{"title":"Scoring Anomalous Vertices Through Quantum Walks","authors":"Andrew Vlasic, Anh Pham","doi":"10.1002/andp.202400282","DOIUrl":"https://doi.org/10.1002/andp.202400282","url":null,"abstract":"<p>With the constant flow of data from vast sources over the past decades, a plethora of advanced analytical techniques have been developed to extract relevant information from different data types ranging from labeled data, quasi-labeled data, and data with no labels known a priori. For data with at best quasi-labels, graphs are a natural representation and have important applications in many industries and scientific disciplines. Specifically, for unlabeled data, anomaly detection on graphs is a method to determine which data points do not posses the latent characteristics that are present in most other data. There have been a variety of classical methods to compute an anomalous score for the individual vertices of a respective graph, such as checking the local topology of a node, random walks, and complex neural networks. Leveraging the structure of the graph, the first quantum algorithm is proposed to calculate the anomaly score of each node by continuously traversing the graph with a uniform starting position for all nodes. The proposed algorithm incorporates well-known characteristics of quantum walks, and, taking into consideration the noisy intermediate-scale quantum (NISQ) era and subsequent intermediate-scale quantum (ISQ) era, an adjustment to the algorithm is provided to mitigate the increasing depth of the circuit. This algorithm is rigorously shown to converge to the expected probability with respect to the initial condition.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An Algebraic Roadmap of Particle Theories","authors":"Nichol Furey","doi":"10.1002/andp.202400322","DOIUrl":"https://doi.org/10.1002/andp.202400322","url":null,"abstract":"<p>Expanding the results of previous research, a network of algebraic connections is demonstrated between <i>six well-known particle theories</i>. These are the Spin(10) model, the Georgi–Glashow model, the Pati–Salam model, the Left–Right Symmetric model, the Standard Model both pre- and post-Higgs mechanism. A new inclusion of a quaternionic reflection within the network further differentiates <span></span><math>\u0000 <semantics>\u0000 <msup>\u0000 <mi>W</mi>\u0000 <mo>±</mo>\u0000 </msup>\u0000 <annotation>$W^{pm }$</annotation>\u0000 </semantics></math> bosons from the <span></span><math>\u0000 <semantics>\u0000 <msup>\u0000 <mi>Z</mi>\u0000 <mn>0</mn>\u0000 </msup>\u0000 <annotation>$Z^0$</annotation>\u0000 </semantics></math> boson in comparison to the Standard Model. It may introduce subtle new considerations for the phenomenology of electroweak symmetry breaking.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 4","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202400322","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
Viktor Vorobev, Olga Goryacheva, Julia Skibina, Anton Kozyrev, Alexander Smirnov, Pavlos Lagoudakis, Dmitry Gorin
{"title":"Optical Properties Control of Hollow Core Microstructured Optical Fibers by Layer-by-Layer Assembled Quantum Dots and Annealing","authors":"Viktor Vorobev, Olga Goryacheva, Julia Skibina, Anton Kozyrev, Alexander Smirnov, Pavlos Lagoudakis, Dmitry Gorin","doi":"10.1002/andp.202400147","DOIUrl":"https://doi.org/10.1002/andp.202400147","url":null,"abstract":"<p>Hollow core microstructured optical fibers (HC-MOFs) have attracted considerable attention in photonics, particularly for their potential in sensing applications in biology and medicine. This work presents a novel approach to modifying HC-MOF inner walls using quantum dots (QDs) and HC-MOF facets via hybrid membranes. These modifications are achieved through layer-by-layer (LbL) assembly, resulting in a reduced light transmission and a spectral red shift. Subsequent annealing restores transmission and induces a spectral blue shift. A similar effect is observed under low-pressure annealing when a mirror is installed on the facet of the modified fibers. An optimal method is demonstrated for these modifications and their impact is analyzed on HC-MOF transmission spectra and QDs photoluminescence. These findings highlight the practical approach to these modifications, paving the way for advanced HC-MOF-based sensors and multimodal probes in biomedical applications.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Generating Asymmetric Einstein–Podolsky–Rosen Steering between Two movable Mirrors Exploiting Correlated-Emission Laser","authors":"Jamal El Qars, Ismail Essaoudi, Abdelmajid Ainane","doi":"10.1002/andp.202400373","DOIUrl":"https://doi.org/10.1002/andp.202400373","url":null,"abstract":"<p>Quantum steering is a form of quantum correlation that exhibits an inherent asymmetry, distinguishing it from entanglement and Bell nonlocality. It is now understood that quantum steering plays a pivotal role in asymmetric quantum information tasks. In this work, a scheme is proposed to generate asymmetric steering between two mechanical modes by transferring quantum coherence from a correlated-emission laser. To accomplish this, quantum Langevin equations is derived to describe the optomechanical coupling between two cavity modes and two mechanical modes along with the master equation of two-mode laser. By examining the case where the cavity modes scatter at the anti-Stokes sidebands, it is demonstrated that both two-way and one-way steering can be achieved by adjusting the strength of the field driving the gain medium of the laser. Furthermore, it is showed that the direction of one-way steering can be controlled by varying the temperatures of the mechanical baths or the strengths of the optomechanical couplings. Additionally, it is revealed that the directionality of one-way steering depends on the modes fluctuation levels of the modes, with the mode exhibiting larger fluctuations determining the direction. This highly controllable scheme could potentially be realized with current technology, offering a promising platform for implementing one-way quantum information tasks.