4%–15.3% under the same simulation conditions. This scheme provides an efficient and scalable approach to combinatorial optimization, thereby facilitating the broader application of CIM.</p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 5","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143944732","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}

{"title":"Magnetic Field Sensitivity Optimization of Negatively Charged Boron Vacancy Defects in hBN (Adv. Quantum Technol. 4/2025)","authors":"Benjamin Whitefield,&nbsp;Milos Toth,&nbsp;Igor Aharonovich,&nbsp;Jean-Philippe Tetienne,&nbsp;Mehran Kianinia","doi":"10.1002/qute.202570008","DOIUrl":"https://doi.org/10.1002/qute.202570008","url":null,"abstract":"<p>The image depicts the optical excitation of negatively charged boron vacancies in a hexagonal boron nitride lattice. The lattice is positioned on top of a gold stripe which applies a radio frequency used for optically detected magnetic resonance. The magnet placed on the lattice represents the capability of precise magnetic field sensing available with this spin control technique. More in article number 2300118, Igor Aharonovich and co-workers.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202570008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793692","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}

{"title":"Quantum Sensing","authors":"Tongcang Li,&nbsp;Ren-bao Liu,&nbsp;Chong Zu","doi":"10.1002/qute.202500120","DOIUrl":"https://doi.org/10.1002/qute.202500120","url":null,"abstract":"","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793687","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}