物理与天体物理最新文献_第5页

Degenerate and Irregular Topological Recursion

IF 2.2 1区物理与天体物理

Communications in Mathematical Physics Pub Date : 2025-04-04 DOI: 10.1007/s00220-025-05274-w

A. Alexandrov, B. Bychkov, P. Dunin-Barkowski, M. Kazarian, S. Shadrin

引用次数: 0

Passive Environment-Assisted Quantum Communication with GKP States

IF 12.5 1区物理与天体物理

Physical Review X Pub Date : 2025-04-04 DOI: 10.1103/physrevx.15.021003

Zhaoyou Wang, Liang Jiang

{"title":"Passive Environment-Assisted Quantum Communication with GKP States","authors":"Zhaoyou Wang, Liang Jiang","doi":"10.1103/physrevx.15.021003","DOIUrl":"https://doi.org/10.1103/physrevx.15.021003","url":null,"abstract":"Bosonic pure-loss channel, which represents the process of photons decaying into a vacuum environment, has zero quantum capacity when the channel’s transmissivity is less than 50%. Modeled as a beam splitter interaction between the system and its environment, the performance of bosonic pure-loss channel can be enhanced by controlling the environment state. We show that by choosing the ideal Gottesman-Kitaev-Preskill (GKP) states for the system and its environment, perfect transmission of quantum information through a beam splitter is achievable at arbitrarily low transmissivities. Our explicit constructions allow for experimental demonstration of the improved performance of a quantum channel through passive environment assistance, which is potentially useful for quantum transduction where the environment state can be naturally controlled. In practice, it is crucial to consider finite-energy constraints, and high-fidelity quantum communication through a beam splitter remains achievable with GKP states at the few-photon level. Published by the American Physical Society 2025 ","PeriodicalId":20161,"journal":{"name":"Physical Review X","volume":"24 1","pages":""},"PeriodicalIF":12.5,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The influence of contact resistance and interface layers in extraordinary magnetoresistance devices

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-04-04 DOI: 10.1063/5.0237591

Sreejith Sasi Kumar, Lou Bork, Stefan Pollok, Rasmus Bjørk, Dennis Valbjørn Christensen

{"title":"The influence of contact resistance and interface layers in extraordinary magnetoresistance devices","authors":"Sreejith Sasi Kumar, Lou Bork, Stefan Pollok, Rasmus Bjørk, Dennis Valbjørn Christensen","doi":"10.1063/5.0237591","DOIUrl":"https://doi.org/10.1063/5.0237591","url":null,"abstract":"The electrical resistance change of a device when subjected to applied magnetic fields is essential for magnetoresistive magnetometers as well as for studying fundamental transport phenomena in condensed matter. One of the largest magnetoresistances at room temperature is observed in extraordinary magnetoresistance (EMR) devices composed of high-mobility materials with metal inclusions. However, the contact resistance between the constituent materials is often detrimental to their performance. In this work, we study the influence of the interface-near region on the performance of EMR devices using a numerical model, which mimics local doping, carrier depletion, and mobility degradation by independently varying the carrier density and mobility of an interfacial layer. We show that the magnetoresistance decreases by five orders of magnitude when the specific contact resistance increases from 10−5 to 10−2Ω cm2. Our results also show that it is beneficial to increase the conductivity of the interface layer, even at the expense of degrading either its carrier density or mobility. This study paves the way for designing contacting strategies for realizing high-performing EMR devices.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"36 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Surface photosensitization enabled by embedded plasmonic nanoparticles in ferroelectric crystals for laser-induced periodic surface structures

IF 4 2区物理与天体物理

Applied Physics Letters Pub Date : 2025-04-04 DOI: 10.1063/5.0257826

Zhixiang Chen, Quanxin Yang, Ning Lu, Xingjuan Zhao, Shengqiang Zhou, Hongliang Liu, Karsten Buse, Yuechen Jia, Feng Chen

