The European Physical Journal Plus最新文献_第10页

Parallel surface squeeze film bearing using ferrofluid lubricant controlled by transverse magnetic fields 利用横向磁场控制铁流体润滑剂的平行表面挤压膜轴承

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05812-w

Rajesh C. Shah

引用次数: 0

Emissivity measurements on noble metals: validation of a free-electron description including the anomalous skin effect 惰性金属的发射率测量：包括反常趋肤效应的自由电子描述的验证

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05819-3

Iñigo González de Arrieta, Telmo Echániz, Albert Adibekyan, Christian Monte, Jörg Hollandt, Gabriel A. López

引用次数: 0

Unraveling the influence of some foreign elements on microhardness and thermomechanical characteristics of SeTeSn alloy 揭示某些外来元素对 SeTeSn 合金显微硬度和热机械特性的影响

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05857-x

Vishnu Saraswat, Neeraj Mehta

{"title":"Unraveling the influence of some foreign elements on microhardness and thermomechanical characteristics of SeTeSn alloy","authors":"Vishnu Saraswat, Neeraj Mehta","doi":"10.1140/epjp/s13360-024-05857-x","DOIUrl":"10.1140/epjp/s13360-024-05857-x","url":null,"abstract":"<div><p>This study investigates the influence of various metallic additives (Ag, Bi, Cd, and Zn) on the Vickers microhardness and thermo-mechanical properties of parent Se₇₈Te₂₀Sn₂ chalcogenide glass. The glassy alloys were synthesized using the melt-quench method, and their microhardness was measured through precise Vickers micro-indentation testing, under varying loads (100 gm, 200 gm, and 300 gm). Optical microscopy enabled detailed measurements of the indentation marks. The differential scanning calorimetry assessed glass transition temperatures, confirming the glassy structure. Additionally, empirical calculations were employed to determine the modulus of elasticity (<i>E</i>), micro-void volume (<i>V</i><sub><i>h</i></sub>), and the energy required for micro-void formation (<i>E</i><sub><i>h</i></sub>). Findings reveal decreased microhardness in quaternary alloys, with Ag and Cd showing the most significant impact. Conversely, Zn exhibited minimal reduction, suggesting that its inclusion affects the glassy matrix differently. The density and molar volume of the samples show an inverse relationship with their compactness. This work offers insights into optimizing the hardness and structural properties of chalcogenide glasses through controlled elemental modification.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736872","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

Hybrid plasmonic modes in multilayer result in enantiomer pair discrimination

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05816-6

G. Simone

{"title":"Hybrid plasmonic modes in multilayer result in enantiomer pair discrimination","authors":"G. Simone","doi":"10.1140/epjp/s13360-024-05816-6","DOIUrl":"10.1140/epjp/s13360-024-05816-6","url":null,"abstract":"<div><p>In this study, an experimental investigation of a multilayer/antenna system is conducted. The system features the hybridization of waveguide and surface plasmon polariton mode. Experimental and numerical results were examined to characterize the behavior of the plasmonic design. The multilayer structure is composed of silver (Ag), platinum, silica (SiO<sub>2</sub>), and silicon; however, when the silicon surface is etched, micrometric features are generated, which have been observed to behave as plasmonic antennae and to aid in the formation of the waveguide mode. The configuration allows for the efficient guiding of electromagnetic waves through the structure, while the micrometric roughness enables the transmission associated with localized surface plasmon resonance. When a red dye is deposited onto a multilayer surface, it triggers a strong interaction between excitons and polaritons. This interaction leads to a notable increase in radiation force, which refers to the force exerted by electromagnetic radiation. Furthermore, the enhancement of radiation force induced by the dye supports the application of passive chirality spectroscopy as a means to measure the optical forces acting on enantiomers. In conclusion, when a Kretschmann scheme is combined with the de-polarization, a built-in asymmetry results in a different optical flux of spectrum photons. All this leads to distinct, enantioselective, and solely polarization-dependent spectral contrast, which enables the demonstration of the enantioselectivity for the <span>d</span>,<span>l</span>-penicillamine.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142753952","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

