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Design and optimization of polymer-doped perfect annular photonic crystal for gamma radiation sensing application

Radiation physics and Chemistry 2025年 237卷

作者： Hussein A. Elsayed Suryakanta Nayak Ayman A. Ameen Haifa E. Alfassam Ali Hajjiah Mostafa R. Abukhadra Stefano Bellucci Ahmed Mehaney Department of Physics College of Science University of Ha'il P.O. Box 2440 Ha'il Saudi Arabia Department of Computer Science and Engineering Biju Patnaik University Technology Odisha India Physics Department Faculty of Science Sohag University Egypt Department of Biology College of Science Princess Nourah bint Abdulrahman University P.O. BOX 84428 Riyadh 11671 Saudi Arabia Department of Electrical Engineering College of Engineering and Petroleum Kuwait University Kuwait City Kuwait Materials Technologies and their Applications Lab Faculty of Science Beni-Suef University Beni Suef City Egypt Applied Science Research Center Applied Science Private University Amman Jordan INFN-Laboratori Nazionali di Frascati Vie. E. Fermi 54 00044 Frascati Italy Physics Department Faculty of Science Beni-Suef University Beni-Suef 62512 Egypt

This study presents a novel design for a polymer-doped annular photonic crystal (APC) tailored for high-sensitivity gamma-ray detection. The structure comprises 40 repeated bilayer unit cells arranged alternately. The first layer consists of porous silicon impregnated with polyvinyl alcohol (PVA) and doped with crystal violet (CV) and carbol fuchsine (CF) dyes, while the second layer contains PVA similarly doped with CV and CF. To evaluate the reflectance spectrum, a modified transfer matrix method was employed, emphasizing the distinctive optical behavior of photonic bandgaps (PBG) for accurate radiation measurement. By optimizing the APC's geometrical parameters and incorporating polymer doping, we achieved enhanced tunability of the PBG in the reflectance spectrum. Exposure to varying doses of gamma radiation induced noticeable shifts in the PBG's left and right edge wavelengths, as well as alterations in its width and central position. Numerical simulations revealed a peak sensitivity of 232.59 nm/RIU for gamma-ray doses ranging from 0 Gy to 70 Gy. This innovative APC design offers a robust and efficient approach to real-time gamma-ray dosimetry, with promising potential in medical radiation monitoring, nuclear safety, and environmental protection.

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Investigating the dirac operator evaluation with FPGAs

Supercomputing Frontiers and Innovations

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Supercomputing Frontiers and Innovations 2019年第2期6卷 56-63页

作者： Korcyl, Grzegorz Korcyl, Piotr Department of Information Technologies Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University Kraków Poland Institut für Theoretische Physik Universität Regensburg Regensburg Germany M. Smoluchowski Institute of Physics Jagiellonian University Kraków Poland

In recent years, computational capacity of single Field Programmable Gate Array (FPGA) devices as well as their versatility have increased significantly. Adding to that fact, the High Level Synthesis frameworks allowing to program such processors in a high-level language like C++, makes modern FPGA devices a serious candidate as building blocks of a general-purpose High Performance Computing solution. In this contribution we describe benchmarks which we performed using a kernel from the Lattice QCD code, a highly compute-demanding HPC academic code for elementary particle simulations on the newest device from Xilinx, the U250 accelerator card. We describe the architecture of our solution and benchmark its performance on a single FPGA device running in two modes: using either external or embedded memory. We discuss both approaches in detail and provide assessment for the necessary memory throughput and the minimal amount of resources needed to deliver optimal performance depending on the available hardware. Our considerations can be used as guidelines for estimating the performance of some larger, manynode systems. © The Authors 2019.

