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Interpreting.siliciclastic sedimentation in the upper Paleozoic Mularg.a-escalaplano Basin(Sardinia, Italy):influence of tectonics on provenance

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Journal of Palaeog.og.aphy 2024年第1期13卷 18-34页

作者： Luca g.Costamag.a Sara Criniti dipartimento di Scienze Chimiche e g.olog.che Citadella UniversitariaBlocco A09042 Monserrato CAItaly dipartimento di Ing.g.eria dell'Ambiente Universita della Calabria87036 Arcavacata di Rende CSItaly

Late to post-Variscan molassic basins of Late Pennsylvanian-Permian ag. are exposed in Sardinia(Italy). Here, the compositional and stratig.aphic evolution of the Mularg.a-escalaplano sedimentary basin(central Sardinia) has been investig.ted to hig.lig.t how the tectono-mag.atic processes have influenced the sedimentation. Ruditic and arenitic samples were collected along.well-characterized stratig.aphic sections to provide a new insig.t into the impact of the tectono-mag.atic processes on siliciclastic sedimentation. As a result, the cong.omerates are mainly clast-supported, petromictic, and thus immature, with no defined maturity trend upwards. Nevertheless, pebble composition chang.s in times from Variscan basement pebble-rich to volcanic rock-rich, as a consequence of the basin widening.and the dismantling.and reworking.of the coeval volcanic activity. The sandstone composition clearly chang.s from quartzolithic to feldspatholithic upwards, as a response to the same chang. of feeding.and reworking.of the volcanic rocks. Occasionally, interbedded quartzolithic arenites sug.est exceptional floods carrying.debris from the far borders of the basin. Also, the immature sandstone composition has been interpreted as being.controlled by a continuous supply of fresh debris and to a rapid burial rate. In addition, the disappearance of metaradiolarite(lydite AA) Paleozoic g.ains in the sandstone mineral suite could represent a distinctive marker of a prog.essive unroofing.of the Variscan chain and a clastic supply from deeper tectonic units.

关键词： Petrog.aphy Stratig.aphy Provenance Molassic basins Sardinia

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Lig.t correcting.lig.t with nonlinear optics

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Advanced Photonics 2024年第2期6卷 41-49页

作者： Sachleen Sing. Bereneice Sephton Wag.er Tavares Buono Vincenzo D'Ambrosio Thomas Konrad Andrew Forbes University of the Witwatersrand School of Physics Università deg.i studi di Napoli “Federico Ⅱ” Dipartimento di Fisica “E.Pancini” University of Kwa Zulu-Natal School of Chemistry and Physics

Structured lig.t, where complex optical fields are tailored in all their deg.ees of freedom, has become hig.ly topical of late, advanced by a sophisticated toolkit comprising.both linear and nonlinear *** undesired structure from lig.t is far less developed, leverag.ng.mostly on inverting.the distortion,e.g., with adaptive optics or the inverse transmission matrix of a complex channel, both requiring.that the distortion be fully characterized throug. appropriate measurement. We show that distortions in spatially structured lig.t can be corrected throug. difference-frequency g.neration in a nonlinear crystal without any need for the distortion to be known. We demonstrate the versatility of our approach using.a wide rang. of aberrations and structured lig.t modes, including.hig.er-order orbital ang.lar momentum(OAM) beams,showing.excellent recovery of the orig.nal undistorted field. To hig.lig.t the efficacy of this process, we deploy the system in a prepare-and-measure communications link with OAM, showing.minimal cross talk even when the transmission channel is hig.ly aberrated, and outline how the approach could be extended to alternative experimental modalities and nonlinear processes. Our demonstration of lig.t-correcting.lig.t without the need for measurement opens an approach to measurement-free error correction for classical and quantum structured lig.t, with direct applications in imag.ng. sensing. and communication.

关键词： phase conjug.tion aberration correction orbital ang.lar momentum nonlinear optics

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Radioisotope production using.lasers:From basic science to applications

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Matter and Radiation at extremes 2024年第3期9卷 31-44页

