物理与天体物理最新文献_第10页

Picosecond Expansion in LaAlO3 Resonantly Driven by Infrared-Active Phonons 红外主动声子驱动LaAlO3的皮秒级膨胀

IF 8.6 1区物理与天体物理

Physical review letters Pub Date : 2025-09-12 DOI: 10.1103/vzkw-n2bm

Jakob Gollwitzer, Jeffrey Z. Kaaret, Y. Eren Suyolcu, Guru Khalsa, Rylan C. Fernandes, Oleg Gorobtsov, Sören Buchenau, ChanJu You, Jayanti Higgins, Ryan S. Russell, Ziming Shao, Yorick A. Birkhölzer, Takahiro Sato, Matthieu Chollet, Giacomo Coslovich, Mario Brützam, Christo Guguschev, John W. Harter, Ankit S. Disa, Darrell G. Schlom, Nicole A. Benedek, Andrej Singer

引用次数: 0

Defects and phases of higher rank abelian GLSMs 高阶阿贝尔glsm的缺陷和相位

IF 1.4 3区物理与天体物理

Letters in Mathematical Physics Pub Date : 2025-09-12 DOI: 10.1007/s11005-025-01989-y

Ilka Brunner, Daniel Roggenkamp, Christian P. M. Schneider

{"title":"Defects and phases of higher rank abelian GLSMs","authors":"Ilka Brunner, Daniel Roggenkamp, Christian P. M. Schneider","doi":"10.1007/s11005-025-01989-y","DOIUrl":"10.1007/s11005-025-01989-y","url":null,"abstract":"<div><p>We construct defects describing the transition between different phases of gauged linear sigma models with higher rank abelian gauge groups, as well as defects embedding these phases into the GLSMs. Our construction refers entirely to the sector protected by B-type supersymmetry, decoupling the gauge sector. It relies on an abstract characterization of such transition defects and does not involve an actual perturbative analysis. It turns out that the choices that are required to characterize consistent transition defects match with the homotopy classes of paths between different phases. Our method applies to non-anomalous as well as anomalous GLSMs, and we illustrate both cases with examples. This includes the GLSM associated to the resolution of the <span>(A_N)</span> singularity and one describing the entire parameter space of <span>(N=2)</span> minimal models, in particular, the relevant flows between them. Via fusion with boundary conditions, the defects we construct yield functors describing the transport of D-branes on parameter space. We find that our results match with known results on D-brane transport.</p></div>","PeriodicalId":685,"journal":{"name":"Letters in Mathematical Physics","volume":"115 5","pages":""},"PeriodicalIF":1.4,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11005-025-01989-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Microplastics analysis through a surface plasmon resonance microscopic system tailored for polymers detection 通过为聚合物检测量身定制的表面等离子体共振显微系统分析微塑料

IF 5 2区物理与天体物理

Optics and Laser Technology Pub Date : 2025-09-12 DOI: 10.1016/j.optlastec.2025.113908

Natalia A. Gutierrez Andrade , Koen Vanmol , Yunfeng Nie , Wendy Meulebroeck , Heidi Ottevaere

{"title":"Microplastics analysis through a surface plasmon resonance microscopic system tailored for polymers detection","authors":"Natalia A. Gutierrez Andrade , Koen Vanmol , Yunfeng Nie , Wendy Meulebroeck , Heidi Ottevaere","doi":"10.1016/j.optlastec.2025.113908","DOIUrl":"10.1016/j.optlastec.2025.113908","url":null,"abstract":"<div><div>Microplastic pollution is a major global environmental concern owing to its pervasive presence and impact on human and ecological health. Achieving a reliable method for analysing microplastics is crucial for mitigating this issue. However, current microplastic detection and characterisation approaches are often time-consuming and limited to certain polymers. Surface Plasmon Resonance (SPR) is a promising alternative that offers real-time, high-sensitivity measurements. While existing SPR methods typically focus on single-parameter measurements, this study introduces an SPR-based microscopic system that uses surface plasmon resonance to detect three distinct polymer types individually, while simultaneously determining their particle size and quantity. We designed a specialised prism for the SPR imaging of each polymer (IP-Dip2, IP-PDMS, and polypropylene (PP)) and incorporated it into an SPR imaging optical system. The corresponding polymer images were processed for noise reduction and distortion correction, enabling particle size and quantity estimation. Initial tests on IP-Dip2 and IP-PDMS microplastics validated the optical setup and image-analysis procedures, confirming consistent system performance and yielding lateral resolutions of 22.76 µm and 14.64 µm, respectively.. Experiments on PP microparticles further demonstrated reliable measurement of particle parameters with a lateral resolution of 18.98 µm, indicating the feasibility of this integrated approach for analysing various polymer samples. The results of this study highlight the potential of SPR imaging to address multiple crucial parameters in microplastic samples, thereby overcoming several current methodological constraints and contributing to the development of SPR for microplastic analysis.</div></div>","PeriodicalId":19511,"journal":{"name":"Optics and Laser Technology","volume":"192 ","pages":"Article 113908"},"PeriodicalIF":5.0,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145044087","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