关键词： High level synthesis

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Terahertz Inverse Spin Hall Effect in Spintronic Nanostructures

SSRN

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SSRN 2023年

作者： Cheng, Jing Komissarov, Ivan Chen, Genyu Adam, Roman Chaktraborty, Debamitra Bürgler, Daniel E. Heidtfeld, Sarah Cao, Derang Büscher, Markus Hardtdegen, Hilde Mikulics, Martin Schneider, Claus Michael Gladczuk, Leszek Przyslupski, Piotr Sobolewski, Roman Materials Science Program University of Rochester RochesterNY14627-1299 United States Laboratory for Laser Energetics University of Rochester RochesterNY14623 United States Department of Electrical and Computer Engineering University of Rochester RochesterNY14627-0231 United States Research Centre Jülich Peter Grünberg Institute Jülich52425 Germany Faculty of Physics University Duisburg-Essen Duisburg47048 Germany College of Physics Center for Marine Observation and Communications National Demonstration Center for Experimental Applied Physics Education Qingdao University Qingdao266071 China Research Centre Jülich Ernst Ruska Centre for Microscopy and Spectroscopy With Electrons Jülich52425 Germany Department of Physics University of California Davis DavisCA95616-5270 United States Institute of Physics Polish Academy of Sciences WarszawaPL-02668 Poland Department of Physics and Astronomy University of Rochester RochesterNY14627-0171 United States

Bilayers of ferromagnetic and heavy metal nanolayers excited with femtosecond laser pulses emit subpicosecond bursts of electromagnetic radiation with spectral frequencies up to several THz. We fabricated such spintronic THz emitters containing various ferromagnetic materials with vastly different magnetic remanence, saturation magnetization, and coercive field. In all cases, the THz amplitude versus magnetic field dependence follows the independently measured magnetization hysteresis loops and the THz polarization direction is perpendicular to the sample’s magnetization M, both consistent with the inverse spin Hall effect as physical origin. The M(T) variation governs the temperature dependence of the THz generation. Emitters with weakly remanent ferromagnets are field-tunable, while moderately and strongly remanent ferromagnets, once magnetized, allow intense THz generation even without an external field, nevertheless exhibiting low susceptibility to magnetic perturbations, if the hysteresis loop is square. Hence, exploiting the magnetic properties of the ferromagnetic layer enables tailoring of weakly temperature-dependent spintronic THz emitters. Finally, we explored the applicability of perovskite oxide materials such as La-Sr-Mn-O (LSMO) for THz transient generation. Although we detected THz emissions from, e.g., LSMO/Au nanobilayers, the signal was attributed to the ultrafast transient demagnetization and not the inverse spin Hall effect. © 2023, The Authors. All rights reserved.

关键词： Nanostructures

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Versatile Method of Engineering the Band Alignment and the Electron Wavefunction Hybridization of Hybrid Quantum Devices

arXiv

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arXiv 2023年

作者： Li, Guoan Shi, Xiaofan Lin, Ting Yang, Guang Rossi, Marco Badawy, Ghada Zhang, Zhiyuan Shi, Jiayu Qian, Degui Lu, Fang Gu, Lin Wang, An-Qi Tong, Bingbing Li, Peiling Lyu, Zhaozheng Liu, Guangtong Qu, Fanming Dou, Ziwei Pan, Dong Zhao, Jianhua Zhang, Qinghua Bakkers, Erik P.A.M. Nowak, Michal P. Wójcik, Pawel Lu, Li Shen, Jie Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing100190 China AGH University of Krakow Academic Centre for Materials and Nanotechnology al. A. Mickiewicza 30 Krakow30-059 Poland AGH University of Krakow Faculty of Physics and Applied Computer Science al. A. Mickiewicza 30 Krakow30-059 Poland Department of Applied Physics Eindhoven University of Technology Eindhoven5600 MB Netherlands State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences P. O. Box 912 Beijing100083 China Beijing National Center for Electron Microscopy Laboratory of Advanced Materials Department of Materials Science and Engineering Tsinghua University Beijing100084 China School of Physical Sciences University of Chinese Academy of Sciences Beijing100049 China Songshan Lake Materials Laboratory Dongguan523808 China Beijing Academy of Quantum Information Sciences Beijing100193 China Center of Materials Science and Optoelectronics Engineering CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of Sciences Beijing100190 China

Hybrid devices that combine superconductors (S) and semiconductors (Sm) have attracted great attention due to the integration of the properties of both materials, which relies on the interface details and the resulting coupling strength and wavefunction hybridization. However until now, none of the experiments have reported good control of band alignment of the interface, as well as its tunability to the coupling and hybridization. Here, the interface is modified by inducing specific argon milling while maintaining its high-quality, e.g., atomic connection, which results in a large induced superconducting gap and ballistic transport. By comparing with Schrödinger-Poisson calculations, it is proven that this method can vary the band bending/coupling strength and the electronic spatial distribution. In the strong coupling regime, the coexistence and tunability of crossed Andreev reflection and elastic co-tunnelling—key ingredients for the Kitaev chain—are confirmed. This method is also generic for other materials and achieves a hard and huge superconducting gap in Pb-InSb devices. Such a versatile method, compatible with the standard fabrication process and accompanied by the well-controlled modification of the interface, will definitely boost the creation of more sophisticated hybrid devices for exploring physics in solid-state systems. Copyright © 2023, The Authors. All rights reserved.