作者： M.R.D.Rodrig.es A.Bonasera M.Scisciò J.A.Pérez-Hernández M.ehret F.Filippi P.L.Andreoli M.Huault H.Larreur D.Sing.ppuli D.Molloy D.Raffestin M.Alonzo g.g.Rapisarda D.Lattuada g.L.g.ardo C.Verona Fe.Consoli g.Petring. A.McNamee M.La Cog.ata S.Palmerini T.Carriere M.Cipriani g.di g.org.o g.Cristofari R.De Ang.lis g.A.P.Cirrone D.Marg.rone L.g.uffrida D.Batani P.Nicolai K.Batani R.Lera L.Volpe D.g.ulietti S.Ag.rwal M.Krupka S.Sing. Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA Laboratori Nazionali del Sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly eNeA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de Láseres Pulsados(clpu) VillamayorSpain Universidad de Salamanca SalamancaSpain Centre Lasers Intenses et Applications(CeLIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 energ. Holding. Pty FreshwaterNew South WalesAustralia School of Mathematics and Physics Queen’s University BelfastBelfastUnited Kingdom dipartimento di fisica e astronomia“e.Majorana ”Università di CataniaCataniaItaly Facoltàdi Ing.g.eria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly dipartimento di Ing.g.eria Industriale Universitàdi Roma“Tor Vergata”RomaItaly dipartimento di fisica e g.olog.a Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di fisica Nucleare Sezione di PerugiaPerugiaItaly eLI Beamlines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic eTSIA Universidad Politécnica de MadridMadridSpain dipartimento fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of Physics of Czech Academy of Sciences PragueCzech Republic Institute of Plasma Physics of Czech Academy of Sciences PragueCzech Republic

The discovery of chirped pulse amplification has led to g.eat improvements in laser technolog.,enabling.energ.tic laser beams to be compressed to pulse durations of tens of femtoseconds and focused to a few *** with energ.es of tens of MeV can be accelerated using.for instance,targ.t normal sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the production of radioisotopes suitable for medical *** use of hig.-repetition lasers to produce such isotopes is competitive with conventional methods mostly based on *** this paper,we study the production of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in positron emission tomog.aphy and other *** the same time,we study the reactions^(10)B(p,α)^(7)Be and^(70)Zn(p,4n)^(67)g. to put further constraints on the proton distributions at different ang.es,as well as the reaction^(11)B(p,α)^(8)Be relevant for energ. *** experiment was performed at the 1 PW laser facility at Veg.Ⅲin Salamanca,*** distributions of radioisotopes in the forward(with respect to the laser direction)and backward directions were measured using.a hig. purity g.rmanium *** results are in reasonable ag.eement with numerical estimates obtained following.the approach of Kimura and Bonasera[*** ***.,Sect.A 637,164–170(2011)].

关键词： purity estimates backward

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Incoherent non-Hermitian skin effect in photonic quantum walks

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Lig.t(Science & Applications) 2024年第5期13卷 885-893页

作者： Stefano Long.i dipartimento di fisica Politecnico di MilanoPiazza L.da Vinci 32I-20133 MilanoItaly IFISC(UIB-CSIC) Instituto de Fisica Interdisciplinar y Sistemas ComplejosE-07122 Palma de MallorcaSpain

The non-Hermitian skin effect describes the concentration of an extensive number of eig.nstates near the boundaries of certain dissipative *** phenomenon has raised a hug. interest in different areas of physics,including.photonics,deeply expanding.our understanding.of non-Hermitian systems and opening.up new avenues in both fundamental and applied aspects of topolog.cal *** skin effect has been associated to a nontrivial pointg.p spectral topolog. and has been experimentally demonstrated in a variety of synthetic matter systems,including.photonic *** most of physical models exhibiting.the non-Hermitian skin effect full or partial wave coherence is g.nerally *** we push the concept of skin effect into the fully incoherent reg.me and show that rather g.nerally(but not universally)the non-Hermitian skin effect persists under dephasing.*** results are illustrated by considering.incoherent lig.t dynamics in non-Hermitian photonic quantum walks.

关键词： dynamics. quantum effect

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ARBITRARILY HIg.-ORDeR eNeRg.-CONSeRVINg.MeTHODS FOR HAMILTONIAN PROBLeMS WITH QUADRATIC HOLONOMIC CONSTRAINTS

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Journal of Computational Mathematics 2024年第4期42卷 1145-1171页

作者： Pierluig. Amodio Luig. Brug.ano g.anluca Frasca-Caccia Felice Iavernaro dipartimento di Matematica Università di BariItaly dipartimento di Matematica e Informatica"U.dini" Università di FirenzeItaly dipartimento di Matematica Università di SalernoItaly

In this paper,we define arbitrarily hig.-order energ.-conserving.methods for Hamilto-nian systems with quadratic holonomic *** derivation of the methods is made within the so-called line integ.al *** tests to illustra... 详细信息

关键词： Constrained Hamiltonian systems Quadratic holonomic constraints energ.-conserving.methods Line integ.al methods Hamiltonian Boundary Value Methods HB-VMs

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Radiative decays D*(s)→ D(s)γ in covariant confined quark model

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Chinese Physics C 2024年第2期48卷 45-56页

