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Reports on progress in physics. Physical Society (Great Britain)最新文献

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Noise-reducing quantum key distribution. 降噪量子密钥分发。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-12-04 DOI: 10.1088/1361-6633/ad9505
Haoran Zhang, Wei Li, Ruihua He, Yan Zhang, Feihu Xu, Weibo Gao
{"title":"Noise-reducing quantum key distribution.","authors":"Haoran Zhang, Wei Li, Ruihua He, Yan Zhang, Feihu Xu, Weibo Gao","doi":"10.1088/1361-6633/ad9505","DOIUrl":"10.1088/1361-6633/ad9505","url":null,"abstract":"<p><p>Quantum key distribution (QKD) is a swiftly advancing field with the great potential to be ubiquitously adopted in quantum communication applications, attributed to its unique capability to offer ultimate end-to-end theoretical security. However, when transitioning QKD from theory to practice, environmental noise presents a significant impediment, often undermining the real-time efficacy of secure key rates. To uphold the operation of QKD systems, a myriad of protocols and experimental designs have been proposed to counteract the effects of noises. Even with real-time variations, the primary component of environmental noise can be modeled as a unitary evolution or background noise, which can be compensated or reduced with various noise-reducing schemes. This review provides an overview of design strategies for reducing noises in practical QKD systems under various circumstances. These strategies are evaluated based on their principles and suitability in real-world applications. Through this review, we aim to provide readers with a clear understanding of the logic behind these noise-reducing QKD designs, facilitating a smoother start of research and engineering in this field.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142683844","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
QCD evolution of entanglement entropy. 纠缠熵的 QCD 演化。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-12-02 DOI: 10.1088/1361-6633/ad910b
Martin Hentschinski, Dmitri E Kharzeev, Krzysztof Kutak, Zhoudunming Tu
{"title":"QCD evolution of entanglement entropy.","authors":"Martin Hentschinski, Dmitri E Kharzeev, Krzysztof Kutak, Zhoudunming Tu","doi":"10.1088/1361-6633/ad910b","DOIUrl":"10.1088/1361-6633/ad910b","url":null,"abstract":"<p><p>Entanglement entropy has emerged as a novel tool for probing nonperturbative quantum chromodynamics (QCD) phenomena, such as color confinement in protons. While recent studies have demonstrated its significant capability in describing hadron production in deep inelastic scatterings, the QCD evolution of entanglement entropy remains unexplored. In this work, we investigate the differential rapidity-dependent entanglement entropy within the proton and its connection to final-state hadrons, aiming to elucidate its QCD evolution. Our analysis reveals a strong agreement between the rapidity dependence of von Neumann entropy, obtained from QCD evolution equations, and the corresponding experimental data on hadron entropy. These findings provide compelling evidence for the emergence of a maximally entangled state, offering new insights into the nonperturbative structure of protons.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634277","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
On the internal bremsstrahlung accompanyingβ-decay and its potential relevance in the application of radioactive sources. 关于伴随β衰变的内部轫致辐射及其在放射源应用中的潜在意义。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-26 DOI: 10.1088/1361-6633/ad8f43
Antonio Italiano, Ernesto Amato, Daniele Pistone, Lucrezia Auditore
{"title":"On the internal bremsstrahlung accompanying<i>β</i>-decay and its potential relevance in the application of radioactive sources.","authors":"Antonio Italiano, Ernesto Amato, Daniele Pistone, Lucrezia Auditore","doi":"10.1088/1361-6633/ad8f43","DOIUrl":"10.1088/1361-6633/ad8f43","url":null,"abstract":"<p><p>An in-depth analysis of the decay process for<i>β</i>-emitting radionuclides highlights, for some of them, the existence of high-order effects usually not taken into account in literature as considered negligible in terms of energy and yield, and referred to as Internal Bremsstrahlung (IB). This set of<i>β</i>-radionuclides presents, besides their<i>β</i>spectrum, a continuous<i>γ</i>emission