Dispersion-managed elliptical atomtronics for interferometry

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05833-5

Sriganapathy Raghav, Suranjana Ghosh, Jayanta Bera, Utpal Roy

{"title":"Dispersion-managed elliptical atomtronics for interferometry","authors":"Sriganapathy Raghav, Suranjana Ghosh, Jayanta Bera, Utpal Roy","doi":"10.1140/epjp/s13360-024-05833-5","DOIUrl":"10.1140/epjp/s13360-024-05833-5","url":null,"abstract":"<div><p>Circular atomtronics is known to exhibit a uniform ground state, unlike elliptical atomtronics. In elliptical atomtronics, the matter wave tends to accumulate along the semimajor edges during its time dynamics, which we depict by the survival function. Consequently, the dynamical time scales become coupled to the eccentricity, making the dynamics nontrivial for applications. We report that an appropriate dispersion management can decouple the time scales from the eccentricity. One can choose the suitable dispersion coefficient from the overlap function involving the corresponding ground state. We focus on producing distinct fractional matter waves inside an elliptical waveguide to achieve efficient atom interferometry. The said dispersion engineering can recover fractional revivals in the elliptical waveguide, analogous to the circular case. We demonstrate atom interferometry for the engineered elliptical atomtronics, where matter wave interference is mediated by an external harmonic trap for controlled interference patterns.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142753995","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

Multiple scattering of positively charged particles moving near the (111) plane in a silicon single crystal 硅单晶中靠近 (111) 平面移动的带正电粒子的多重散射

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05851-3

W. Scandale, F. Cerutti, L. S. Esposito, M. Garattini, S. Gilardoni, R. Losito, A. Masi, D. Mirarchi, S. Redaelli, G. Smirnov, L. Bandiera, V. Guidi, A. Mazzolari, F. M. Addesa, F. Iacoangeli, F. Galluccio, A. G. Afonin, Yu. A. Chesnokov, A. A. Durum, V. A. Maisheev, Yu. E. Sandomirskiy, A. A. Yanovich, A. M. Taratin, Yu. A. Gavrikov, P. Yu. Ivanova, Yu. M. Ivanov, G. Hall, M. Pesaresi, R. Rossi

{"title":"Multiple scattering of positively charged particles moving near the (111) plane in a silicon single crystal","authors":"W. Scandale, F. Cerutti, L. S. Esposito, M. Garattini, S. Gilardoni, R. Losito, A. Masi, D. Mirarchi, S. Redaelli, G. Smirnov, L. Bandiera, V. Guidi, A. Mazzolari, F. M. Addesa, F. Iacoangeli, F. Galluccio, A. G. Afonin, Yu. A. Chesnokov, A. A. Durum, V. A. Maisheev, Yu. E. Sandomirskiy, A. A. Yanovich, A. M. Taratin, Yu. A. Gavrikov, P. Yu. Ivanova, Yu. M. Ivanov, G. Hall, M. Pesaresi, R. Rossi","doi":"10.1140/epjp/s13360-024-05851-3","DOIUrl":"10.1140/epjp/s13360-024-05851-3","url":null,"abstract":"<div><p>The article is devoted to the study of the suppression of multiple scattering of positively charged particles with momenta of 180 GeV/c and 400 GeV/c passing through bent single crystals of silicon at small angles to the plane (111) both in channeling mode and in the above-barrier state. For the first time, the suppression of the effect of multiple scattering of non-channeling particles passing at a small angle to one of the planes of a silicon single crystal was observed. In addition, the asymmetry was observed in the multiple scattering of over-barrier particles with respect to their zero angle of entry into the single crystal.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737241","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

The role of position-momentum correlations in coherence freezing and purity behavior of macromolecular gaussian states 位置-动量相关性在大分子高斯态的相干冻结和纯度行为中的作用

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05858-w

Pedro P. da Silva, Carlos H. S. Vieira, Lucas S. Marinho, Marcos Sampaio, Irismar G. da Paz

