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Cooperation and Competition in Synchronous Open Quantum Systems

physical Review Letters 2023年第3期131卷 030401-030401页

作者： Taufiq Murtadho Sai Vinjanampathy Juzar Thingna Center for Theoretical Physics of Complex Systems Institute for Basic Science (IBS) Daejeon 34126 Republic of Korea Basic Science Program Korea University of Science and Technology Daejeon 34113 Republic of Korea School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Department of Physics Indian Institute of Technology-Bombay Powai Mumbai 400076 India Centre of Excellence in Quantum Information Computation Science and Technology Indian Institute of Technology Bombay Powai Mumbai 400076 India Centre for Quantum Technologies National University of Singapore 3 Science Drive 2 Singapore Singapore Department of Physics and Applied Physics University of Massachusetts Lowell Massachusetts 01854 USA

Synchronization between limit cycle oscillators can arise through entrainment to an external drive or through mutual coupling. The interplay between the two mechanisms has been studied in classical synchronizing systems, but not in quantum systems. Here, we point out that competition and cooperation between the two mechanisms can occur due to phase pulling and phase repulsion in quantum systems. We study their interplay in collectively driven degenerate quantum thermal machines and show that these mechanisms either cooperate or compete depending on the working mode of the machine (refrigerator or engine). The entrainment-mutual synchronization interplay persists with an increase in the number of degenerate levels, while in the thermodynamic limit of degeneracy, mutual synchronization dominates. Overall, our work investigates the effect of degeneracy and multilevel scaling of quantum synchronization and shows how different synchronizing mechanisms can cooperate and compete in quantum systems.

关键词： Masers Open quantum systems & decoherence Quantum statistical mechanics Synchronization Quantum heat engines & refrigerators

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Restoration of Gas Dynamics on Laser Filamentation at High Repetition Rates

Restoration of Gas Dynamics on Laser Filamentation at High R...

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CLEO: QELS_Fundamental science, QELS 2022

作者： Koulouklidis, Anastasios D. Lanara, Christina Fedorov, Vladimir Yu. Tzortzakis, Stelios Institute of Electronic Structure and Laser FORTH Crete Heraklion70013 Greece Department of Materials Science and Technology University of Crete Crete Heraklion70013 Greece Science Program Texas A&M University at Qatar P.O. Box 23874 Doha Qatar P.N. Lebedev Physical Institute The Russian Academy of Sciences 53 Leninskiy Prospekt Moscow119991 Russia

We demonstrate that thermal effects limiting femtosecond laser filamentation in gases can be addressed using a simple gas replenishment method. This enables high average power filamentation applications like THz sourc... 详细信息

ISBN: (纸本)9781557528209

关键词： Gas dynamics

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Complexity Analysis based on Parietal Fuzzy Entropy to Facilitate ADHD Diagnosis in Young Children 46

Complexity Analysis based on Parietal Fuzzy Entropy to Facil...

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46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2024

作者： Huang, I-Wen Jheng, Yu-Ci Chen, I-Chun Ko, Li-Wei National Yang Ming Chiao Tung University Institute of Biomedical Engineering Hsinchu300040 Taiwan National Yang Ming Chiao Tung University Institute of Electrical and Control Engineering Hsinchu300040 Taiwan National Yang Ming Chiao Tung University International Program in Interdisciplinary Neuroscience College of Biological Science and Technology Hsinchu300040 Taiwan Ton-Yen General Hospital Department of Physical Medicine and Rehabilitation Hsinchu302048 Taiwan Kaohsiung Medical University Drug Development and Value Creation Research Center Kaohsiung807378 Taiwan

