物理最新文献

{"title":"Tunable extraordinary optical transmission for integrated photonics","authors":"Hira Asif,&nbsp;Ramazan Sahin","doi":"10.1007/s00340-025-08395-1","DOIUrl":"10.1007/s00340-025-08395-1","url":null,"abstract":"<div><p>The propagation of light through opaque materials, served by periodic arrays of subwavelength holes, has revolutionized imaging and sensor technology with a breakthrough of extraordinary optical transmission (EOT). The enhanced optical transmission assisted by surface plasmon resonances (SPR) has become the most ingenious phenomenon in the field of light-matter interaction. Active tuning of SPR presents a new and simple way to control spectral features of the EOT signal (without the need to change the geometrical structure of the device). This provides a new possibility to integrate an active EOT device with tunable operational frequencies on a single chip of photonic integrated circuits (PIC)- a new scalable instrument in the optoelectronic industry, and quantum technology for improving subwavelength optical imaging and biomedical sensing. In this review, we discuss the fundamentals of EOT, the role of SPR, and how the active quantum plasmonic control of the EOT device makes it a feasible on-chip electro-optic programmable element for integrated photonics.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 3","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362070","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}

{"title":"Bubble injection for heat transfer enhancement: From physics to applications","authors":"Ahmad Zarei ,&nbsp;Liya Hooshyari ,&nbsp;Sohrab Zaboli ,&nbsp;Marzie Babaie Rabiee ,&nbsp;Saeed Akhavan ,&nbsp;Sadegh Seddighi ,&nbsp;Mehrdad Mesgarpour ,&nbsp;Somchai Wongwises ,&nbsp;Michael Schlüter ,&nbsp;Goodarz Ahmadi ,&nbsp;Christos N. Markides ,&nbsp;Yonghai Zhang ,&nbsp;Jianzhong Lin ,&nbsp;Omid Mahian","doi":"10.1016/j.physrep.2024.09.008","DOIUrl":"10.1016/j.physrep.2024.09.008","url":null,"abstract":"<div><div>This article presents a comprehensive review of recent advancements in bubble-induced heat transfer enhancement, with a primary focus on understanding the fundamental underlying physics. Accordingly, this review first highlights recent novel concepts and techniques developed to enhance heat transfer through bubble injection, followed by explaining the essential physical aspects of this development. It attempts to clarify the impact of bubble injection on heat transfer by examining key mechanisms in two-phase bubbly flow. The factors that influence heat transfer and fluid flow, including mechanisms of bubble ascent, bubble breakage, and coalescence, as well as the impact of bubble size and shape, are examined. Furthermore, the review explores the use of bubble injection in different types of heat exchangers in addition to other applications, including solar collectors, hydrogen production, internal combustion engines, and energy storage systems. Furthermore, the article identifies current research gaps and existing challenges and suggests potential directions for future research in bubble-induced heat transfer enhancement.</div></div>","PeriodicalId":404,"journal":{"name":"Physics Reports","volume":"1112 ","pages":"Pages 1-117"},"PeriodicalIF":23.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143348270","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}