关键词： III-V semiconductors

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Quantum Advantage in Simulating Stochastic Processes

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Physical Review X 2021年第2期11卷 021019-021019页

作者： Kamil Korzekwa Matteo Lostaglio Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University 30-348 Kraków Poland International Centre for Theory of Quantum Technologies University of Gdańsk 80-308 Gdańsk Poland ICFO-Institut de Ciencies Fotoniques The Barcelona Institute of Science and Technology Castelldefels (Barcelona) 08860 Spain QuTech Delft University of Technology P.O. Box 5046 2600 GA Delft Netherlands

We investigate the problem of simulating classical stochastic processes through quantum dynamics and present three scenarios where memory or time quantum advantages arise. First, by introducing and analyzing a quantum version of the embeddability problem for stochastic matrices, we show that quantum memoryless dynamics can simulate classical processes that necessarily require memory. Second, by extending the notion of space-time cost of a stochastic process P to the quantum domain, we prove an advantage of the quantum cost of simulating P over the classical cost. Third, we demonstrate that the set of classical states accessible via Markovian master equations with quantum controls is larger than the set of those accessible with classical controls, leading, e.g., to a potential advantage in cooling protocols.

关键词： Quantum control Quantum information processing Resource theories

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Correction to: A Modified Anisotropic Diffusion Scheme for Signal-Dependent Noise Filtering

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Circuits, Systems, and Signal Processing 2024年第7期43卷 4220-4220页

作者： Ben Abdallah, Mariem Malek, Jihene Bajahzar, Abdullah Belmabrouk, Hafedh Faculty of Sciences Electronics and Microelectronics Laboratory University of Monastir Monastir Tunisia Department of Electronics Higher Institute of Applied Sciences and Technology of Sousse University of Sousse Sousse Tunisia Department of Computer Science and Information College of Science Majmaah University Al-Majmaah Saudi Arabia Department of Physics College of Science Majmaah University Al-Majmaah Saudi Arabia

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The CMS Statistical Analysis and Combination Tool: Combine

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Computing and Software for Big science 2024年第1期8卷 1-45页