due to the Coulomb field braking action on the emitted electron following the decaying nucleus. In this work, we review the theoretical and experimental studies on the IB process focusing on its actual importance for the pure<i>β</i>emitters. It emerges that there is no satisfactory model able to reproduce the experimental IB distribution for most of the investigated beta emitters and the several measurements are sometimes at odds with each other. Moreover, as recently demonstrated, the IB process can give a relevant contribution to the physics of beta emitters thus requiring its inclusion in the physics of the beta decay. A discussion on the importance of considering IB process in both applicative fields such as nuclear medicine, industrial applications, and research or calibration laboratories, and in other relevant fields of particle physics or astrophysics, such as the research on dark matter or neutrino mass, is presented.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592085","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
Asynchronous quantum repeater using multiple quantum memory. 使用多量子存储器的异步量子中继器。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-25 DOI: 10.1088/1361-6633/ad91de
Chen-Long Li, Hua-Lei Yin, Zeng-Bing Chen
{"title":"Asynchronous quantum repeater using multiple quantum memory.","authors":"Chen-Long Li, Hua-Lei Yin, Zeng-Bing Chen","doi":"10.1088/1361-6633/ad91de","DOIUrl":"10.1088/1361-6633/ad91de","url":null,"abstract":"<p><p>A full-fledged quantum network relies on the formation of entangled links between remote location with the help of quantum repeaters. The famous Duan-Lukin-Cirac-Zoller quantum repeater protocol is based on long distance single-photon interference (SPI), which not only requires high phase stability but also cannot generate maximally entangled state. Here, we propose a quantum repeater protocol using the idea of post-matching, which retains the same efficiency as the SPI protocol, reduces the phase-stability requirement and can generate maximally entangled state in principle. We also outline an implementation of our scheme based on the Kerr nonlinear resonator. Numerical simulations show that our protocol has its superiority by comparing with existing protocols under a generic noise model and show the feasibility of building a large-scale quantum communication network with our scheme. We believe our work represents a crucial step towards the construction of a fully-connected quantum network.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634245","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
Uniqueness of glasses prepared via x-ray induced yielding. 通过 X 射线诱导屈服制备的玻璃的独特性。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-25 DOI: 10.1088/1361-6633/ad91df
Jacopo Baglioni, Alessandro Martinelli, Peihao Sun, Francesco Dallari, Fabian Westermeier, Michael Sprung, Gerhard Grübel, Giulio Monaco
{"title":"Uniqueness of glasses prepared via x-ray induced yielding.","authors":"Jacopo Baglioni, Alessandro Martinelli, Peihao Sun, Francesco Dallari, Fabian Westermeier, Michael Sprung, Gerhard Grübel, Giulio Monaco","doi":"10.1088/1361-6633/ad91df","DOIUrl":"10.1088/1361-6633/ad91df","url":null,"abstract":"<p><p>The yield point marks the beginning of plastic deformation for a solid subjected to sufficient stress, but it can alternatively be reached by x-ray irradiation. We characterize this latter route in terms of thermodynamics, structure and dynamics for a series of GeSe<sub>3</sub>chalcogenide glasses with different amount of disorder. We show that a sufficiently long irradiation at room temperature results in a stationary and unique yielding state, independent of the initial state of the glass. The glass at yield is more disordered and has higher enthalpy than the annealed glass, but its properties are not extreme: they rather match those of a glass instantaneously quenched from a temperature 20% higher than the glass-transition temperature. This is a well-known, key temperature for glass-forming liquids which marks the location of a dynamical transition, and it is remarkable that different glasses upon irradiation head all there.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634281","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
Abrikosov clusters in chiral liquid crystal droplets. 手性液晶液滴中的阿布里科索夫团簇
