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Masthead: Ann. Phys. 6/2024 刊头Ann.6/2024
IF 2.4 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-06-09 DOI: 10.1002/andp.202470014
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引用次数: 0
(Ann. Phys. 6/2024) (Ann. Phys. 6/2024)
IF 2.4 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-06-09 DOI: 10.1002/andp.202470013
{"title":"(Ann. Phys. 6/2024)","authors":"","doi":"10.1002/andp.202470013","DOIUrl":"https://doi.org/10.1002/andp.202470013","url":null,"abstract":"<p><b>Matrix-Product State Approach</b></p><p>The atomic nucleus contains particles that form interacting pairs, mirroring the Cooper pairs observed in superconductors. These pairs are traditionally analyzed using the mean-field technique pioneered by Bardeen, Cooper, and Schrieffer (BCS). However, the matrix-product state (MPS) approach, originally developed for one-dimensional spin chains in condensed-matter physics, offers a significant advancement. This method enables the precise computation of nuclear properties from both simple and more generalized pairing Hamiltonians, eliminating the artifacts commonly associated with mean-field approximations. For further details, see article number 2300436 by Roman Rausch and co-workers.\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":"536 6","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202470013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141294973","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}
引用次数: 0
Entanglement Protection Using Weak Measurement in Non-Markovian Environment 在非马尔可夫环境中利用弱测量保护纠缠
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-06-09 DOI: 10.1002/andp.202400091
Xiuyi Yang, Feng Zhang, Hongjie Yin, Jing Nie
{"title":"Entanglement Protection Using Weak Measurement in Non-Markovian Environment","authors":"Xiuyi Yang,&nbsp;Feng Zhang,&nbsp;Hongjie Yin,&nbsp;Jing Nie","doi":"10.1002/andp.202400091","DOIUrl":"10.1002/andp.202400091","url":null,"abstract":"<p>In this work, a scheme to protect quantum entanglement from a non-Markovian noisy environment is proposed. By applying two quantum weak measurements before and after sending the quantum state into the noisy channel, the quantum state can be “pushed” closer to a decoherence-free state, reducing decoherence during the time evolution. Then, the second weak measurement can partially retrieve the initial quantum state from the state corrupted by the noisy environment. The study involves a non-Markovian dynamic equation to examine the impact of the memory effect on the protection scheme's performance. Various factors affecting the residual entanglement and the success probability are analyzed. The results suggest that two measurement strengths shall be chosen approximately in a linear relation, with the best ratio determined by the memory time of the environment. Additionally, it is demonstrated that the memory effect significantly enhances the protection efficiency. Lastly, the scheme's robustness against systematic errors is evaluated. </p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141367143","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}
引用次数: 0
Non-Hermitian Bonding and Electronic Reconfiguration of Ba2ScNbO6 and Ba2LuNbO6 Ba2ScNbO6 和 Ba2LuNbO6 的非赫米特键合和电子重构
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-30 DOI: 10.1002/andp.202400040
Yaorui Tan, Maolin Bo
{"title":"Non-Hermitian Bonding and Electronic Reconfiguration of Ba2ScNbO6 and Ba2LuNbO6","authors":"Yaorui Tan,&nbsp;Maolin Bo","doi":"10.1002/andp.202400040","DOIUrl":"10.1002/andp.202400040","url":null,"abstract":"<p>Despite the extensive applications of perovskite compounds, the precise nature of non-Hermitian bonding in these materials remains poorly understood. In this study, density functional theory calculations are performed to determine the electronic structures of perovskite compounds. In particular, the bandgaps of Ba<sub>2</sub>ScNbO<sub>6</sub> and Ba<sub>2</sub>LuNbO<sub>6</sub> are found to be 2.617 and 2.629 eV, respectively, and the deformation bond energies and non-Hermitian bonding of these compounds are calculated. The relationship between the non-Hermitian zeros of the O-Nb bond of Ba<sub>2</sub>ScNbO<sub>6</sub> and the non-Hermitian zeros of the Sc-O bond is found to be similar but with varying sizes. Further, in-depth research on non-Hermitian chemistry verified that precise control of atomic bonding and electron states can be achieved, providing new insights into the study of chemical bonds.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191871","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}