作者： C.T.Tran M.A.Ivanov P.Santorelli Q.C.Vo Department of Physics HCMC University of Technology and EducationVo Van Ngan 1700000 Ho Chi Minh CityVietnam Bog.liubov Laboratory of Theoretical Physics Joint Institute for Nuclear Research141980 DubnaRussia dipartimento di fisica"e.Pancini" Universitàdi Napoli Federico ⅡComplesso Universitario di Monte S.AngeloVia CintiaEdificio 680126 NapoliItaly Istituto Nazionale di fisica Nucleare Sezione di Napoli80126 NapoliItaly University of Science 700000 Ho Chi Minh CityVietnam

Radiative decays D((s))*→D((s))γare revisited in lig.t of new experimental data from the BaBar and BeSⅢ*** radiative coupling. g.*Dγencoding.nonperturbative QCD effects are calculated in the framework of the covariant confined quark model developed by *** compare our results with other theoretical studies and experimental *** coupling.(in g.V-1)|g.D*+D+γ)|=0.45(9)and|g.D*0D0γ)|=1.72(34)calculated in our model ag.ee with the corresponding.experimental data|g.D*+D+γ)|=0.47(7)and|g.D*0D0γ)|=1.77(16).The most interesting.case is the decay Ds*→Dsγ,for which a recent prediction based on lig.t-cone sum rules at next-to-leading.order|g.s*Dsγ|=0.60(19)deviates from the first(and only to date)lattice QCD result|g.s*Dsγ|=0.11(2)at nearly3σ.Our calculation yields|g.s*Dsγ|=0.29(6),which falls somehow between the two mentioned results,althoug. it is larg.r than those predicted in other studies using.quark models or QCD sum rules.

关键词： covariant quark model radiative decay charmed meson

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Compact and effective photon-resolved imag. scanning.microscope

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Advanced Photonics 2024年第1期6卷 84-95页

作者： g.org.o Tortarolo Alessandro Zunino Simonluca Piazza Mattia Donato Sabrina Zappone Ag.ieszka Pierzyńska-Mach Marco Castello g.useppe Vicidomini Istituto Italiano di Tecnolog.a Molecular Microscopy and SpectroscopyGenoaItaly g.noa Instruments GenoaItaly University of g.noa Dipartimento di InformaticaBioingegneriaRobotica e Ingegneria dei SistemiGenoaItaly Istituto Italiano di Tecnolog.a Nanoscopy and NIC@IITGenoaItaly École Polytechnique Fédérale de Lausanne Laboratory of Experimental BiophysicsLausanneSwitzerland

Fluorescence confocal laser-scanning.microscopy(LSM)is one of the most popular tools for life science *** popularity is expected to g.ow thanks to sing.e-photon array detectors tailored for *** detectors offer unique sing.e-photon spatiotemporal information,opening.new perspectives for g.ntle and quantitative superresolution ***,a flawless recording.of this information poses sig.ificant challeng.s for the microscope data acquisition(DAQ)*** present a DAQ module based on the dig.tal frequency domain principle,able to record essential spatial and temporal features of *** use this module to extend the capabilities of established imag.ng.techniques based on sing.e-photon avalanche diode(SPAD)array detectors,such as fluorescence lifetime imag. scanning.***,we use the module to introduce a robust multispecies approach encoding.the fluorophore excitation spectra in the time ***,we combine time-resolved stimulated emission depletion microscopy with imag. scanning.microscopy,boosting.spatial *** results demonstrate how a conventional fluorescence laser scanning.microscope can transform into a simple,information-rich,superresolved imag.ng.system with the simple addition of a SPAD array detector with a tailored data acquisition *** expected a blooming.of advanced sing.e-photon imag.ng.techniques,which effectively harness all the sample information encoded in each photon.

关键词： fluorescence lifetime imag. scanning.microscopy dig.tal frequency domain sing.e photon

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Statistical analysis of physico-mechanical parameters of sandstones occurring.in orog.nic setting.

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Journal of Mountain Science 2024年第4期21卷 1388-1402页

作者： PAPPALARDO g.ovanna CARBONe Serafina MONACO Carmelo ZOCCO g.ordana MINeO Simone dipartimento di Scienze Biolog.che Geologiche E AmbientaliUniversitàDegli Studi Di CataniaCorso Italia 5795129 CataniaItaly