{"title":"Effects of surface ultraviolet/ozone treatment on the electrical characteristics of Pt/Ga2O3/SiC Schottky diodes","authors":"Se-Rim Park,&nbsp;Tae-Hee Lee,&nbsp;Ji-Soo Choi,&nbsp;Hyun-Woo Lee,&nbsp;Seung-Hwan Chung,&nbsp;Min-Yeong Kim,&nbsp;Geon-Hee Lee,&nbsp;Michael A. Schweitz,&nbsp;Sang-Mo Koo","doi":"10.1007/s00339-024-08198-9","DOIUrl":"10.1007/s00339-024-08198-9","url":null,"abstract":"<div><p>This study investigates the effects of ultraviolet/ozone (UV/O₃) treatment on the electrical and morphological characteristics of Pt/Ga₂O₃ diodes. Surface treatment is crucial in gallium oxide (Ga₂O₃)-based devices due to its ability to reduce surface defects and improve interface quality, significantly enhancing device performance. Electrical characterization was performed using capacitance–voltage (C–V), current–voltage (I–V), breakdown voltage (BV), and temperature-dependent current–voltage (I–V–T) measurements. Surface analysis was performed via X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). The UV/O₃-treated diodes exhibited improved performance, with the on/off ratio increasing from 5.60 × 10³ to 2.49 × 10⁴ and reduced reverse leakage current. Additionally, the treatment reduced Schottky barrier inhomogeneity, indicating a more uniform metal/semiconductor interface. These improvements are attributed to the reduction of oxygen vacancy defects and enhanced surface morphology, as confirmed by XPS and AFM. The results suggest that UV/O₃ treatment effectively enhances the performance of Ga₂O₃-based diodes by controlling interface properties.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic and magnetocaloric properties of melt-spun ribbons of GdTbDyHoEr high entropy alloy","authors":"A. V. Svalov,&nbsp;D. S. Neznakhin,&nbsp;A. V. Arkhipov,&nbsp;S. V. Andreev,&nbsp;A. S. Rusalina,&nbsp;A. V. Tebenkov,&nbsp;A. I. Medvedev,&nbsp;I. V. Beketov,&nbsp;G. V. Kurlyandskaya","doi":"10.1007/s00339-025-08316-1","DOIUrl":"10.1007/s00339-025-08316-1","url":null,"abstract":"<div><p>Melt-spun ribbons of GdTbDyHoEr high-entropy alloy have a single-phase hexagonal-close-packed structure. The maximum value of the magnetic entropy change Δ<i>S</i>_<i>M</i> for this alloy after rapid quenching increases up to 8.6 J kg^− 1 K^− 1 in the external magnetic field of 5 T at <i>T</i> = 180 K, and the refrigerant capacity <i>RC</i> reaches 340 J kg^− 1 in the external magnetic field of 2 T. The present analysis indicates that the higher values of the magnetic entropy change and the refrigerant capacity for the GdTbDyHoEr melt-spun ribbons are apparently due to their lower effective magnetic anisotropy in comparison with the bulk alloy and more intense response to an external magnetic field. The presented results indicate a way to obtain highly efficient materials for magnetic refrigeration applications.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preserving the rheological equation of Eyring-Powell fluid through non-similar approach: a numerical analysis by BSCM","authors":"Mojeed T. Akolade,&nbsp;Amos S. Idowu,&nbsp;Timothy L. Oyekunle,&nbsp;Samson A. Agunbiade,&nbsp;Hafizat O. Momoh,&nbsp;Moses S. Dada,&nbsp;Emmanuel O. Titiloye,&nbsp;Jos U. Abubakar,&nbsp;Olanrewaju T. Olotu","doi":"10.1140/epjp/s13360-024-05941-2","DOIUrl":"10.1140/epjp/s13360-024-05941-2","url":null,"abstract":"<div><p>To preserve the rheological equation of the non-Newtonian Eyring-Powell (EP) fluid, present mixed convection problem is simplified via non-similar approach, as opposed to the widely used similarity technique, while the dynamics are numerically investigated through bivariate spectral collocation method (BSCM). Studies identify that variations in free stream velocity, surface mass transfer, wall temperature, buoyancy forces, magnetization, chemical reactions, etc are factors responsible for the non-similar boundary layer problem (N-SBLP). However, the assumptions in this study including dissipative heat, a Darcian medium, non-Newtonian fluid, nonlinear buoyancy, convective heat transfer, chemical reaction rates, and Soret–Dufour effects give rise to the N-SBLP, thus necessitating the use of the non-similar technique. The numerical method adopts a modified spectral Chebyshev-based collocation method (a bi-discretization scheme) known as the BSCM, capable of handling systems of partial differential equations (PDEs). The governing mathematical model of the flow, heat, and mass transfer is presented in the form of PDEs, transformed into dimensionless N-SBLP equations, and solved numerically. The results of the physical quantities confirm the preservation of the rheological properties of the EP fluid, as demonstrated in the corresponding figures and tables. The findings highlight the successful application of the non-similar approach and BSCM to the N-SBLP of EP fluid. A rise in the Dufour number indicates a stronger influence of mass diffusion on thermal energy transfer, while increasing the Eyring-Powell fluid’s dimensionless parameters and quadratic buoyancy enhances fluid motion, improves mass transfer, reduces temperature profiles, and thins boundary layers due to stronger non-Newtonian and convective effects.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"140 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361875","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}

