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Intersections of ultracold atomic polarons and nuclear clusters: how is a chart of nuclides modified in dilute neutron matter? 超冷原子极子与核簇的交汇：稀中子物质中的核素图是如何变化的？
AAPPS Bulletin Pub Date : 2024-02-06 DOI: 10.1007/s43673-024-00117-7
Hiroyuki Tajima, Hajime Moriya, Wataru Horiuchi, Eiji Nakano, Kei Iida
{"title":"Intersections of ultracold atomic polarons and nuclear clusters: how is a chart of nuclides modified in dilute neutron matter?","authors":"Hiroyuki Tajima,&nbsp;Hajime Moriya,&nbsp;Wataru Horiuchi,&nbsp;Eiji Nakano,&nbsp;Kei Iida","doi":"10.1007/s43673-024-00117-7","DOIUrl":"10.1007/s43673-024-00117-7","url":null,"abstract":"<div><p>Neutron star observations, as well as experiments on neutron-rich nuclei, used to motivate one to look at degenerate nuclear matter from its extreme, namely, pure neutron matter. As an important next step, impurities and clusters in dilute neutron matter have attracted special attention. In this paper, we review in-medium properties of these objects on the basis of the physics of polarons, which have been recently realized in ultracold atomic experiments. We discuss how such atomic and nuclear systems are related to each other in terms of polarons. In addition to the interdisciplinary understanding of in-medium nuclear clusters, it is shown that the quasiparticle energy of a single proton in neutron matter is associated with the symmetry energy, implying a novel route toward the nuclear equation of state from the neutron-rich side.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-024-00117-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Density-based Reactivity Theory Applied to Excited States 基于密度的反应性理论应用于激发态
AAPPS Bulletin Pub Date : 2024-02-02 DOI: 10.1007/s43673-023-00114-2
Xiaoyan An, Wenbiao Zhang, Xin He, Meng Li, Chunying Rong, Shubin Liu
{"title":"Density-based Reactivity Theory Applied to Excited States","authors":"Xiaoyan An,&nbsp;Wenbiao Zhang,&nbsp;Xin He,&nbsp;Meng Li,&nbsp;Chunying Rong,&nbsp;Shubin Liu","doi":"10.1007/s43673-023-00114-2","DOIUrl":"10.1007/s43673-023-00114-2","url":null,"abstract":"<div><p>Excited states are essential to many chemical processes in photosynthesis, solar cells, light-emitting diodes, and so on, yet how to formulate, quantify, and predict physiochemical properties for excited states from the theoretical perspective is far from being established. In this work, we leverage the four density-based frameworks from density functional theory (DFT) including orbital-free DFT, conceptual DFT, information-theoretic approach and direct use of density associated descriptors and apply them to the lowest singlet and triplet excited states for a variety of molecular systems to examine their stability, bonding, and reactivity propensities. Our results from the present study elucidate that it is feasible to employ these density-based frameworks to appreciate physiochemical properties for excited states and that excited state propensities can be markedly different from, sometime completely opposite to, those in the ground state. This work is the first effort, to the best of our knowledge, utilizing density-based reactivity frameworks to excited state. It should offer ample opportunities in the future to deal with real-world problems in photophysical and photochemical processes and transformations.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00114-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142409410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
News and views (1 & 2) 新闻和观点（1 和 2）
AAPPS Bulletin Pub Date : 2024-02-01 DOI: 10.1007/s43673-024-00116-8
AAPPS Bulletin
{"title":"News and views (1 & 2)","authors":"AAPPS Bulletin","doi":"10.1007/s43673-024-00116-8","DOIUrl":"10.1007/s43673-024-00116-8","url":null,"abstract":"","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-024-00116-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139688109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studies on electromagnetic dipole responses of atomic nuclei at RCNP 在 RCNP 研究原子核的电磁偶极响应
AAPPS Bulletin Pub Date : 2024-01-11 DOI: 10.1007/s43673-023-00108-0
Atsushi Tamii, Nobuyuki Kobayashi
