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報(bào)告人：王寧，廣西師范大學(xué)

時(shí)間：12月30日（周二）10:00

單位：中國(guó)科學(xué)院理論物理研究所

地點(diǎn)：南樓6520

摘要:

本報(bào)告圍繞超重核在預(yù)形成與自發(fā)裂變過(guò)程中的結(jié)構(gòu)效應(yīng)展開(kāi)，系統(tǒng)探討了超重元素合成的意義、路徑及其關(guān)鍵科學(xué)問(wèn)題。針對(duì)熔合蒸發(fā)途徑，報(bào)告深入探討TDHF、ImQMD等模型對(duì)俘獲過(guò)程的動(dòng)力學(xué)模擬，以及通用Wong公式、EBD2公式等俘獲截面的計(jì)算方法。研究指出，原子核基態(tài)形變、反應(yīng)Q值、殼效應(yīng)、正Q值中子轉(zhuǎn)移等因素均對(duì)壘下俘獲截面具有重要影響，而深度非彈性散射在合成119號(hào)及以上超重核時(shí)的影響亦不可忽視。報(bào)告進(jìn)一步討論了原子核自發(fā)裂變過(guò)程中的有效隧穿壘（ETB），比較了不同模型對(duì)自發(fā)裂變半衰期的預(yù)測(cè)能力，并指出殼能隙以及衰變能對(duì)豐質(zhì)子超重核自發(fā)裂變的關(guān)鍵作用。

報(bào)告人簡(jiǎn)介:

王寧，廣西師范大學(xué)教授、廣西核物理與核技術(shù)重點(diǎn)實(shí)驗(yàn)室主任、國(guó)家自然科學(xué)基金優(yōu)秀青年基金獲得者。主要從事重離子熔合反應(yīng)、原子核質(zhì)量等研究。提出了一個(gè)高精度的核質(zhì)量模型，得到了同行的廣泛關(guān)注與好評(píng)；還提出了重離子熔合反應(yīng)截面的通用Wong公式以及改進(jìn)的量子分子動(dòng)力學(xué)模型，為實(shí)驗(yàn)合成新核素以及探索熔合機(jī)制提供了重要的理論支撐。

2

報(bào)告人：王志偉，University of York

時(shí)間：12月30日（周二）14:00

單位：中國(guó)科學(xué)院理論物理研究所

地點(diǎn)：Lecture Hall 6620, South Building

Zoom Meeting ID: 844 0034 0762

Passcode: 727537

摘要:

In the framework of General Relativity,?the definition and interpretation of energy (mass) remains one of its most profound and enduring challenges. Two of the most widely recognized definitions are the ADM mass and the Komar mass: the ADM mass is defined based on the Hamiltonian principle,?while the Komar mass is constructed via Noether's principle. Although their definitional phylosophy are distinct,?they have been proven to be completely equivalent in stationary,asymptotically flat spacetimes. However, their specific relationship in dynamic spacetimes has remained unclear for fifty years. Our research focuses on the correlation between ADM energy and generalized Komar mass within asymptotically flat dynamic spacetimes. We demonstrate that a generalized Komar energy, constructed using an appropriately chosen asymptotic timelike vector field, is exactly equivalent to the ADM energy. This result extends the equivalence of ADM and Komar energy to more general dynamic scenarios, providing a powerful analytical tool for addressing energy problems in dynamic spacetimes involving compact objects (such as black holes).

報(bào)告人簡(jiǎn)介:

Zhiwei Wang is a Postdoctoral Researcher at the University of York, UK. He received his PhD from the University of York in August 2020. Subsequently, he conducted postdoctoral research at the University of Lethbridge (Canada), the University of Warwick (UK), and the University of York (UK). His research primarily focuses on theoretical work regarding black hole thermodynamics, dynamic spacetimes, and quantum gravity phenomena. His relevant research results have been published as the first author in journals such as Nature Astronomy, Nature Communications,?and Physical Review D.

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報(bào)告人：肖煌煜，波士頓大學(xué)&哈佛大學(xué)

時(shí)間：12月30日（周二）15:00

單位：中國(guó)科學(xué)院理論物理研究所

地點(diǎn)：南樓6420

摘要:

I will discuss cosmological aspects of the QCD axion and more general axion-like particles. I will then show how axions can play a key role in well-motivated baryogenesis frameworks, strengthening their motivation beyond the strong CP problem. Next, I will introduce a simple axion–monopole model in which the axion dynamics induces an effective interaction between dark matter and dark energy. I will close with recent developments in cosmological signals of axion dark matter and prospects for future detection.