Comment on “Narrow-band infrared radiation characteristics of rocket exhaust plume by using correction function related to thermodynamic state” 对“利用热力学态修正函数研究火箭排气羽流窄带红外辐射特性”一文的评析

IF 3.4 3区物理与天体物理

Infrared Physics & Technology Pub Date : 2025-09-12 DOI: 10.1016/j.infrared.2025.106092

Umut Kayikci, Furkan Gocer, Damla Akcaoglu, Kutay Kisadere, Mustafa Sivasligil

引用次数: 0

Power of the cosmic web 宇宙网的力量

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-09-12 DOI: 10.1103/grx3-hj7w

James Sunseri, Adrian E. Bayer, Jia Liu

引用次数: 0

Charmonium-nucleon femtoscopic correlation function 查莫尼-核子飞镜相关函数

IF 5 2区物理与天体物理

Physical Review D Pub Date : 2025-09-12 DOI: 10.1103/3bdh-blwh

Zhi-Wei Liu, Duo-Lun Ge, Jun-Xu Lu, Ming-Zhu Liu, Li-Sheng Geng

引用次数: 0

Potential 4.35-year quasi-periodic oscillation in (gamma )-ray emission from BL Lac J0811.4(+)0146 BL Lac J0811.4 (+) 0146中(gamma )射线发射的潜在4.35年准周期振荡

IF 1.6 4区物理与天体物理

Journal of Astrophysics and Astronomy Pub Date : 2025-09-12 DOI: 10.1007/s12036-025-10094-4

Min Jin, Feng-Rong Zhu, Bing-Kai Zhang

{"title":"Potential 4.35-year quasi-periodic oscillation in (gamma )-ray emission from BL Lac J0811.4(+)0146","authors":"Min Jin, Feng-Rong Zhu, Bing-Kai Zhang","doi":"10.1007/s12036-025-10094-4","DOIUrl":"10.1007/s12036-025-10094-4","url":null,"abstract":"<div><p>Fermi Large Area Telescope (Fermi-LAT) observations reveal a significant population of blazars, and recent astrophysical research has focused on exploring flux variations in blazars. Up to now, Fermi-LAT has discovered a significant number of blazars, displaying quasi-periodic behaviour. In this study, Fermi-LAT data is utilized to construct the <span>(gamma )</span>-ray light curve for blazar J0811.4<span>(+)</span>0146 spanning from August 2008 to November 2024, covering 16 years of observations. Four distinct methods, namely, Lomb–Scargle periodogram (LSP), Weighted wavelet Z-transform (WWZ), discrete correlation function (DCF) and Jurkevich (JV), are employed to investigate <span>(gamma )</span>-ray emissions from this blazar in detail. The analysis reveals quasi-periodic oscillation (QPO) behaviour with a period of <span>(4.35 pm 0.34)</span> years. Significance of this QPO is assessed using Monte Carlo simulations, which indicate a significance level of 4.5<span>(sigma )</span>. This study suggests that the detected QPO can be plausibly explained by Newtonian-driven jet precession associated with a supermassive black hole binary system (SMBHB). Utilizing this model, we estimate, mass of the primary black hole to be <span>(7.3 times 10^9 textrm{M}_{odot })</span>, mass of the secondary black hole to be <span>(2.1 times 10^9 textrm{M}_{odot })</span> and <span>(frac{R_{1}}{R_{2}})</span> to be 0.27, resulting in an orbital period of the secondary black hole (<span>(P_{M_2})</span>) of 1.15 years and a precession period of the jet of <span>(sim )</span>42.49 years.</p></div>","PeriodicalId":610,"journal":{"name":"Journal of Astrophysics and Astronomy","volume":"46 2","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037356","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