引用次数: 0
Improving on Complexity: Ideas for Enhancing Quantitative Modeling of Climate Mobility 提高复杂性：加强气候流动性定量建模的思路
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-30 DOI: 10.1002/andp.202300545
Sidney Michelini, Kristina Petrova, Chen Chris Gong, Karim Zantout
{"title":"Improving on Complexity: Ideas for Enhancing Quantitative Modeling of Climate Mobility","authors":"Sidney Michelini,&nbsp;Kristina Petrova,&nbsp;Chen Chris Gong,&nbsp;Karim Zantout","doi":"10.1002/andp.202300545","DOIUrl":"10.1002/andp.202300545","url":null,"abstract":"<p>Quantitative climate mobility research has, so far, focused primarily on climate change impacts on migration outcomes. This focus has led to a separation between quantitative climate migration research and the broader field of migration studies. In this paper ways are proposed for quantitative research to better address the complexity in the relationship between climate change and mobility. First technical suggestions are presented to improve upon migration model setups and designs and highlight promising developments. Then it is argued that quantitative methodologies can broaden the scope of research inquiries by examining how climate mitigation and adaptation efforts influence mobility, as well as assessing how mobility itself impacts vulnerability.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202300545","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141191973","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}
引用次数: 0
Weak Force Sensing Based on Optical Parametric Amplification in a Cavity Optomechanical System Coupled in Series with Two Oscillators 基于与两个振荡器串联的腔体光机械系统中的光参量放大的弱力感应
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-26 DOI: 10.1002/andp.202400018
Zheng Liu, Yu-qiang Liu, Yi-jia Yang, Chang-shui Yu
{"title":"Weak Force Sensing Based on Optical Parametric Amplification in a Cavity Optomechanical System Coupled in Series with Two Oscillators","authors":"Zheng Liu,&nbsp;Yu-qiang Liu,&nbsp;Yi-jia Yang,&nbsp;Chang-shui Yu","doi":"10.1002/andp.202400018","DOIUrl":"10.1002/andp.202400018","url":null,"abstract":"<p>In the realm weak force sensing, an important issue is to suppress fundamental noise (quantum noise and thermal noise), as they limit the accuracy of force measurement. In this study, a weak force sensing scheme that combines a degenerate optical parametric amplifier (OPA) and an auxiliary mechanical oscillator into a cavity optomechanical system to reduce quantum noise is investigated. It is demonstrated that the noise reduction of two coupled oscillators depends on their norm mode splitting. and provide a classic analogy and quantum perspective for further clarification. Besides, the noise reduction mechanism of OPA is to reduce the fluctuation of photon number and enhance the squeezing of the cavity field. A specific design is proposed that aimed at enhancing the joint effect of both, beyond what can be achieved using OPA alone or two series coupled oscillators. This scheme provides a new perspective for deeper understanding of cavity field squeezing and auxiliary oscillator in force sensing.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141169395","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}
引用次数: 0
Spin Transport in High-Field Superconductors 高场超导体中的自旋传输
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-25 DOI: 10.1002/andp.202400054
Detlef Beckmann
{"title":"Spin Transport in High-Field Superconductors","authors":"Detlef Beckmann","doi":"10.1002/andp.202400054","DOIUrl":"10.1002/andp.202400054","url":null,"abstract":"<p>High-field superconductors are characterized by a spin splitting of the density of states, giving rise to spin transport phenomena. This includes spin-polarized tunneling, spin-dependent thermoelectric effects, long-range quasiparticle spin transport, and spin-dependent coupling of supercurrents and quasiparticles. This review gives a brief overview of the theory background, recent experimental progress in the field, and an outlook on open problems and possible applications.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/andp.202400054","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147957","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}
引用次数: 0
Tight Bounds from Multiple-Observable Entropic Uncertainty Relations 从多重可观测的熵不确定性关系中得出严格界限