報(bào)告人簡(jiǎn)介:

Huangyu Xiao obtained his PhD from the University of Washington in 2022. Then he moved to Fermilab and U chicago for his first postdoc, and recently joined Boston University and Harvard University in 2025 for his second postdoc. His recent research interests include cosmological probes of axions and particle physics model building to explain the origin of baryon asymmetry.

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報(bào)告人：張玉波，閩江學(xué)院

時(shí)間：12月31日（周三）10:00

單位：中國(guó)科學(xué)院物理研究所

地點(diǎn): M830

摘要:

過(guò)渡金屬化合物因其d電子的關(guān)聯(lián)特性，常展現(xiàn)出奇異物理性質(zhì)，這對(duì)廣泛應(yīng)用的Kohn-Sham密度泛函理論構(gòu)成了挑戰(zhàn)。傳統(tǒng)LDA/GGA泛函在預(yù)測(cè)此類材料性質(zhì)時(shí)存在較大偏差，導(dǎo)致學(xué)界對(duì)DFT方法的可靠性存在廣泛質(zhì)疑。近年來(lái)，SCAN meta-GGA泛函及其改進(jìn)版本r2SCAN取得重要突破，對(duì)過(guò)渡金屬化合物的物性預(yù)測(cè)有了顯著進(jìn)步，促使人們重新審視DFT在過(guò)渡金屬化合物中的適用性。本報(bào)告將介紹SCAN/r2SCAN泛函的基本原理，重點(diǎn)闡述它們?cè)谌舾蛇^(guò)渡金屬化合物研究中的進(jìn)展及性能提升機(jī)制，并探討當(dāng)前依然存在的挑戰(zhàn)。

報(bào)告人簡(jiǎn)介:

張玉波博士，2006年本科畢業(yè)于山東大學(xué)，2012年獲得哈爾濱工業(yè)大學(xué)物理學(xué)博士學(xué)位。張博士先后在中國(guó)科學(xué)院上海硅酸鹽研究所、美國(guó)杜蘭大學(xué)孫建威/John Perdew教授團(tuán)隊(duì)從事博士后研究工作。2018年回國(guó)加入南方科技大學(xué)張文清教授團(tuán)隊(duì)，擔(dān)任研究副教授。2022年入職閩江學(xué)院開(kāi)展獨(dú)立研究。張博士致力于復(fù)雜磁性材料的密度泛函理論研究。已發(fā)表論文69篇，H指數(shù)31，被引6000余次。

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報(bào)告人：陳璟怡，南京信息工程大學(xué)

時(shí)間：12月31日（周三）10:00

單位：北京大學(xué)物理學(xué)院

地點(diǎn)：物理大樓北547教室

騰訊會(huì)議：385-355-782

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報(bào)告人：張東良，馬克斯-普朗克復(fù)雜系統(tǒng)物理研究所

時(shí)間：12月31日（周三）10:30

單位：中國(guó)科學(xué)院理論物理研究所

地點(diǎn)：南樓6620

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報(bào)告人：Bartosz Pyszkowski，YITP, Kyoto University

時(shí)間：1月5日（周一）10:00

單位：中國(guó)科學(xué)院理論物理研究所

Zoom Meeting Meeting ID: 893 1198 4573

Passcode: 008904

摘要:

Following Polchinski and Strassler arXiv:hep-th/0109174 and our recent work arXiv:hep-th/2412.17784, I will discuss our ongoing study of high-energy pion scattering in a holographic hard-wall model of QCD. I will begin with a brief overview of the Polchinski--Strassler proposal before applying it to the holographic hard-wall model. The main focus is on comparing our predictions for the angular dependence of $\pi^{+} \pi^{-} \to \pi^{+} \pi^{-}$ scattering with experimental data. Having previously shown that our approach reproduces the constituent counting rule in QCD, we now find qualitative agreement with data in the high-energy fixed-angle regime. Time permitting, I will also comment on possible extensions to other processes and models, and attempts to ``prove'' the Polchinski--Strassler proposal.

報(bào)告人簡(jiǎn)介:

Bartosz Pyszkowski is currently a Ph.D student of YITP at Kyoto University since 2022,before that,he obtained his master degree from Durham University in 2021 after he graduated from Warwick University in 2020. His research focuses mainly on holographic QCD and related aspects of holography.

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