作者： Zhokin, A. Zhizhin, I. Zarubin, A. Yuldashev, B.S. Voytishin, N. Vorotnikov, G. Vorobyev, A. Volkov, P. Uzunian, A. Uvarov, L. Toropin, A. Tlisova, I. Teryaev, O. Terkulov, A. Tcherniaev, E. Sulimov, V. Sosnov, D. Smirnov, V. Slabospitskii, S. Skovpen, Y. Shulha, S. Shmatov, S. Shalaev, V. Savrin, V. Savina, M. Radchenko, O. Popov, V. Polikarpov, S. Perfilov, M. Perelygin, V. Palichik, V. Oreshkin, V. Obraztsov, S. Nikitenko, A. Murzin, V. Matveev, V. Malakhov, A. Makarenko, V. Lychkovskaya, N. Levchenko, P. Lanev, A. Krasnikov, N. Kozyrev, A. Korenkov, V. Konstantinov, D. Kodolova, O. Klyukhin, V. Kirsanov, M. Kirpichnikov, D. Kirakosyan, M. Kim, V. Karneyeu, A. Karjavine, V. Kachanov, V. Ivanov, Y. Gribushin, A. Gorbunov, I. Golutvin, I. Golubev, N. Golovtcov, V. Gninenko, S. Gavrilov, V. Gavrilov, G. Dudko, L. Dubinin, M. Druzhkin, D. Dimova, T. Dermenev, A. Chistov, R. Chekhovsky, V. Chadeeva, M. Bunichev, V. Budkouski, D. Borshch, V. Boos, E. Blinov, V. Babaev, A. Azarkin, M. Aushev, T. Andreev, Yu. Andreev, V. Alexakhin, V. Afanasiev, S. Warden, A. Vetens, W. Tsoi, H.F. Teague, D. Smith, W.H. Sharma, V. Shang, V. Savin, A. Pinna, D. Pétré, L. Parida, G. Mondal, S. Mohammadi, A. Mallampalli, A. Sreekala, J. Madhusudanan Loveless, R. Lanaro, A. Koraka, C.K. Herve, A. Herndon, M. He, H. Galloni, C. Everaerts, P. De Bruyn, I. Dasu, S. Bose, T. Black, K. Banerjee, S. Aravind, A. Karchin, P.E. Bhattacharya, S. Neu, C. Ledovskoy, A. Hirosky, R. Hakala, J. Cox, B. Cardwell, B. Viinikainen, J. Velkovska, J. Tuo, S. Sheldon, P. Romeo, F. Melo, A. Elayavalli, R. Kunnawalkam Johns, W. Gurrola, A. Greene, S. Chen, Y. Appelt, E. Volobouev, I. Peltola, T. Mankel, A. Lee, S.W. Lamichhane, K. Kazhykarim, Y. Hussain, A. Hegde, V. Gogate, N. Damgov, J. Akchurin, N. Safonov, A. Rathjens, D. Overton, D. Mueller, R. Luo, S. Kim, H. Kamon, T. Huang, T. Gilmore, J. Eusebi, R. Bouhali, O. Akhter, T. Ahmad, M. Aebi, D. Spanier, S. Nibigira, E. Lee, L. Karunarathna, N. Kanuganti, A.R. Holmes, T. Higginbotham, S. Fiorendi, S. Delannoy Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Instituto De Alta Investigación Universidad de Tarapacá Casilla 7 D Arica Chile Beihang University Beijing China Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China Guangdong Provincial Key Laboratory of Nuclear Science and Guangdong-Hong Kong Joint Laboratory of Quantum Matter South China Normal University Guangzhou China Sun Yat-Sen University Guangzhou China University of Science and Technology of China Hefei China Nanjing Normal University Nanjing China Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) Institute of Modern Physics Fudan University Shanghai China Zhejiang University Hangzhou Zhejiang China Universidad de Los Andes Bogota Venezuela Universidad de Antioquia Medellin Colombia Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture University of Split Split Croatia Faculty of Science University of Split Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Universidad San Francisco de Quito Quito Ecuador Egyptian Network of High Energy Physics Academy of Scientific Research and Technology of the Arab Republic of Egypt Cairo Egypt Center for High

This paper describes the Combine software package used for statistical analyses by the CMS Collaboration. The package, originally designed to perform searches for a Higgs boson and the combined analysis of those searches, has evolved to become the statistical analysis tool presently used in the majority of measurements and searches performed by the CMS Collaboration. It is not specific to the CMS experiment, and this paper is intended to serve as a reference for users outside of the CMS Collaboration, providing an outline of the most salient features and capabilities. Readers are provided with the possibility to run Combine and reproduce examples provided in this paper using a publicly available container image. Since the package is constantly evolving to meet the demands of ever-increasing data sets and analysis sophistication, this paper cannot cover all details of Combine. However, the online documentation referenced within this paper provides an up-to-date and complete user guide. © CERN, for the benefit of the CMS Collaboration 2024.

关键词： CMS Combine Higgs Higgs boson Statistics

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Mössbauer spectroscopic study of amorphous Fe-gluconate

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Inorganica Chimica Acta 2020年 510卷 119760-119760页

作者： Dubiel, Stanislaw M. Gondek, Lukasz Żukrowski, Jan AGH University of Science and Technology Faculty of Physics and Applied Computer Science KrakówPL-30-059 Poland AGH University of Science and Technology Academic Center for Materials and Nanotechnology KrakówPL-30-059 Poland

Amorphous Fe-gluconate was studied by means of the X-ray diffraction and Mössbauer spectroscopy. Spectra measured in the temperature range between 78 and 295 K were analysed in terms of three doublets using a thin absorber approximation method. Two of the doublets were associated with the major Fe(II) phase (~72%) and one with the minor Fe(III) phase (~28%). Based on the obtained results the following quantities characteristic of lattice dynamical properties were determined: Debye temperature from the temperature dependence of the center shift and that of the spectral area (recoil-free factor), force constant, change of the kinetic and potential energies of vibrations. The lattice vibrations of Fe ions present in both Fe(II) and Fe(III) phases are not perfectly harmonic, yet on average they are. Similarities and differences to the crystalline Fe-gluconate are also reported. © 2020 The Authors