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-21 DOI: 10.1088/1361-6633/ad92a7
V Fernandez-Gonzalez, M G Clerc, G González-Cortés, P I Hidalgo, J Vergara
{"title":"Abrikosov clusters in chiral liquid crystal droplets.","authors":"V Fernandez-Gonzalez, M G Clerc, G González-Cortés, P I Hidalgo, J Vergara","doi":"10.1088/1361-6633/ad92a7","DOIUrl":"10.1088/1361-6633/ad92a7","url":null,"abstract":"<p><p>Self-organizing triangular lattices of topological vortices have been observed in type-II superconductors, Bose-Einstein condensates, and chiral magnets under external forcing. Liquid crystals exhibit vortex self-organization in dissipative media. In this study, we experimentally investigate the formation of vortex clusters, analogous to Abrikosov lattices, in temperature-driven chiral liquid crystal droplets. Based on a Ginzburg-Landau-like equation, we derive the interaction laws underlying the formation of these Abrikosov clusters of chiral domains. The origin of these is elucidated due to the competition between the repulsive interaction and the spatial effect of the confinement within the droplet. Our results advance the theoretical understanding of localized vortex self-organization in liquid crystals and open up possibilities for controlling the clustering of these topological defects.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634179","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
The rigid unit mode model: review of ideas and applications. 刚性单元模式：观点和应用回顾。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-20 DOI: 10.1088/1361-6633/acc7b7
Lei Tan, Volker Heine, Gong Li, Martin T Dove
{"title":"The rigid unit mode model: review of ideas and applications.","authors":"Lei Tan, Volker Heine, Gong Li, Martin T Dove","doi":"10.1088/1361-6633/acc7b7","DOIUrl":"10.1088/1361-6633/acc7b7","url":null,"abstract":"<p><p>We review a set of ideas concerning the flexibility of network materials, broadly defined as structures in which atoms form small polyhedral units that are connected at corners. One clear example is represented by the family of silica polymorphs, with structures composed of corner-linked SiO<sub>4</sub>tetrahedra. The rigid unit mode (RUM) is defined as any normal mode in which the structural polyhedra can translate and/or rotate without distortion, and since forces associated with changing the size and shape of the polyhedra are much stronger than those associated with rotations of two polyhedra around a shared vertex, the RUMs might be expected to have low frequencies compared to all other phonon modes. In this paper we discuss the flexibility of network structures, and how RUMs can arise in such structures, both in principle and in a number of specific examples of real systems. We also discuss applications of the RUM model, particularly for our understanding of phenomena such as displacive phase transitions and negative thermal expansion in network materials.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9547110","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
Interatomic and intermolecular decay processes in quantum fluid clusters. 量子流体团簇中的原子间和分子间衰变过程。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-19 DOI: 10.1088/1361-6633/ad8fbb
A C LaForge, L Ben Ltaief, S R Krishnan, N Sisourat, M Mudrich
{"title":"Interatomic and intermolecular decay processes in quantum fluid clusters.","authors":"A C LaForge, L Ben Ltaief, S R Krishnan, N Sisourat, M Mudrich","doi":"10.1088/1361-6633/ad8fbb","DOIUrl":"10.1088/1361-6633/ad8fbb","url":null,"abstract":"<p><p>In this comprehensive review, we explore interatomic and intermolecular correlated electronic decay phenomena observed in superfluid helium nanodroplets subjected to extreme ultraviolet radiation. Helium nanodroplets, known for their distinctive electronic and quantum fluid properties, provide an ideal environment for examining a variety of non-local electronic decay processes involving the transfer of energy, charge, or both between neighboring sites and resulting in ionization and the emission of low-kinetic energy electrons. Key processes include interatomic or intermolecular Coulombic decay and its variants, such as electron transfer-mediated decay. Insights gained from studying these light-matter interactions in helium nanodroplets enhance our understanding of the effects of ionizing radiation on other condensed-phase systems, including biological matter. We also emphasize the advanced experimental and computational techniques that make it possible to resolve electronic decay processes with high spectral and temporal precision. Utilizing ultrashort pulses from free-electron lasers, the temporal evolution of these processes can be followed, significantly advancing our comprehension of the dynamics within quantum fluid clusters and non-local electronic interactions in nanoscale systems.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142607563","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