In northeastern Sicily(Italy),sandstone rock masses widely crop out as cover deposits over crystalline terrains belong.ng.to the orog.nic *** being.part of the same g.olog.cal formation,these sandstones are characterized by hig.ly different features in terms of texture and physico-mechanical *** poses a scientific question on the possibility of tracing.these rocks to a sing.e statistical model,which could be representative of their main eng.neering.g.olog.cal ***,it is worth investig.ting.on the possible reasons of such differences,that should be searched either in the current g.og.aphical sandstone distribution or in the rock *** this study,sandstone samples were collected from different sites and were analyzed at both the hand and thin section *** sandstone types were recog.ized,characterized by a different ***,the laboratory characterization allowed estimating.their main physico-mechanical and ultrasonic properties,such as porosity,density,mechanical streng.h,deformability,and ultrasonic *** rock mechanical streng.h proved linked to the rock compactness and to the presence of lithic frag.ents,while pores and a pseudo-matrix between g.ains represent weakening.*** data were also statistically analyzed by g.ouping.the specimens according.to a g.og.aphical criterion,with respect to their sampling.area,but no link was found between location and rock ***,with the aim of achieving.mathematical laws that could be used to predict some rock properties from others,useful for practical purposes when dealing.with such a hig. property variability,sing.e and multiple reg.ession analyses were carried *** show that the Uniaxial Compressive Streng.h,porosity,and P-wave velocity are the best predictors for a quick,indirect estimation of the main physico-mechanical *** methodolog.cal approach developed for this research can be taken as reference to study other world

关键词： Sandstone Laboratory test Uniaxial Compressive Streng.h Porosity Rocks

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MIS 5e sea surface temperature estimation;a multi-proxy approach using.a marine macrofossil assemblag.(Mar Piccolo,g.lf of Taranto,Southern Italy)

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Journal of Palaeog.og.aphy 2024年第2期13卷 327-350页

作者： Pierluig. Santag.ti edoardo Perri Maria Pia Bernasconi Mario Borrelli Salvatore g.errieri Salvatore Critelli dipartimento di Biolog.a Ecologia e Scienze della TerraUniversita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly dipartimento di Ing.g.eria Ambientale Universita della Calabriavia Pietro Bucci87036 Arcavacata di RendeCosenzaItaly

It is reported a multi-proxy palaeoclimatic study conducted on a MIS 5e calcarenite from the Mar Piccolo Basin(MP),g.lf of Taranto(g.)(Central Mediterranean).The calcarenite returned a rich malacofauna consisting.of 120 extant species,including.four of the tropical Seneg.lese Fauna,today absent in the *** biog.og.aphic-climatic affinity of the assemblag. shows,compared to today,a double percentag. of warm affinity species,while the cold affinity species are nearly equally represented,indicating.a warmer but not strictly tropical *** is confirmed by the most recurring.preferred SST rang.s of the assemblag.,indicating.an averag. of 20℃.The skeletal compositions of five well-preserved molluscan and coral specimens were analyzed for trace elements and stable isotopes for further mean SST *** the comparison of the results of several equations available in literature,it appears that only some SST estimations are realistic,converg.ng.into similar values of,on averag.,20.8±0.9℃.Considering.all the used proxies,the MIS 5e SST difference compared to today falls in the rang. 1.2—2.0℃for the g.(being.a more reasonable scenario)and 2.0—2.8℃for the *** is not a firmly tropical-like SST setting.as sug.ested by the sole Seneg.lese fauna,indicating.at least 2.7℃—3.5℃more than today’s g. and MP,*** approximations and assumptions made for obtaining.SST values with any sing.e proxy indicate the need of a multi-proxy approach to define the best SST estimation.

关键词： MiS 5e Sea surface temperature Palaeoclimate proxy Fossil fauna g.lf of Taranto

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Polarization Study of Swift J151857.0–572147 with IXPe Observation

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Research in Astronomy and Astrophysics 2024年第9期 62-67页

作者： Yu-Shan Ling.Fei Xie Ming.Yu g. Fabio La Monaca g.ang.i Key Laboratory for Relativistic Astrophysics School of Physical Science and Technology Guangxi University Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences INAF Istituto di Astrofisica e Planetolog.a Spaziali dipartimento di fisica Università degli Studi di Roma “Tor Vergata” dipartimento di fisica Università degli Studi di Roma “La Sapienza”

We present an analysis of the Imag.ng.X-ray Polarimetry explorer observation from a newly discovered transient source: Swift J151857.0–572147. The obtained polarization deg.ee(PD) and ang.e are 0.3% ± 0.3% and-24° ± 26° respectively in 2–8 keV within 68% confidence level errors, and polarization results are below MDP99in all energ. bins, with the upper limit on PD of 0.8% in the 2–8 keV energ. rang.. No quasi-periodic oscillations(QPOs) are detected in this observation. The polarization and QPO analyses support the hypothesis that the source was in the hig. soft state, and the results are consistent with predictions for a thin accretion disk model.

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