arXiv - PHYS - Atomic and Molecular Clusters最新文献_第7页

Topical Issue "Dynamics of Systems on the Nanoscale (2021)". Editorial 专题问题“纳米级系统动力学(2021)”。编辑

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-09-05 DOI: arxiv-2309.02312

Alexey V. Verkhovtsev, Vincenzo Guidi, Nigel J. Mason, Andrey V. Solov'yov

{"title":"Topical Issue \"Dynamics of Systems on the Nanoscale (2021)\". Editorial","authors":"Alexey V. Verkhovtsev, Vincenzo Guidi, Nigel J. Mason, Andrey V. Solov'yov","doi":"arxiv-2309.02312","DOIUrl":"https://doi.org/arxiv-2309.02312","url":null,"abstract":"Exploration of the structure formation and dynamics of animate and inanimate\u0000matter on the nanometer scale is a highly interdisciplinary field of rapidly\u0000emerging research. It is relevant for various molecular and nanoscale systems\u0000of different origins and compositions and concerns numerous phenomena\u0000originating from physics, chemistry, biology, and materials science. This\u0000topical issue presents a collection of research papers devoted to different\u0000aspects of the Dynamics of Systems on the Nanoscale. Some of the contributions\u0000discuss specific applications of the research results in several modern and\u0000emerging technologies, such as controlled nanofabrication with charged particle\u0000beams or the design and practical realization of novel gamma-ray crystal-based\u0000light sources. Most works presented in this topical issue were reported at the\u0000joint Sixth International Conference \"Dynamics of Systems on the Nanoscale\" and\u0000the tenth International Symposium \"Atomic Cluster Collisions\" (DySoN-ISACC\u00002021), which were held in Santa Margherita Ligure, Italy, in October 2021.","PeriodicalId":501259,"journal":{"name":"arXiv - PHYS - Atomic and Molecular Clusters","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138522615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular dynamics simulation of nanofilament breakage in neuromorphic nanoparticle networks 神经形态纳米颗粒网络中纳米丝断裂的分子动力学模拟

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-09-05 DOI: arxiv-2309.02282

Wenkai Wu, Theodoros Pavloudis, Alexey V. Verkhovtsev, Andrey V. Solov'yov, Richard E. Palmer

{"title":"Molecular dynamics simulation of nanofilament breakage in neuromorphic nanoparticle networks","authors":"Wenkai Wu, Theodoros Pavloudis, Alexey V. Verkhovtsev, Andrey V. Solov'yov, Richard E. Palmer","doi":"arxiv-2309.02282","DOIUrl":"https://doi.org/arxiv-2309.02282","url":null,"abstract":"Neuromorphic computing systems may be the future of computing and\u0000cluster-based networks are a promising architecture for the realization of\u0000these systems. The creation and dissolution of synapses between the clusters\u0000are of great importance for their function. In this work, we model the thermal\u0000breakage of a gold nanofilament located between two gold nanoparticles via\u0000molecular dynamics simulations to study on the mechanisms of neuromorphic\u0000nanoparticle-based devices. We employ simulations of Au nanowires of different\u0000lengths ($2-8$ nm), widths ($0.4-0.8$ nm) and shapes connecting two Au$_{1415}$\u0000nanoparticles (NPs) and monitor the evolution of the system via a detailed\u0000structural identification analysis. We found that atoms of the nanofilament\u0000gradually aggregate towards the clusters, causing the middle of the wire to\u0000gradually thin and then break. Most of the system remains crystalline during\u0000this process but the center is molten. The terminal NPs increase the melting\u0000point of the NWs by fixing the middle wire and act as recrystallization areas.\u0000We report a strong dependence on the width of the NWs, but also their length\u0000and structure. These results may serve as guidelines for the realization of\u0000cluster-based neuromorphic computing systems.","PeriodicalId":501259,"journal":{"name":"arXiv - PHYS - Atomic and Molecular Clusters","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138522625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-center resonant photoionization-excitation driven by combined intra- and interatomic electron correlations 由原子内和原子间电子关联驱动的双中心共振光离激发

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-09-03 DOI: arxiv-2309.01143

S. Kim, S. Steinhäuser, A. B. Voitkiv, C. Müller

引用次数: 0

Melting, bubble-like expansion and explosion of superheated plasmonic nanoparticles 过热等离子体纳米粒子的熔化、气泡状膨胀和爆炸

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-09-01 DOI: arxiv-2309.00433

Simon Dold, Thomas Reichenbach, Alessandro Colombo, Jakob Jordan, Ingo Barke, Patrick Behrens, Nils Bernhardt, Jonathan Correa, Stefan Düsterer, Benjamin Erk, Thomas Fennel, Linos Hecht, Andrea Heilrath, Robert Irsig, Norman Iwe, Patrice Kolb, Björn Kruse, Bruno Langbehn, Bastian Manschwetus, Philipp Marienhagen, Franklin Martinez, Karl-Heinz Meiwes Broer, Kevin Oldenburg, Christopher Passow, Christian Peltz, Mario Sauppe, Fabian Seel, Rico Mayro P. Tanyag, Rolf Treusch, Anatoli Ulmer, Saida Walz, Michael Moseler, Thomas Möller, Daniela Rupp, Bernd von Issendorff