{"title":"Inclusive photoproduction of vector quarkonium in ultra-peripheral collisions at the LHC","authors":"Jean-Philippe Lansberg,&nbsp;Kate Lynch,&nbsp;Charlotte Van Hulse,&nbsp;Ronan McNulty","doi":"10.1140/epjc/s10052-024-13693-7","DOIUrl":"10.1140/epjc/s10052-024-13693-7","url":null,"abstract":"<div><p>We explore the possibility of using ultra-periphe- ral proton-lead collisions at the LHC to study inclusive vector-quarkonium photoproduction, that occurs when a quasi-real photon emitted by a fully stripped lead ion breaks a proton to produce a vector quarkonium. Owing to the extremely large energies of the colliding hadrons circulating in the LHC, the range of accessible photon-nucleon centre-of-mass energies, <span>(W_{gamma p})</span>, largely exceeds what has been and will be studied at lepton-hadron colliders, HERA and the EIC. We perform a tune to HERA photoproduction data, use this tune to predict the yields of photoproduced <span>(J/psi )</span>, and estimate the corresponding transverse-momentum reach at LHC experiments. We also model the hadroproduction background and demonstrate that inclusive photoproduction can be isolated at the LHC from such background by imposing constraints on the hadronic activity in the lead-going direction at mid, forward, or far-forward rapidities depending on the capability of the detector under consideration. We find that the resulting cross sections are large enough to be measured by ALICE, ATLAS, CMS, and LHCb. We estimate the background-to-signal ratio after isolation to be of the order of 0.001 and 0.1 in the low and large transverse-momentum regions, respectively. In addition, we propose and assess the Jacquet–Blondel method to reconstruct the photon-nucleon centre-of-mass energy and the fractional energy of the quarkonium with respect to the photon.</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-024-13693-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"Simulating toponium formation signals at the LHC","authors":"Benjamin Fuks,&nbsp;Kaoru Hagiwara,&nbsp;Kai Ma,&nbsp;Ya-Juan Zheng","doi":"10.1140/epjc/s10052-025-13853-3","DOIUrl":"10.1140/epjc/s10052-025-13853-3","url":null,"abstract":"<div><p>We present a method to simulate toponium formation events at the LHC using the Green’s function of non-relativistic QCD in the Coulomb gauge, which governs the momentum distribution of top quarks in the presence of the QCD potential. This Green’s function can be employed to re-weight any matrix elements relevant for <span>(t{bar{t}})</span> production and decay processes where a colour-singlet top–antitop pair is produced in the <i>S</i>-wave at threshold. As an example, we study the formation of <span>(eta _t)</span> toponium states in the gluon fusion channel at the LHC, combining the re-weighted matrix elements with parton showering.</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-13853-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"NNLO PDFs driven by top-quark data","authors":"S. Alekhin,&nbsp;M. V. Garzelli,&nbsp;S.-O. Moch,&nbsp;O. Zenaiev","doi":"10.1140/epjc/s10052-025-13832-8","DOIUrl":"10.1140/epjc/s10052-025-13832-8","url":null,"abstract":"<div><p>We study the impact of state-of-the-art top-quark data collected at the large hadron collider on parton distribution functions (PDFs). Following the ABMP methodology, the fit extracts simultaneously proton PDFs, the strong coupling <span>(alpha _s(M_Z))</span> and heavy-quark masses at next-to-next-to-leading order (NNLO) accuracy in QCD. It includes recent high-statistics data on absolute total inclusive cross sections for   <span>(tbar{t}+X)</span>, the sum of <span>((t + X))</span> and <span>((bar{t} + X))</span> hadroproduction, and normalized inclusive data double-differential in the invariant mass and rapidity of the <span>(tbar{t})</span> pair at <span>(sqrt{S}=13)</span> TeV. The gluon PDF at large <i>x</i> and the top-quark mass value derived from these data are well compatible with the previous ABMP16 results, but with significantly smaller uncertainties, reduced by up to a factor of two. At NNLO in QCD we obtain for the strong coupling the value <span>(alpha _s^{(n_f=5)}(M_Z)= 0.1150 pm 0.0009)</span> and for the top-quark mass in the <span>({overline{text{ MS }}})</span>-scheme <span>(m_t(m_t) = 160.6 pm 0.6)</span> GeV, corresponding to <span>(m_t^textrm{pole} = 170.2 pm 0.7)</span> GeV in the on-shell scheme. The new fit, dubbed ABMPtt, is publicly released in grids in LHAPDF format.</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 2","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-13832-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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":"On the equivalence of Prony and Lanczos methods for Euclidean correlation functions","authors":"J. Ostmeyer,&nbsp;A. Sen,&nbsp;C. Urbach","doi":"10.1140/epja/s10050-025-01495-8","DOIUrl":"10.1140/epja/s10050-025-01495-8","url":null,"abstract":"<div><p>We investigate the oblique Lanczos method recently put forward in Ref. [1] for analysing Euclidean correlators in lattice field theories and show that it is analytically equivalent to the well known Prony Generalised Eigenvalue Method (PGEVM). Moreover, we discuss that the signal-to-noise problem is not alleviated by either of these two methods. Still, both methods show clear advantages when compared to the standard effective mass approach.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-025-01495-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361927","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}

{"title":"Isovector properties of effective finite-range nuclear interactions","authors":"D. Davesne,&nbsp;J. Navarro,&nbsp;A. Pastore,&nbsp;Y. Lallouet","doi":"10.1140/epja/s10050-025-01491-y","DOIUrl":"10.1140/epja/s10050-025-01491-y","url":null,"abstract":"<div><p>We discuss several properties of two families of finite-range interactions in infinite nuclear matter, aiming in particular to their isovector properties. We find that the recent parameterisations of both Gogny and Nakada provide a reasonable description of the properties of the infinite medium as well as an equation of state capable of sustaining a two solar mass neutron star. We also discuss the pairing properties in the spin-singlet channel for both families of interactions.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epja/s10050-025-01491-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143361710","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}