ISBN: (纸本)9798350371499

Attention deficit hyperactivity disorder (ADHD) is the most common condition affecting the development of neurons in children. Therefore, early and accurate diagnosis of ADHD in young children is of paramount importance. In this study, the 8-channel wireless wearable EEG measurement device was employed to record EEG data from 30 children diagnosed with ADHD and 30 typical development (TD) young children aged 4-7 years. The data was collected both during rest and while the children performed a Kiddie Continuous Performance Test (K-CPT). We extract relative power spectral density (PSD) unaffected by factors like skull resistance and thickness. Additionally, a range of complex entropy values based on the time domain were extracted. These included sample entropy (SaEn), permutation entropy (PeEn), singular value decomposition entropy (SvdEn), and fuzzy entropy (FuEn). We compare the performance of k-Nearest Neighbors (kNN), Support Vector Machine (SVM), and XGBoost, and utilized the sequential forward selection (SFS) feature selection method in the wrapper approach. Through this process, the study identified the most effective EEG data segments and feature subsets. The findings indicated that using a combination of resting and K-CPT EEG data yielded greater discriminability. Notably, the study found that extracting beta power from the right occipital lobe along with fuzzy entropy from the parietal lobe resulted in optimal accuracy of 90% in distinguishing between children with ADHD and TD children. These outcomes highlight the potential of relative PSD and complexity metrics to support the clinical diagnosis of early ADHD. Furthermore, these metrics may contain unique neurobiomarkers that could be valuable for devising early intervention strategies. © 2024 IEEE.

关键词： Diseases

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Strong, Mid-IR Driven THz Generation for Nonlinear Spectroscopy

Strong, Mid-IR Driven THz Generation for Nonlinear Spectrosc...

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CLEO: science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Gollner, Claudia Jutas, Rokas Kreil, Dominik Dirin, Dmitry N. Boehme, Simon C. Baltuška, Andrius Kovalenko, Maksym V. Koulouklidis, Anastasios D. Fedorov, Vladimir Yu. Tzortzakis, Stelios Shalaby, Mostafa Pugžlys, Audrius Stanford Institute for Materials & Energy Sciences SLAC National Accelerator Laboratory 2575 Sand Hill Rd Menlo ParkCA94025 United States Photonics Institute TU Wien Gusshausstrasse 27-387 WienA-1040 Austria Institute for Theoretical Physics Johannes Kepler University Altenbergerstraße 69 LinzA-4040 Austria Institute of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich 10 Vladimir Prelog Weg 1 ZürichCH-8093 Switzerland Empa-Swiss Federal Laboratories for Materials Science and Technology DübendorfCH-8600 Switzerland Center for Physical Sciences & Technology Savanoriu Ave. 231 VilniusLT-02300 Lithuania P.O. Box 1527 HeraklionGR-71110 Greece Science Program Texas A&M University at Qatar P.O. Box 23874 Doha Qatar P.N. Lebedev Physical Institute The Russian Academy of Sciences 53 Leninskiy Prospekt Moscow119991 Russia Department of Materials Science and Technology University of Crete HeraklionGR-71003 Greece Swiss Terahertz Research-Zurich Techpark Zurich8005 Switzerland Park Innovaare VilligenCH-5234 Switzerland Key Laboratory of Terahertz Optoelectronics Beijing Advnaced Innovation Center of Imaging Technology CNU Bejing100048 China

We report on strong-field THz sources from optical rectification in organic crystals or two-color plasma filaments, driven by intense mid-IR pulses. Non-linear perturbation of semiconductor materials is demonstrated b...

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Strong, Mid-IR Driven THz Generation for Nonlinear Spectroscopy

Strong, Mid-IR Driven THz Generation for Nonlinear Spectrosc...

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2024 Conference on Lasers and Electro-Optics, CLEO 2024

ISBN: (纸本)9781957171395

关键词： Semiconductor lasers

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Sm 2 O 3 -induced superconductivity enhancements in bulk Y-123 ceramics synthesized via a novel modified thermal decomposition method

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Journal of Materials Research and technology 2025年 36卷 9168-9181页

作者： Ryad Alhadei Mohamed Arebat Mohd Mustafa Awang Kechik Yap Siew Hong Chen Soo Kien Lim Kean Pah Hussien Baqiah Fatma Barood Syahrul Humaidi Hoo Keong Peh Abdul Halim Shaari Muhammad Kashfi Shabdin Muralidhar Miryala Superconductor & Thin Films Laboratory Department of Physics Faculty of Science Universiti Putra Malaysia UPM Serdang 43400 Selangor Malaysia Department of Physics Faculty of Science El-Mergib University Al Khums City Libya Shandong Key Laboratory of Biophysics Institute of Biophysics Dezhou University No. 566 University Rd. West Dezhou Shandong China Department of Physics Faculty of Science Azzaytuna University Tarhuna City Libya Postgraduate Program (Physics) FMIPA Universitas Sumatera Utara Medan 20222 Indonesia Materials for Energy and Environmental Laboratory Superconducting Materials Shibaura Institute of Technology 3 Chome-7-5 Toyosu Koto Tokyo 135-8548 Japan