{"title":"Surface photosensitization enabled by embedded plasmonic nanoparticles in ferroelectric crystals for laser-induced periodic surface structures","authors":"Zhixiang Chen, Quanxin Yang, Ning Lu, Xingjuan Zhao, Shengqiang Zhou, Hongliang Liu, Karsten Buse, Yuechen Jia, Feng Chen","doi":"10.1063/5.0257826","DOIUrl":"https://doi.org/10.1063/5.0257826","url":null,"abstract":"Dielectric crystals, despite their rich optical properties and great potential in integrated optoelectronics, had generally fallen behind the competing photonic platforms, mainly due to the significant difficulties of material processing. By combining the unique capabilities of ion implantation in photosensitization and femtosecond laser direct writing (FsLDW) in nanostructuring, in this study, we propose an innovative methodology harnessing the high energy of focused femtosecond laser and the localized surface plasmon resonance (LSPR) of embedded metal nanoparticles (NPs). Such a combination leverages the ion-implantation-induced lattice damage as well as the LSPR-induced enhanced near-field enhancement and photothermal effects to relax the parameter threshold for laser-induced periodic surface structure formation in LiTaO3. To investigate the origin of such a “threshold lowering” phenomenon, ion-implantation-induced softened phonon modes and lattice distortion as well as FsLDW-induced self-assembly of NPs and ferroelectric domain inversion are both analyzed, and the synergistic action of these effects is found to be the key factor. Since both ion implantation and FsLDW feature a wide range material applicability and parameter flexibility, our work is an approach of surface multifunctionalization and nanostructuring of dielectric crystal families.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"15 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Improved Tomographic Reconstruction of 3D Global Coronal Density from STEREO/COR1 Observations

IF 2.7 3区物理与天体物理

Solar Physics Pub Date : 2025-04-03 DOI: 10.1007/s11207-025-02454-8

Tongjiang Wang, C. Nick Arge, Shaela I. Jones

{"title":"Improved Tomographic Reconstruction of 3D Global Coronal Density from STEREO/COR1 Observations","authors":"Tongjiang Wang, C. Nick Arge, Shaela I. Jones","doi":"10.1007/s11207-025-02454-8","DOIUrl":"10.1007/s11207-025-02454-8","url":null,"abstract":"<div><p>Tomography is a powerful technique for recovering the three-dimensional (3D) density structure of the global solar corona. In this work, we present an improved tomography method by introducing radial weighting in the regularization term. Radial weighting provides balanced smoothing of density values across different heights, helping to recover finer structures at lower heights while also stabilizing the solution and preventing oscillatory artifacts at higher altitudes. We apply this technique to reconstruct the 3D electron density of Carrington Rotation (CR) 2098 using two weeks of polarized brightness (pB) observations from the inner coronagraph (COR1) on board spacecraft-B of the twin Solar Terrestrial Relations Observatory (STEREO), where the radial weighting function is taken as the inverse intensity background, calculated by averaging all the pB images used. Comparisons between density distributions at various heights from the tomography and magnetohydrodynamics (MHD) simulations show good agreement. We find that radial weighting not only effectively corrects the oversmoothing effect near the inner boundary in reconstructions using second-order smoothing but also significantly improves reconstruction quality when using zero-order smoothing. Additionally, comparing reconstructions for CR 2091 from single-satellite data with that from multiviewpoint data suggests that coronal evolution and dynamics may significantly impact on the reconstructed density structures. This improved tomography method has been used to create a database of 3D densities for CRs 2052 to 2154, based on STEREO/COR1-B data, covering the period from 08 January 2007 to 17 September 2014.</p></div>","PeriodicalId":777,"journal":{"name":"Solar Physics","volume":"300 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Turbulence Evolution Between 0.5 and 1 AU for the Solar Wind of Various Origins

IF 2.7 3区物理与天体物理

Solar Physics Pub Date : 2025-04-03 DOI: 10.1007/s11207-025-02458-4

Liudmila Rakhmanova, Maria Riazantseva, Yuri Yermolaev, Alexander Khokhlachev, Georgy Zastenker

引用次数: 0

Plasma Emission Spectrum Formed during Micropoint Explosion

IF 0.6 4区物理与天体物理

Bulletin of the Lebedev Physics Institute Pub Date : 2025-04-03 DOI: 10.3103/S1068335624601973

E. V. Oreshkin

引用次数: 0

High-energy, high-repetition-rate LD side-pumped burst-mode green laser

IF 4.6 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-04-03 DOI: 10.1016/j.optlastec.2025.112841

Teng Kan , Peilin Li , Qiang Liu

引用次数: 0

Precision blood biopsy for lung cancer diagnosis using a targeting nanoprobe to detect multiple mRNA biomarkers in circulating malignant cells

IF 15 1区物理与天体物理

Applied physics reviews Pub Date : 2025-04-03 DOI: 10.1063/5.0245467

Di Han, Xin-Ru Liao, Qi-Yang Huang, Qing-Yu Gao, Li-Jin Qi, Jin-Ju Lei, Jing-Ping Yuan, Xiao-Yan He, Tao Guo, Xian-Zheng Zhang, Si-Xue Cheng