{"title":"The role of position-momentum correlations in coherence freezing and purity behavior of macromolecular gaussian states","authors":"Pedro P. da Silva, Carlos H. S. Vieira, Lucas S. Marinho, Marcos Sampaio, Irismar G. da Paz","doi":"10.1140/epjp/s13360-024-05858-w","DOIUrl":"10.1140/epjp/s13360-024-05858-w","url":null,"abstract":"<div><p>We explore the effects of Markovian bath coupling and initial position-momentum correlations on the coherence and purity of Gaussian quantum states of macromolecules. Our analysis focuses on the roles these factors play in the dynamics of quantum coherence, coherence lengths, and state purity. Our results reveal that initial position-momentum correlations have a remarkable impact on the quantum properties of the mixed state. These correlations lead to opposing behaviors in coherence and purity: as quantum coherence increases in response to stronger correlations, purity diminishes, and vice versa. This inverse relationship illustrates the phenomenon where, governed by these initial correlations, a state with greater mixing can display enhanced quantum coherence compared to a less mixed state. We also observe an unanticipated coherence freezing phenomenon for fullerene matter waves, quantified by the relative entropy of coherence. Notably, the freezing is driven by initial position-momentum correlations, but the final frozen value remains independent of these correlations. Experimental verification of this phenomenon in macromolecules could elucidate fundamental questions and enable new applications.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737242","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

Everything is entangled in quantum mechanics: on the measures of quantum entanglement 量子力学中的万物纠缠：关于量子纠缠的衡量标准

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05824-6

Christian de Ronde, Raimundo Fernández Mouján, César Massri

{"title":"Everything is entangled in quantum mechanics: on the measures of quantum entanglement","authors":"Christian de Ronde, Raimundo Fernández Mouján, César Massri","doi":"10.1140/epjp/s13360-024-05824-6","DOIUrl":"10.1140/epjp/s13360-024-05824-6","url":null,"abstract":"<div><p>Even though quantum entanglement is today’s most essential concept within the new technological era of quantum information processing, we do not only lack a consistent definition of this kernel notion, we are also far from understanding its physical meaning [1]. These failures have led to many problems when attempting to provide a consistent measure or quantification of entanglement. In fact, the two main lines of contemporary research within the orthodox literature have created mazes where inconsistencies and problems are found everywhere. While the operational-instrumentalist approach has failed to explain how inequalities are able to distinguish the classical from the quantum, the geometrical approach has failed to provide a consistent meaningful account of their entropic measure. Taking distance from orthodoxy, in this work, we address the quantification and measure of quantum entanglement by considering a recently presented objective-invariant definition in terms of the coding of intensive relations [2] which allows to escape the widespread relativist account of bases and factorizations [3, 4]. Going beyond the orthodox dualistic reference to “quantum particles” and “clicks” in detectors, we will argue that this new line of research is capable not only to evade the many open problems which appear within the mainstream literature, but is also able to present a consistent and coherent physical understanding of entanglement. The main conclusion of this work is that in quantum mechanics—contrary to what is generally presupposed—all operational expressions found within the laboratory are intrinsically entangled.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736888","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

Impact of adding bismuth oxide nanoparticles functionalized with graphene oxide nanosheet on the polyvinyl chloride shielding properties

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-29 DOI: 10.1140/epjp/s13360-024-05804-w