This study presents a novel modified thermal decomposition (MTD) technique for the synthesis of bulk YBa 2 Cu 3 O 7-δ (Y-123) ceramics with varying samarium oxide (Sm 2 O 3 ) additions (0.0,0.1,0.3,0.5, 1.0 and 5.0 wt%) under ambient conditions. A structural analysis via X-ray diffraction (XRD) with Rietveld refinement confirmed the dominant formation of the orthorhombic Y-123 phase, accompanied by minor secondary phases, such as Y 2 BaCuO 5 (Y-211) and BaCuO 2 . Notably, at 0.1 wt% Sm 2 O 3 , a distinct Sm 1.15 Ba 1.85 Cu 3 O 7 (Sm-123) phase emerged, contributing to enhanced phase stability and effective flux pinning. The optimized 0.1 wt% sample exhibited the highest oxygen content (∼6.87), largest crystallite size (∼1865 Å), and lowest lattice strain, factors directly linked to enhanced superconducting properties. Field emission scanning electron microscopy (FESEM) revealed significant grain growth (∼8.14 μm) and enhanced grain connectivity at 0.1 wt%, while higher doping levels caused porosity and microstructural deterioration. High-resolution imaging further revealed zigzag grain boundaries and nanoscale inclusions acting as flux pinning centers. Energy-dispersive X-ray spectroscopy (EDX) confirmed the uniform elemental distribution and successful Sm incorporation. The 0.1 wt% Sm 2 O 3 -added sample achieved the highest critical current density ( J c = 5.62 kA/cm 2 at 77 K), with a narrow superconducting transition width (Δ T c ≈ 2.96 K), a T c-onset of 92.21 K, and a T c-zero of 89.25 K, indicating minimal weak-link behavior. These findings demonstrate that low-level Sm 2 O 3 addition effectively introduces flux pinning centers while preserving crystal integrity and oxygen stoichiometry. The resulting enhancement in superconducting performance underscores the scalability and efficacy of the MTD route for producing high-performance Y-123 ceramics.

关键词： Y-123 ceramics Sm 2 O 3 addition Modified thermal decomposition (MTD) Phase formation Critical current density ( J c ) Superconductivity enhancement

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Therapeutic challenge for immunotherapy targeting cold colorectal cancer: A narrative review

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World Journal of Clinical Oncology 2023年第2期14卷 81-88页

作者： Shi-Xun Ma Li Li Hui Cai Tian-Kang Guo Lei-Sheng Zhang Department of General Surgery Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina Scientific Research Division Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina Key Laboratory of Radiation Technology and Biophysics Hefei Institute of Physical ScienceChinese Academy of SciencesHefei 230031Anhui ProvinceChina

Cold colorectal tumors are not likely to trigger a robust immune response and tend to suppress the immune *** may be three ***,the complex tumor microenvironment of cold colorectal cancer(CRC)leads to tolerance and clearance of ***,the modification and concealment of tumor-specific targets in cold CRC cause immune escape and immune response ***,the difference in number and function of immune cell subsets in patients with cold CRC makes them respond poorly to ***,we can only overcome the challenges in immunotherapy of cold CRC through in-depth research and understanding the changes and mechanisms in the above three aspects of cold CRC.

关键词： Cold colorectal cancer Immunotherapy Tumor microenvironment Immune targets Immune cells

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Alternative photothermal/electrothermal hierarchical membrane for hypersaline water treatment

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SusMat 2022年第6期2卷 679-688页

作者： Miao Wang Wen He Yuhui Hua Xinwen Xie Shiyan Chen Lei Zhou Yunmao Zhang Yaqi Hou Shihong Lin Haiping Xia Jing Zheng Xu Hou State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina College of Materials Xiamen UniversityXiamenChina Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials ResearchJiujiang Research InstituteCollege of Physical Science and TechnologyXiamen UniversityXiamenChina Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis Department of ChemistrySouthern University of Science and TechnologyShenzhenChina Collaborative Innovation Center of Chemistry for Energy Materials(iChEM) Xiamen UniversityXiamenChina Department of Civil and Environmental Engineering Vanderbilt UniversityNashvilleTennesseeUSA Interdisciplinary Material Science Program Vanderbilt UniversityNashvilleTennesseeUSA Tan Kah Kee Innovation Laboratory Xiamen UniversityXiamenChina Engineering Research Center of Electrochemical Technologies of Ministry of Education Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina

Over the last decades,the treatment of the large quantities of hypersaline wastewater generated by conventional industries,inland desalination,and fossil-fueled power plants has been an important economic issue and also an inescapable green ***,we developed a versatile interfacial heating membrane with alternating utilization of electricity or solar energy for hypersaline water *** hierarchical membrane functions both as a separation membrane and an interface heater,which can quickly(<0.1 s)convert electricity or solar energy into heat to evaporate the outermost layer of hypersaline *** 10wt% hyper-saline water,the freshwater production rate can reach 16.8kg/m^(2)⋅h by applying a voltage of 10 V and 1.36 kg/m^(2)⋅h under 1-sun ***,it exhibits high electrochemical resistance to corrosion and therefore remains stable tack-ling hypersaline water(>5 wt%),with a high salt rejection rate of 99.99%.This system shows an efficient desalination strategy that can provide fresh water from brines for agriculture and industry,and even for daily life.

关键词： carbon nanotubes electrothermal hypersaline water treatment interface evaporate pho-tothermal

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Transcriptomic Analysis of Angiogenesis on Datasets Derived from Experiments Performed on Mice in Space 73

Transcriptomic Analysis of Angiogenesis on Datasets Derived ...

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73rd International Astronautical Congress, IAC 2022

作者： Barua, Subhrajit Singh, Ruth Garg, Palvi Rizwan, Sarah The Faculty of Biotechnologies ITMO University Kronverkskiy Prospekt 49 St Petersburg197101 Russia Department of Biophysics University of Mumbai Mumbai400029 India Department of Chemical Engineering Dr. B R Ambedkar National Institute of Technology Jalandhar144011 India Physical Science Stream St. Joseph's Girls School Nugegoda10250 Sri Lanka

Space is an extremely harsh environment with numerous physical stressors like microgravity and radiation. Various health issues have been reported by astronauts over time including delayed wound healing. Wound healing is a complex process that involves different cell types with various functions. It can be divided into four major phases, namely, 1) coagulation and hemostasis, which starts immediately after injury;2) inflammation, shortly after, lasting a few days;3) proliferation, occurring in several days;4) wound remodeling, lasting days or even months. Angiogenesis, an important step in wound healing occurs in the granulation tissue to allow nutrient and waste exchange. In this study, in-silico analysis of transcriptomic data isolated from murine dorsal skin was done to identify differentially expressed genes (DEGs) involved in angiogenesis. Using these DEGs, predictive analysis for transcription factors and kinases was done. The identified DEGs and the predicted kinases and transcription factors involved in angiogenesis formed a list of potential targets that could be used to optimize wound healing in case of traumatic injury in space. Many potential countermeasures to optimize angiogenesis are currently under development. The efficacy of such countermeasures, alone or in combination with other biochemical therapies, remains to be studied in the future. Not only in case of injuries but also for performing surgeries in space, the power of regulating wound healing is an important asset to have. Copyright © 2022 by the International Astronautical Federation (IAF). All rights reserved.

关键词： Transcription factors

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Ever more Optimized Simulations of Fermionic Systems on a Quantum Computer 23

Ever more Optimized Simulations of Fermionic Systems on a Qu...

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Proceedings of the 60th Annual ACM/IEEE Design Automation Conference

作者： Qingfeng Wang Ze-Pei Cian Ming Li Igor L. Markov Yunseong Nam Chemical Physics Program and Institute for Physical Science and Technology University of Maryland College Park Maryland USA Joint Quantum Institute University of Maryland College Park Maryland USA Atom Computing Inc. Berkeley California USA Nova Ukraine Stanford CA Department of Physics University of Maryland College Park Maryland USA

ISBN: (纸本)9798350323481

Despite using a novel model of computation, quantum computers break down programs into elementary gates. Among such gates, entangling gates are the most expensive. In the context of fermionic simulations, we develop a suite of compilation and optimization techniques that massively reduce the entangling-gate counts. We exploit the well-studied non-quantum optimization algorithms to achieve up to 24% savings over the state of the art for several small-molecule simulations, with no loss of accuracy or hidden costs. Our methodologies straightforwardly generalize to wider classes of near-term simulations of the ground state of a fermionic system or real-time simulations probing dynamical properties of a fermionic system.

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