Superscattering of light: fundamentals and applications. 光的超散射：基础与应用。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-11-18 DOI: 10.1088/1361-6633/ad8eda
Chan Wang, Xuhuinan Chen, Zheng Gong, Ruoxi Chen, Hao Hu, Huaping Wang, Yi Yang, Low Tony, Baile Zhang, Hongsheng Chen, Xiao Lin
{"title":"Superscattering of light: fundamentals and applications.","authors":"Chan Wang, Xuhuinan Chen, Zheng Gong, Ruoxi Chen, Hao Hu, Huaping Wang, Yi Yang, Low Tony, Baile Zhang, Hongsheng Chen, Xiao Lin","doi":"10.1088/1361-6633/ad8eda","DOIUrl":"10.1088/1361-6633/ad8eda","url":null,"abstract":"<p><p>Superscattering, theoretically predicted in 2010 and experimentally observed in 2019, is an exotic scattering phenomenon of light from subwavelength nanostructures. In principle, superscattering allows for an arbitrarily large total scattering cross section, due to the degenerate resonance of eigenmodes or channels. Consequently, the total scattering cross section of a superscatterer can be significantly enhanced, far exceeding the so-called single-channel limit. Superscattering offers a unique avenue for enhancing light-matter interactions and can enable numerous practical applications, ranging from sensing, light trapping, bioimaging, and communications to optoelectronics. This paper provides a comprehensive review of the recent progress and developments in the superscattering of light, with a specific focus on elucidating its theoretical origins, experimental observations, and manipulations. Moreover, we offer an outlook on future research directions in superscattering, including potential realizations of directional superscattering, scattering-free plasmonic superscattering, enhancement of free-electron radiation and the Purcell effect via superscatterers, inelastic superscattering, and superscattering of non-electromagnetic waves.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584944","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 phase transitions via attosecond x-ray absorption spectroscopy. 通过阿秒 X 射线吸收光谱实现拓扑相变。
Reports on progress in physics. Physical Society (Great Britain) Pub Date : 2024-10-29 DOI: 10.1088/1361-6633/ad889f
Juan F P Mosquera, Giovanni Cistaro, Mikhail Malakhov, Emilio Pisanty, Alexandre Dauphin, Luis Plaja, Alexis Chacón, Maciej Lewenstein, Antonio Picón
{"title":"Topological phase transitions via attosecond x-ray absorption spectroscopy.","authors":"Juan F P Mosquera, Giovanni Cistaro, Mikhail Malakhov, Emilio Pisanty, Alexandre Dauphin, Luis Plaja, Alexis Chacón, Maciej Lewenstein, Antonio Picón","doi":"10.1088/1361-6633/ad889f","DOIUrl":"10.1088/1361-6633/ad889f","url":null,"abstract":"<p><p>We present a numerical experiment that demonstrates the possibility to capture topological phase transitions via an x-ray absorption spectroscopy scheme. We consider a Chern insulator whose topological phase is tuned via a second-order hopping. We perform time-dynamics simulations of the out-of-equilibrium laser-driven electron motion that enables us to model a realistic attosecond spectroscopy scheme. In particular, we use an ultrafast scheme with a circularly polarized IR pump pulse and an attosecond x-ray probe pulse. A laser-induced dichroism-type spectrum shows a clear signature of the topological phase transition. We are able to connect these signatures with the Berry structure of the system. This work extend the applications of attosecond absorption spectroscopy to systems presenting a non-trivial topological phase.</p>","PeriodicalId":74666,"journal":{"name":"Reports on progress in physics. Physical Society (Great Britain)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142482694","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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