{"title":"Studies on electromagnetic dipole responses of atomic nuclei at RCNP","authors":"Atsushi Tamii,&nbsp;Nobuyuki Kobayashi","doi":"10.1007/s43673-023-00108-0","DOIUrl":"10.1007/s43673-023-00108-0","url":null,"abstract":"<div><p>Electric dipole (<i>E</i>1) and spin-magnetic dipole (spin-<i>M</i>1) responses of nuclei have been studied by proton inelastic scattering experiments at forward angles, including zero degrees, at the Research Center for Nuclear Physics (RCNP) by employing a proton beam 295 or 392 MeV and the high-resolution magnetic spectrometer Grand Raiden. The <i>E</i>1 response of nuclei is the most fundamental nuclear response to the external field and is relevant to photo-nuclear reactions. After introducing the relevant nuclear matrix elements and the experimental methods, several recent experimental works are highlighted that include (<i>E</i>1) polarizability and the extraction of the symmetry energy parameters, pygmy dipole resonance, gamma-coincidence measurements, isoscalar and isovector spin-<i>M</i>1 excitations and the <i>np</i> spin correlation in the ground state, and gamma-emission probability for neutral current neutrino detection. A project, PANDORA, is introduced that aims at a systematic study of photo-nuclear reactions and decay branching ratios for light nuclei.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00108-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139438060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
STM studies for surface-mounted molecular rotors: a mini review 表面安装分子转子的 STM 研究：小型综述
AAPPS Bulletin Pub Date : 2024-01-09 DOI: 10.1007/s43673-023-00107-1
Tianyi Yang, Ruiqin Zhang
{"title":"STM studies for surface-mounted molecular rotors: a mini review","authors":"Tianyi Yang,&nbsp;Ruiqin Zhang","doi":"10.1007/s43673-023-00107-1","DOIUrl":"10.1007/s43673-023-00107-1","url":null,"abstract":"<div><p>A molecular rotor is a molecule/molecular system that performs rotary motions under an external stimulus. Molecular rotors are promising for applications in medicine, optical usage, information science, etc. A molecular rotor is also a crucial component in constructing more sophisticated functional molecular machines. Anchoring molecular rotors on surfaces is regarded as a feasible way of building functional molecular rotor systems. Scanning tunneling microscope (STM) is a powerful tool for studying surface dynamics in real space on atomic precision. It provides an ideal platform for both qualitatively and quantitively investigating single and self-assembled molecular rotors mounted on surfaces. Herein, we review a series of studies utilizing STM to unveil the methodologies that are increasingly used in the area of surface-mounted molecule rotors. A combined usage of these methodologies is more and more necessary for researchers to advance the molecular rotor study in future.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00107-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139443066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The two-body strong decays of the fully-charm tetraquark states 全粲四夸克态的二体强衰变
AAPPS Bulletin Pub Date : 2024-01-08 DOI: 10.1007/s43673-023-00112-4
Zhi-Gang Wang, Xiao-Song Yang
{"title":"The two-body strong decays of the fully-charm tetraquark states","authors":"Zhi-Gang Wang,&nbsp;Xiao-Song Yang","doi":"10.1007/s43673-023-00112-4","DOIUrl":"10.1007/s43673-023-00112-4","url":null,"abstract":"<div><p>We study the hadronic coupling constants in the two-body strong decays of the fully-charm tetraquark states with the <span>(J^{PC}=0^{++})</span>, <span>(1^{+-})</span>, and <span>(2^{++})</span> via the QCD sum rules based on rigorous quark-hadron duality. Then we obtain the hadronic coupling constants and partial decay widths therefore total decay widths, which support assigning the <i>X</i>(6552) as the first radial excitation of the scalar tetraquark state. And other predictions can be used to diagnose exotic states in the future.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00112-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cosmological gravitational waves from isocurvature fluctuations 等曲率波动产生的宇宙学引力波
AAPPS Bulletin Pub Date : 2024-01-06 DOI: 10.1007/s43673-023-00109-z
Guillem Domènech
{"title":"Cosmological gravitational waves from isocurvature fluctuations","authors":"Guillem Domènech","doi":"10.1007/s43673-023-00109-z","DOIUrl":"10.1007/s43673-023-00109-z","url":null,"abstract":"<div><p>Gravitational waves induced by large primordial curvature fluctuations may result in a sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are gradually generated by initial isocurvature fluctuations, which in turn induce gravitational waves. Initial isocurvature fluctuations commonly appear in multi-field models of inflation as well as in the formation of scattered compact objects in the very early universe, such as primordial black holes and solitons like oscillons and cosmic strings. Here, we provide a review on isocurvature induced gravitational waves and its applications to dark matter and the primordial black hole dominated early universe.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00109-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142410191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flat bands, sharp physics 平带、锐利物理