Elsayeda F. Salem, Waleed F. Khalil, Rasha S. Zaky, Fatma A. Kamel

{"title":"Impact of adding bismuth oxide nanoparticles functionalized with graphene oxide nanosheet on the polyvinyl chloride shielding properties","authors":"Elsayeda F. Salem, Waleed F. Khalil, Rasha S. Zaky, Fatma A. Kamel","doi":"10.1140/epjp/s13360-024-05804-w","DOIUrl":"10.1140/epjp/s13360-024-05804-w","url":null,"abstract":"<div><p>This study investigates the enhancement of polyvinyl chloride (PVC) by incorporating Bi<sub>2</sub>O<sub>3</sub>-GO nanocomposites. We produced nanocomposites with varying concentrations (1, 2.5, 5, and 10 wt%). The prepared samples were characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). X-ray diffraction (XRD) and thermogravimetric analysis (TGA) were also used. As well as the shielding effectiveness against ultraviolet rays and gamma radiation from <sup>137</sup>Cs and ⁶⁰Co sources at energies of 662, 1173, and 1275 keV. Results indicate that the addition of Bi<sub>2</sub>O<sub>3</sub>-GO significantly improves the thermal stability of PVC, as evidenced by higher decomposition temperatures from TGA. The absorption coefficient increases, while energy gap values decrease with increased nanofiller weight concentrations. The linear attenuation coefficient (LAC) also rises with increasing nanofiller content and decreases with higher gamma-ray energies. Results were consistent with Phy-X software simulations. The sample with 10% wt of Bi<sub>2</sub>O<sub>3</sub>-GO composite demonstrated a highly fast neutron removal cross section (FNRC) and reduced mean free path (MFP). This indicates strong potential for use as a safe, environmentally friendly alternative to lead-based shielding materials. These PVC/Bi<sub>2</sub>O<sub>3</sub>-GO nanocomposites could be effectively utilized in radiation barriers and protective screens in settings involving neutron and low-energy gamma radiation, such as in radiography and radioactive material management.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjp/s13360-024-05804-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142753958","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

A comprehensive characterization of the neutron fields produced by the Apollon petawatt laser 阿波罗 petawatt 激光器产生的中子场的综合特征描述

IF 2.8 3区物理与天体物理

The European Physical Journal Plus Pub Date : 2024-11-28 DOI: 10.1140/epjp/s13360-024-05679-x

R. Lelièvre, W. Yao, T. Waltenspiel, I. Cohen, V. Anthonippillai, P. Antici, A. Beck, E. Cohen, D. Michaeli, I. Pomerantz, D. C. Gautier, F. Trompier, Q. Ducasse, P. Koseoglou, P. -A. Soderstrom, F. Mathieu, A. Allaoua, Julien Fuchs

{"title":"A comprehensive characterization of the neutron fields produced by the Apollon petawatt laser","authors":"R. Lelièvre, W. Yao, T. Waltenspiel, I. Cohen, V. Anthonippillai, P. Antici, A. Beck, E. Cohen, D. Michaeli, I. Pomerantz, D. C. Gautier, F. Trompier, Q. Ducasse, P. Koseoglou, P. -A. Soderstrom, F. Mathieu, A. Allaoua, Julien Fuchs","doi":"10.1140/epjp/s13360-024-05679-x","DOIUrl":"10.1140/epjp/s13360-024-05679-x","url":null,"abstract":"<div><p>Since two decades, laser-driven neutron emissions are studied as they represent a complementary source to conventional neutron sources, with further more different characteristics (i.e. shorter bunch duration and higher number of neutrons per bunch). We report here a global, thorough characterization of the neutron fields produced at the Apollon laser facility using the secondary laser beam (F2). A double plasma mirror (DPM) was used to improve the temporal contrast of the laser which delivers pulses of 24 fs duration, a mean on-target energy of <span>(sim )</span>10 J and up to 1 shot/min. The interaction of the laser with thin targets (few tens or hundreds of nm) in ultrahigh conditions produced enhanced proton beams (up to 35 MeV), which were then used to generate neutrons via the pitcher-catcher technique. The characterization of these neutron emissions is presented, with results obtained from both simulations and measurements using several diagnostics (activation samples, bubble detectors and Time-of-Flight detectors), leading to a neutron yield of <span>(sim 4times 10^{7},{text{ neutrons/shot}})</span>. Similar neutron emissions were observed during shots with and without DPM, while fewer X-rays are produced when the DPM is used, making this tool interesting to adjust the neutrons/X-rays ratio for some applications like combined neutron/X-ray radiography.</p></div>","PeriodicalId":792,"journal":{"name":"The European Physical Journal Plus","volume":"139 11","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737235","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