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-23 DOI: 10.1002/andp.202400020
Alberto Riccardi, Giovanni Chesi, Chiara Macchiavello, Lorenzo Maccone
{"title":"Tight Bounds from Multiple-Observable Entropic Uncertainty Relations","authors":"Alberto Riccardi,&nbsp;Giovanni Chesi,&nbsp;Chiara Macchiavello,&nbsp;Lorenzo Maccone","doi":"10.1002/andp.202400020","DOIUrl":"10.1002/andp.202400020","url":null,"abstract":"<p>The additivity properties for both bipartite and multipartite systems are investigated by using entropic uncertainty relations (EUR) defined in terms of the joint Shannon entropy of probabilities of local measurement outcomes. In particular, state-independent and state-dependent entropic inequalities are introduced. Interestingly, the violation of these inequalities is strictly connected with the presence of quantum correlations. It is shown that the additivity of EUR holds only for EUR that involve two observables, while this is not the case for inequalities that consider more than two observables or the addition of the von Neumann entropy of a subsystem. They are applied to bipartite systems and to several classes of states of a three-qubit system.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141147954","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}
引用次数: 0
Transmissions in Gapped Graphene Exposed to Tilting and Oscillating Barriers 暴露于倾斜和振荡壁垒的间隙石墨烯中的传输
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-23 DOI: 10.1002/andp.202400010
Miloud Mekkaoui, Ahmed Jellal, Abderrahim El Mouhafid
{"title":"Transmissions in Gapped Graphene Exposed to Tilting and Oscillating Barriers","authors":"Miloud Mekkaoui,&nbsp;Ahmed Jellal,&nbsp;Abderrahim El Mouhafid","doi":"10.1002/andp.202400010","DOIUrl":"10.1002/andp.202400010","url":null,"abstract":"<p>The transmissions of fermions are investigated through gapped graphene structures by employing a combination of double barrier tilting and a time-oscillating potential. The latter introduces additional sidebands into the transmission probability that manifest at energy levels determined by the frequency and incident energy. These sidebands arise from the absorption or emission of photons generated by the oscillating potential. It is demonstrated that the tilting and positioning of the scattering events within the barriers play a crucial role in determining the peak of tunneling resistance. In particular, the presence of a mid-barrier-embedded scatter leads to a transition from a peak to a cusp when the incident energy reaches the Dirac point within a barrier. Additionally, it is that introducing a time-varying potential results in transmissions dispersing across both the central band and the sidebands.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141107754","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}
引用次数: 0
Multimodality Image Segmentation Embedded with Metasurface Encoder 嵌入元表面编码器的多模态图像分割技术
IF 2.2 4区 物理与天体物理
Annalen der Physik Pub Date : 2024-05-23 DOI: 10.1002/andp.202400017
Yaxiong Xu, Bei Wu, Hui Jin, Chao Qian, Hongsheng Chen
{"title":"Multimodality Image Segmentation Embedded with Metasurface Encoder","authors":"Yaxiong Xu,&nbsp;Bei Wu,&nbsp;Hui Jin,&nbsp;Chao Qian,&nbsp;Hongsheng Chen","doi":"10.1002/andp.202400017","DOIUrl":"10.1002/andp.202400017","url":null,"abstract":"<p>Feature dimensionality plays an important role for modern medical diagnosis and image processing. In this work, the study introduces an optoelectronic neural network for multimodal image segmentation, which dramatically improves computing speed and decreases imaging acquisition cost in brain tumor diagnostics. Multi-layer metasurfaces are utilized as an image preprocessor that reduces image dimensionality at the physical layer. The low-dimensional image is then processed to a U-Net semantic segmentation network, to handle the complex and heterogeneous nature of brain image data. By using diffractive neural network, the metasurface encoder is optimized and physically constructed with high-efficiency transmission metasurfaces. The entire optoelectronic network attains a structural similarity index measure (SSIM) of 96%, demonstrating its potential to revolutionize on-site medical image processing with its high precision in segmenting brain imaging data.</p>","PeriodicalId":7896,"journal":{"name":"Annalen der Physik","volume":"536 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141107455","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}
引用次数: 0
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