Berezinskii-Kosterlitz-Thouless Renormalization Group Flow at a Quantum Phase Transition 量子相变中的重整化群流

IF 8.6 1区物理与天体物理

Physical review letters Pub Date : 2025-09-11 DOI: 10.1103/4xdz-5vq7

Matthias Thamm, Harini Radhakrishnan, Hatem Barghathi, C. M. Herdman, Arpan Biswas, Bernd Rosenow, Adrian Del Maestro

引用次数: 0

Nonlocal transfer of high-dimensional unitary operations 高维酉运算的非局部转移

IF 6.4 2区物理与天体物理

Quantum Pub Date : 2025-09-11 DOI: 10.22331/q-2025-09-11-1855

Dilip Paneru, Francesco Di Colandrea, Alessio D'Errico, Ebrahim Karimi

引用次数: 0

Efficacy of galaxy catalogues for following up gravitational wave events 星系目录对追踪引力波事件的功效

IF 1.6 4区物理与天体物理

Journal of Astrophysics and Astronomy Pub Date : 2025-09-11 DOI: 10.1007/s12036-025-10097-1

TAMOJEET ROYCHOWDHURY, HARSH CHOUDHARY, VARUN BHALERAO, DAVID O. COOK, VIRAJ KARAMBELKAR, MANSI M. KASLIWAL, HARSH KUMAR, SURHUD MORE, GAURAV WARATKAR

{"title":"Efficacy of galaxy catalogues for following up gravitational wave events","authors":"TAMOJEET ROYCHOWDHURY, HARSH CHOUDHARY, VARUN BHALERAO, DAVID O. COOK, VIRAJ KARAMBELKAR, MANSI M. KASLIWAL, HARSH KUMAR, SURHUD MORE, GAURAV WARATKAR","doi":"10.1007/s12036-025-10097-1","DOIUrl":"10.1007/s12036-025-10097-1","url":null,"abstract":"<div><p>The detection of gravitational waves (GW) by the LIGO-Virgo-KAGRA (LVK) network has opened up a new era in astrophysics. The identification of the electromagnetic counterparts of GW sources is crucial for multi-messenger astronomy, one way of which is to use galaxy catalogues to guide optical follow-up observations. In this paper, we test the utility of a galaxy-targeted approach with mass prioritised galaxy ranking for the ongoing LIGO O4 run. We have used the simulated results for the expected LIGO O4 events and the NED-LVS galaxy catalogue, and based our study on small field of view telescopes, specifically the GROWTH-India Telescope (GIT). With the increase in sensitivity of LIGO/Virgo in the ongoing observing run O4, the expected number of total detections have gone up, but most of these are also now poorly localised. We show that a larger volume covered in the same field-of-view (FoV) on the sky results in a large increase in the total number of galaxies in each FoV. A significant top-heaviness is observed in the mass-ranked list of galaxies, which still numbers a few thousand in most cases. At larger distances, such high numbers of deep follow-up observations are infeasible in most cases, rendering galaxy catalogues useful in limited cases. However, these are still useful at lower distances where LVK detectors are currently sensitive and where galaxy completeness is higher. We also explore the effect of mass-filling to account for galaxy catalogue incompleteness at large distances. If mass-filled probabilities are considered as the metric for ranking and coverage, we find that the conventional 2D probability search performs better than a 3D galaxy catalogue (without mass-filling) based search at distances larger than 300 Mpc (up to which NED-LVS is <span>({sim } 70)</span>% complete), and using 3D mass times probability in each tile performs better for nearby events.</p></div>","PeriodicalId":610,"journal":{"name":"Journal of Astrophysics and Astronomy","volume":"46 2","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028339","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