关键词： Lattice vibrations

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Transmission distance in the space of quantum channels

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Physical Review A 2023年第1期108卷 012604-012604页

作者： Diego G. Bussandri Pedro W. Lamberti Karol Życzkowski Instituto de Física La Plata and Departamento de Física Facultad de Ciencias Exactas Universidad Nacional de La Plata C.C. 67 1900 La Plata Argentina Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina Avenida Rivadavia 1917 C1033AAJ Caba Argentina Facultad de Matemática Astronomía Física y Computación Universidad Nacional de Córdoba Avenida Medina Allende s/nCiudad Universitaria X5000HUA Córdoba Argentina Faculty of Physics Astronomy and Applied Computer Science Institute of Theoretical Physics Jagiellonian University ul. Łojasiewicza 11 30-348 Kraków Poland Center for Theoretical Physics Polish Academy of Sciences Al. Lotników 32/46 02-668 Warszawa Poland

We analyze two ways to obtain distinguishability measures between quantum maps by employing the square root of the quantum Jensen-Shannon divergence, which forms a true distance in the space of density operators. The arising measures are the transmission distance between quantum channels and the entropic channel divergence. We investigate their mathematical properties and discuss their physical meaning. Additionally, we establish a chain rule for the entropic channel divergence, which implies the amortization collapse, a relevant result with potential applications in the field of discrimination of quantum channels and converse bounds. Finally, we analyze the distinguishability between two given Pauli channels and study exemplary Hamiltonian dynamics under decoherence.

关键词： Open quantum systems & decoherence Quantum benchmarking Quantum channels Quantum cryptography Quantum information theory Quantum protocols Quantum teleportation

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Analysis, circuit realization and controls of an autonomous Morse jerk oscillator

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SeMA Journal 2021年第3期78卷 415-433页

作者： Ainamon, Cyrille Tamba, Victor Kamdoum Pone, Justin Roger Mboupda Kingni, Sifeu Takougang Malwe, Hubert Boudoue Orou, Jean Bio Chabi Institut de Mathématiques et de Sciences Physiques Université d’Abomey-Calavi B.P. 613 Porto Novo Benin Department of Telecommunication and Network Engineering IUT-Fotso Victor of Bandjoun University of Dschang PO Box 134 Bandjoun Cameroon Electrical Engineering Department of IUT-Fotso Victor of Bandjoun Research Unit of Automation and Applied Computer (RU-AIA) University of Dschang PO Box 134 Bandjoun Cameroon Department of Mechanical Petroleum and Gas Engineering Faculty of Mines and Petroleum Industries University of Maroua PO Box 46 Maroua Cameroon Department of Physics Faculty of Science University of Maroua PO Box 814 Maroua Cameroon

In this paper, an autonomous Morse jerk oscillator which is designed by converting an autonomous two-dimensional Morse oscillator to a jerk oscillator, is analysed. The stability of its unique equilibrium point reveals the existence of Hopf bifurcation. Periodic and chaotic oscillations, antimonotonicity, chaotic bubbles and coexisting attractors are generated in the proposed jerk oscillator. Then, this proposed jerk oscillator is implemented in PSIM software and realized in a printed circuit board to verify the numerical results. The experimental/PSIM results agree well with the numerical simulations. Moreover, it is possible to control partially or totally the amplitude of its signals by introducing two additional parameters in the rate-equations describing the proposed jerk oscillator. Furthermore based on the Routh–Hurwitz conditions and using a single linear feedback controller, the proposed jerk oscillator is controlled to its unique equilibrium point. Finally, the coexistence between periodic and chaotic attractors is destroyed and controlled to a desired trajectory thank to the linear augmentation method. © 2021, The Author(s), under exclusive licence to Sociedad Española de Matemática Aplicada.

关键词： Antimonotonicity Chaotic and coexisting attractors Control Electronic circuit realization Hopf bifurcation Morse jerk oscillator

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