{"title":"Precision blood biopsy for lung cancer diagnosis using a targeting nanoprobe to detect multiple mRNA biomarkers in circulating malignant cells","authors":"Di Han, Xin-Ru Liao, Qi-Yang Huang, Qing-Yu Gao, Li-Jin Qi, Jin-Ju Lei, Jing-Ping Yuan, Xiao-Yan He, Tao Guo, Xian-Zheng Zhang, Si-Xue Cheng","doi":"10.1063/5.0245467","DOIUrl":"https://doi.org/10.1063/5.0245467","url":null,"abstract":"Compared to tissue biopsy, blood biopsy offers significant advantages in terms of safety and convenience. However, achieving accurate blood biopsy for cancer pathological diagnosis presents substantial challenges. Herein, we have developed a precision blood biopsy technology utilizing a malignant cell-targeted nanoprobe for lung cancer diagnosis. The nanoprobe functionalized with SYL3C-conjugated hyaluronic acid and the KALA-GE11 peptide can efficiently deliver the loaded molecular beacons into heterogeneous circulating malignant cells (CMCs) in whole blood to detect diverse intracellular mRNA markers, including the proliferation marker Ki67, the oncogenic marker c-Myc, and thyroid transcription factor 1 (TTF-1) typically expressed in specific types of lung cancers. The simultaneous detection of various markers not only reduces false-negative rates caused by the high heterogeneity of CMCs but also provides accurate insight into the specific heterogeneity of CMCs for individual patients. The nanoprobe can differentiate lung adenocarcinoma (LAD) and small cell lung cancer (SCLC) from squamous cell carcinoma (SCC). TTF-1 is abundant in CMCs of LAD and SCLC but is relatively less common in SCC. c-Myc is more frequently overexpressed in CMCs from LAD and SCLC. Notably, Ki67 is upregulated in most CMCs across all lung cancer types. Furthermore, this approach can sensitively identify malignant cells from early stage lesions clinically classified as noninvasive carcinoma in situ. This technique holds significant clinical potentials for the early detection and precise characterization of lung cancer. Importantly, this strategy is adaptable for detecting other biomarkers, thereby extending its applicability to the diagnosis of various cancer types.","PeriodicalId":8200,"journal":{"name":"Applied physics reviews","volume":"51 1","pages":""},"PeriodicalIF":15.0,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143775431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

On the Characterization of a “Campo del Cielo” Meteorite Using Photon Energy Interaction and Radiation Absorption Parameters

IF 1.5 4区物理与天体物理

Brazilian Journal of Physics Pub Date : 2025-04-03 DOI: 10.1007/s13538-025-01762-5

Karuane S. Kodum, Antonio Liccardo, Sérgio C. Saab, André M. Brinatti, Luiz F. Pires

{"title":"On the Characterization of a “Campo del Cielo” Meteorite Using Photon Energy Interaction and Radiation Absorption Parameters","authors":"Karuane S. Kodum, Antonio Liccardo, Sérgio C. Saab, André M. Brinatti, Luiz F. Pires","doi":"10.1007/s13538-025-01762-5","DOIUrl":"10.1007/s13538-025-01762-5","url":null,"abstract":"<div><p>Research on the impact of meteorite chemical composition on radiation interaction parameters is scarce. Understanding how photons of varying energies interact with meteorites is fundamental to grasp these extraterrestrial bodies and facilitate future space missions. Our research utilized scanning electron microscopy and X-ray fluorescence techniques to analyze the elemental composition of meteorites found in the regions called “Campo del Cielo,” in Argentina. Scientists discovered the second heaviest meteorite in this planetary region, composed primarily of Fe and Ni, which comprise over 95% of its chemical composition based on our results. The meteorite fragments studied presented Fe and Ni contents ranging from 88.55 to 93.56% and 5.55 to 7.24%, respectively. This result confirms that the meteorite studied belongs to the IAB Og group. No differences were observed in the attenuation coefficient or in the atomic and electronic cross-sections due to variations in photon energy. Similarities in the chemical composition of the fragment samples explain this result. The molecular cross-section was more sensitive to differences in the chemical composition of the samples, mainly influenced by the dependence of this parameter on the molecular weight of the elements of the fragment studied. The effective atomic number and electronic density were also sensitive to the chemical composition of the samples, mainly due to the Ni content. The fact that the meteorite studied is mostly made of Fe and Ni shows that this material has a high capacity for attenuating radiation and can effectively shield radiation. This result could be of great interest, especially in future space missions when materials found in space could be used to provide protection against radiation.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769767","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