{"title":"Melting, bubble-like expansion and explosion of superheated plasmonic nanoparticles","authors":"Simon Dold, Thomas Reichenbach, Alessandro Colombo, Jakob Jordan, Ingo Barke, Patrick Behrens, Nils Bernhardt, Jonathan Correa, Stefan Düsterer, Benjamin Erk, Thomas Fennel, Linos Hecht, Andrea Heilrath, Robert Irsig, Norman Iwe, Patrice Kolb, Björn Kruse, Bruno Langbehn, Bastian Manschwetus, Philipp Marienhagen, Franklin Martinez, Karl-Heinz Meiwes Broer, Kevin Oldenburg, Christopher Passow, Christian Peltz, Mario Sauppe, Fabian Seel, Rico Mayro P. Tanyag, Rolf Treusch, Anatoli Ulmer, Saida Walz, Michael Moseler, Thomas Möller, Daniela Rupp, Bernd von Issendorff","doi":"arxiv-2309.00433","DOIUrl":"https://doi.org/arxiv-2309.00433","url":null,"abstract":"We report on time-resolved coherent diffraction imaging of gas-phase silver\u0000nanoparticles, strongly heated via their plasmon resonance. The x-ray\u0000diffraction images reveal a broad range of phenomena for different excitation\u0000strengths, from simple melting over strong cavitation to explosive\u0000disintegration. Molecular dynamics simulations fully reproduce this behavior\u0000and show that the heating induces rather similar trajectories through the phase\u0000diagram in all cases, with the very different outcomes being due only to\u0000whether and where the stability limit of the metastable superheated liquid is\u0000crossed.","PeriodicalId":501259,"journal":{"name":"arXiv - PHYS - Atomic and Molecular Clusters","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138522726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonadiabatic Laser-Induced Alignment Dynamics of Molecules on a Surface 非绝热激光诱导分子在表面上的排列动力学

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-29 DOI: arxiv-2308.15247

Lorenz Kranabetter, Henrik H. Kristensen, Areg Ghazaryan, Constant A. Schouder, Adam S. Chatterley, Paul Janssen, Frank Jensen, Robert E. Zillich, Mikhail Lemeshko, Henrik Stapelfeldt

引用次数: 0

Laser Scheme for Doppler Cooling of the Hydroxyl Cation (OH$^+$) 羟基阳离子(OH$^+$)的激光多普勒冷却方案

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-28 DOI: arxiv-2308.14729

Niccolò Bigagli, Daniel W. Savin, Sebastian Will

引用次数: 0

Macroscopic distant magnon modes entanglement via a squeezed drive 通过压缩驱动器的宏观远距离磁振子模纠缠

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-25 DOI: arxiv-2308.13586

Kamran Ullah, Muhammad Tahir Naseem, Ozgur E. Mustecaplioglu

引用次数: 0

Comprehensive Molecular Representation from Equivariant Transformer 等变变压器的综合分子表示

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-21 DOI: arxiv-2308.10752

Nianze Tao, Hiromi Morimoto, Stefano Leoni

引用次数: 0

Unraveling the ultrafast dynamics of thermal-energy chemical reactions 揭示热能化学反应的超快动力学

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-18 DOI: arxiv-2308.09602

Matthew S. Robinson, Jochen Küpper

引用次数: 0

Efficient spectral broadening and few-cycle pulse generation with multiple thin water films 有效的光谱展宽和多水薄膜的短周期脉冲产生

arXiv - PHYS - Atomic and Molecular Clusters Pub Date : 2023-08-17 DOI: arxiv-2308.08845

Jiacheng Huang, Xiang Lu, Feilong Hu, Jie Long, Jiajun Tang, Lixin He, Qingbin Zhang, Pengfei Lan, Peixiang Lu

{"title":"Efficient spectral broadening and few-cycle pulse generation with multiple thin water films","authors":"Jiacheng Huang, Xiang Lu, Feilong Hu, Jie Long, Jiajun Tang, Lixin He, Qingbin Zhang, Pengfei Lan, Peixiang Lu","doi":"arxiv-2308.08845","DOIUrl":"https://doi.org/arxiv-2308.08845","url":null,"abstract":"High-energy, few-cycle laser pulses are essential for numerous applications\u0000in the fields of ultrafast optics and strong-field physics, due to their\u0000ultrafast temporal resolution and high peak intensity. In this work, different\u0000from the traditional hollow-core fibers and multiple thin solid plates, we\u0000represent the first demonstration of the octave-spanning supercontinuum\u0000broadening by utilizing multiple ultrathin liquid films (MTLFs) as the\u0000nonlinear media. The continuum covers a range from 380 to 1050 nm,\u0000corresponding to a Fourier transform limit pulse width of 2.5 fs, when 35 fs\u0000Ti:sapphire laser pulse is applied on the MTLFs. The output pulses are\u0000compressed to 3.9 fs by employing chirped mirrors. Furthermore, a continuous\u0000high-order harmonic spectrum up to the 33rd order is realized by subjecting the\u0000compressed laser pulses to interact with Kr gas. The utilization of flowing\u0000water films eliminates permanent optical damage and enables wider and stronger\u0000spectrum broadening. Therefore, this MTLFs scheme provides new solutions for\u0000the generation of highly efficient femtosecond supercontinuum and nonlinear\u0000pulse compression, with potential applications in the fields of strong-field\u0000physics and attosecond science.","PeriodicalId":501259,"journal":{"name":"arXiv - PHYS - Atomic and Molecular Clusters","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138522618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0