AAPPS Bulletin Pub Date : 2024-01-02 DOI: 10.1007/s43673-023-00113-3
Daniel Leykam
{"title":"Flat bands, sharp physics","authors":"Daniel Leykam","doi":"10.1007/s43673-023-00113-3","DOIUrl":"10.1007/s43673-023-00113-3","url":null,"abstract":"<div><p>Flat bands arise in periodic media when symmetries or fine-tuning result in perfect wavepacket localisation. Flat band localisation is fragile and exhibits remarkably sharp sensitivity to perturbations including interactions and disorder, leading to a variety of interesting quantum and classical phenomena. Originally a theoretical curiosity, advances in fabrication methods have allowed flat band physics to be observed down to the nanoscale. This article briefly reviews progress in the study of flat bands and disorder over the past decade and provides an outlook on where this exciting field is headed.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00113-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139390238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phonon thermal transport in bilayer polycrystalline graphene nanoribbons: effects of interlayer interaction, grain size, and vacancy defects 双层多晶石墨烯纳米带中的声子热传输：层间相互作用、晶粒尺寸和空位缺陷的影响
AAPPS Bulletin Pub Date : 2024-01-02 DOI: 10.1007/s43673-023-00111-5
Zi-Qiang Yang, Muhammad Asif Shakoori, Hai-Peng Li
{"title":"Phonon thermal transport in bilayer polycrystalline graphene nanoribbons: effects of interlayer interaction, grain size, and vacancy defects","authors":"Zi-Qiang Yang,&nbsp;Muhammad Asif Shakoori,&nbsp;Hai-Peng Li","doi":"10.1007/s43673-023-00111-5","DOIUrl":"10.1007/s43673-023-00111-5","url":null,"abstract":"<div><p>In this paper, molecular dynamics simulations have been employed to investigate the phonon thermal transport in bilayer polycrystalline graphene nanoribbon (pGNR/pGNR), compared with bilayer graphene nanoribbon (GNR/GNR) and pGNR/GNR heterostructure. The interfacial thermal resistance (ITR) of bilayer structures was also calculated using the heat dissipation method. The effects of interlayer interaction, grain size, and vacancy defects on ITR and in-plane phonon thermal conductivity of bilayer structures were investigated. It was found that the ITR as well as in-plane phonon thermal conductivity of pGNR/pGNR wa<u>s</u> less than that of pGNR/GNR and much less than that of GNR/GNR, for the same size. For the studied bilayer structures, both the ITR and in-plane phonon thermal conductivity decrease with increasing interlayer interactions. Moreover, ITR increases with increasing grain area size whereas decreases with increasing vacancy defects in pGNR-based bilayers. The introduction of pGNR interface roughness and vacancy defects results in an enhanced phonon coupling in pGNR-based bilayers compared to pure GNR/GNR bilayers. Presented simulation investigations will help to understand the interlayer thermal transport properties of polycrystalline graphene and provide essential guidance for experimentally regulating phonon thermal transport between layers of polycrystalline graphene.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00111-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139390645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Collection of unconventional transport phenomena: natural obstacle or vibrant guiding principle for the design of molecular junctions? 收集非常规传输现象：设计分子连接的自然障碍还是充满活力的指导原则？
AAPPS Bulletin Pub Date : 2024-01-02 DOI: 10.1007/s43673-023-00110-6
Jinlong Ren, Tianchen Li, Zhuang Li, Decheng Kong, Guangcun Shan, KunPeng Dou
{"title":"Collection of unconventional transport phenomena: natural obstacle or vibrant guiding principle for the design of molecular junctions?","authors":"Jinlong Ren,&nbsp;Tianchen Li,&nbsp;Zhuang Li,&nbsp;Decheng Kong,&nbsp;Guangcun Shan,&nbsp;KunPeng Dou","doi":"10.1007/s43673-023-00110-6","DOIUrl":"10.1007/s43673-023-00110-6","url":null,"abstract":"<div><p>The real atomic scale details of molecular junctions would be of much complexity and can yield a plethora of “counterintuitive” results. Here, we provide an overview of four unconventional intentional or unintentional transport phenomena in molecular junctions, in particular, unconventional tunneling length-dependent transport behavior, deviation from Kirchhoff’s superposition law, dual roles of imperfect engineering, and masked quantum interference. These abnormal phenomena are not engaged in a dead end. On the contrary, it offers plenty of research opportunities in molecular electronics.</p></div>","PeriodicalId":100007,"journal":{"name":"AAPPS Bulletin","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s43673-023-00110-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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