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"(Ann. Phys. 2/2025)","authors":"","doi":"10.1002/andp.202570003","DOIUrl":"https://doi.org/10.1002/andp.202570003","url":null,"abstract":"<p><b>Entanglement and Perfect One-Way EPR Steering in Cavity Magnonics System</b></p><p>In article number 2400307, Qi Guo and co-workers demonstrate that, for a cross-shaped cavity magnonics system, both the bipartite and tripartite entanglement, and the perfect one-way Einstein–Podolsky–Rosen (EPR) steering can be generated through the Kerr nonlinearity. Especially, different from the conventional protocols introducing additional unbalanced losses or noises, the presented scheme can manipulate the perfect one-way EPR steering only by adjusting the drive detuning. Therefore, the scheme provides a new insight for producing asymmetric EPR steering.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202570003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"Issue Information: Ann. Phys. 2/2025","authors":"","doi":"10.1002/andp.202570005","DOIUrl":"https://doi.org/10.1002/andp.202570005","url":null,"abstract":"","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202570005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"(Ann. Phys. 2/2025)","authors":"","doi":"10.1002/andp.202570004","DOIUrl":"https://doi.org/10.1002/andp.202570004","url":null,"abstract":"<p><b>Topological Nodal-Line Semimetal PbTaSe<sub>2</sub></b></p><p>A thermally induced structural phase transition and surface phonons are evidenced in the nodal-line semimetal PbTaSe<sub>2</sub> by a comprehensive investigation of temperature-dependent Raman and single-crystal X-ray diffraction measurements, supported by density functional theory-based phonon calculation. This behavior is ascribed to the intricate interaction between surface topology and the dynamics of the underlying lattice, as illustrated in the cover image. The results obtained by Vivek Kumar and Pradeep Kumar (see article number 2400277) present new challenges and opportunities in the domain of future quantum materials.\u0000 \u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202570004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143389104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}
{"title":"Preparation of Arbitrary High-Fidelity Decoherence-Free States for a Four-Qubit Hybrid System via Whispering-Gallery-Mode Microresonator","authors":"Fang-Fang Du, Ming Ma, Wen-Yao Liu","doi":"10.1002/andp.202400435","DOIUrl":"https://doi.org/10.1002/andp.202400435","url":null,"abstract":"<p>With the assistance of the practical nonlinear interaction of a nitrogen-vacancy (NV) center coupled with whispering-gallery-mode (WGM) microresonator, a heralded preparation protocol of four-qubit hybrid decoherence-free states (logical qubits) is presented, where a single logical qubit encoded on the state of the hybrid system composed of two polarization photons and two NV centers is fully protected against collective decoherence. Compared with the three-qubit decoherence-free states, the four-qubit decoherence-free states have higher dimensions, stronger collective decoherence resistance, richer quantum coherence and higher fault tolerance. For an ideal photon-NV interaction, the efficiencies and fidelities of the hybrid decoherence-free states can, in principle, be close to unity. Otherwise, being directed against a nonideal interaction, the two error-heralded quantum blocks of the preparation process make their fidelities near-perfect at the expense of slight reductions of their efficiencies. Moreover, this hybrid decoherence-free states work in a heralded way and may be experimentally feasible with current technique on regulating the NV-WGM microresonator system.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"“What Can a GNOME Do? Search Targets for the Global Network of Optical Magnetometers for Exotic Physics Searches”","authors":"","doi":"10.1002/andp.202400359","DOIUrl":"https://doi.org/10.1002/andp.202400359","url":null,"abstract":"<p>Samer Afach, Deniz Aybas Tumturk, Hendrik Bekker, Ben C. Buchler, Dmitry Budker, Kaleb Cervantes, Andrei Derevianko, Joshua Eby, Nataniel L. Figueroa, Ron Folman, Daniel Gavilán-Martín, Menachem Givon, Zoran D. Gruji´c, Hong Guo, Paul Hamilton, Morgan P. Hedges, Derek F. Jackson Kimball,<sup>*</sup> Sami Khamis, Dongok Kim, Emmanuel Klinger, Abaz Kryemadhi, Xiyu Liu, Grzegorz Łukasiewicz, Hector Masia-Roig, Mikhail Padniuk, Christopher A. Palm, Sun Yool Park, Heather R. Pearson, Xiang Peng, Maxim Pospelov, Szymon Pustelny, Yossi Rosenzweig, Ophir M. Ruimi, Theo Scholtes, Perrin C. Segura, Yannis K. Semertzidis, Yun Chang Shin, Joseph A. Smiga, Yevgeny V. Stadnik, Jason E. Stalnaker, Ibrahim A. Sulai, Dhruv Tandon, Kenneth Vu, Antoine Weis, Arne Wickenbrock, Tatum Z. Wilson, Teng Wu, Wei Xiao, Yucheng Yang, Dongrui Yu, Felix Yu, Jianwei Zhang, and Yixin Zhao, <i>Ann. Phys</i>. (<i>Berlin</i>) <b>2023</b>, 2300083 (2023)</p><p>https://doi.org/10.1002/andp.202300083</p><p>There is an incorrect citation of a grant number in the acknowledgements section. The correct grant acknowledgement should read:</p><p>The work of S.P. and G.L. was supported by the National Science Centre of Poland within the Opus program (grant <b>2020/39/B/ST2/01524</b>) and in part by the Excellence Initiative – Research University of the Jagiellonian University in Kraków.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"537 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202400359","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143595517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}