Pub Date : 2026-01-20DOI: 10.1080/00018732.2025.2610595
Chao Hang, Guoxiang Huang
{"title":"Parity-time symmetry with coherent atomic gases: a concise review on recent progress","authors":"Chao Hang, Guoxiang Huang","doi":"10.1080/00018732.2025.2610595","DOIUrl":"https://doi.org/10.1080/00018732.2025.2610595","url":null,"abstract":"","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146005771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-18DOI: 10.1080/00018732.2025.2600658
Yves H. Kwan, Ziwei Wang, Glenn Wagner, Nick Bultinck, Steven H. Simon, Siddharth A. Parameswaran
We review the theoretical modeling of moiré materials, focusing on various aspects of magic-angle twisted bilayer graphene (MA-TBG) viewed through the lens of Hartree–Fock mean-field theory. We first provide an elementary introduction to the continuum modeling of moiré bandstructures, and explain how interactions are incorporated to study correlated states. We then discuss how to implement mean-field simulations of ground state structure and collective excitations in this setting. With this background established, we rationalize the power of mean-field approximations in MA-TBG, by discussing the idealized ‘chiral-flat’ strong-coupling limit, in which ground states at electron densities commensurate with the moiré superlattice are exactly captured by mean-field ansätze. We then illustrate the phenomenological shortcomings of this limit, leading us naturally into a discussion of the intermediate-coupling incommensurate Kekulé spiral (IKS) order and its origins in ever-present heterostrain. IKS and its placement within an expanded Hartree–Fock manifold form our first ‘case study’. Our second case study involves time-dependence, and focuses on the collective modes of various broken-symmetry insulators in MA-TBG. As a third and final case study, we return to the strong-coupling picture, which can be stabilized by aligning MA-TBG to an hBN substrate. In this limit, we show how mean field theory can be adapted to the translationally non-invariant setting in order to quantitatively study the energetics of domain walls in orbital Chern insulating states. We close with a discussion of extensions and further applications. Used either as a standalone reference or alongside the accompanying open-source code, this review should enable readers with a basic knowledge of band theory and many-body physics to systematically build and analyze detailed models of generic moiré systems.
{"title":"Mean-field modeling of moiré materials: a user's guide with selected applications to twisted bilayer graphene","authors":"Yves H. Kwan, Ziwei Wang, Glenn Wagner, Nick Bultinck, Steven H. Simon, Siddharth A. Parameswaran","doi":"10.1080/00018732.2025.2600658","DOIUrl":"https://doi.org/10.1080/00018732.2025.2600658","url":null,"abstract":"We review the theoretical modeling of moiré materials, focusing on various aspects of magic-angle twisted bilayer graphene (MA-TBG) viewed through the lens of Hartree–Fock mean-field theory. We first provide an elementary introduction to the continuum modeling of moiré bandstructures, and explain how interactions are incorporated to study correlated states. We then discuss how to implement mean-field simulations of ground state structure and collective excitations in this setting. With this background established, we rationalize the power of mean-field approximations in MA-TBG, by discussing the idealized ‘chiral-flat’ strong-coupling limit, in which ground states at electron densities commensurate with the moiré superlattice are <i>exactly</i> captured by mean-field <i>ansätze</i>. We then illustrate the phenomenological shortcomings of this limit, leading us naturally into a discussion of the intermediate-coupling incommensurate Kekulé spiral (IKS) order and its origins in ever-present heterostrain. IKS and its placement within an expanded Hartree–Fock manifold form our first ‘case study’. Our second case study involves time-dependence, and focuses on the collective modes of various broken-symmetry insulators in MA-TBG. As a third and final case study, we return to the strong-coupling picture, which can be stabilized by aligning MA-TBG to an hBN substrate. In this limit, we show how mean field theory can be adapted to the translationally non-invariant setting in order to quantitatively study the energetics of domain walls in orbital Chern insulating states. We close with a discussion of extensions and further applications. Used either as a standalone reference or alongside the accompanying open-source code, this review should enable readers with a basic knowledge of band theory and many-body physics to systematically build and analyze detailed models of generic moiré systems.","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145801172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-04DOI: 10.1080/00018732.2025.2598130
M. F. Ciappina
{"title":"Solid-state high-order harmonic generation: emerging frontiers in ultrafast and quantum light science","authors":"M. F. Ciappina","doi":"10.1080/00018732.2025.2598130","DOIUrl":"https://doi.org/10.1080/00018732.2025.2598130","url":null,"abstract":"","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145680051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1080/00018732.2025.2580807
Paolo Radaelli, Nigel Balmforth
{"title":"A new dawn for Advances in Physics","authors":"Paolo Radaelli, Nigel Balmforth","doi":"10.1080/00018732.2025.2580807","DOIUrl":"https://doi.org/10.1080/00018732.2025.2580807","url":null,"abstract":"","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"135 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145645161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-14DOI: 10.1080/00018732.2025.2586343
Boris Malomed
A briefly formulated update of the recently published review [B.A. Malomed, Multidimensional soliton systems. Adv. Phys. 9(1) (2024), pp. 2301592] on the topic of multidimensional solitons (chiefly, in nonlinear optics and atomic Bose–Einstein condensates (BECs)) is presented. The update briefly summarizes some notable results on this topic that have been reported very recently, and offers a compact outline of the directions of the current experiment and theoretical work in this and related fields. In particular, as concerns newest experimental findings, included are the creation of multiple quantum droplets in prolate BEC, and the observation of expanding toroidal light structures in linear optics. The update of theoretical results includes the analysis of 2D solitons in the optical system with the quadratic nonlinearity and fractional diffraction, and the prediction of stable 3D vortex solitons in various BEC schemes with long-range interactions.
{"title":"Multidimensional soliton systems: an update","authors":"Boris Malomed","doi":"10.1080/00018732.2025.2586343","DOIUrl":"https://doi.org/10.1080/00018732.2025.2586343","url":null,"abstract":"A briefly formulated update of the recently published review [B.A. Malomed, <i>Multidimensional soliton systems</i>. Adv. Phys. 9(1) (2024), pp. 2301592] on the topic of multidimensional solitons (chiefly, in nonlinear optics and atomic Bose–Einstein condensates (BECs)) is presented. The update briefly summarizes some notable results on this topic that have been reported very recently, and offers a compact outline of the directions of the current experiment and theoretical work in this and related fields. In particular, as concerns newest experimental findings, included are the creation of multiple <i>quantum droplets</i> in prolate BEC, and the observation of expanding toroidal light structures in linear optics. The update of theoretical results includes the analysis of 2D solitons in the optical system with the quadratic nonlinearity and <i>fractional diffraction</i>, and the prediction of stable 3D <i>vortex solitons</i> in various BEC schemes with long-range interactions.","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145536098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-06DOI: 10.1080/00018732.2025.2580840
Leticia F. Cugliandolo
{"title":"Introduction to Langevin stochastic processes","authors":"Leticia F. Cugliandolo","doi":"10.1080/00018732.2025.2580840","DOIUrl":"https://doi.org/10.1080/00018732.2025.2580840","url":null,"abstract":"","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145455167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-11-04DOI: 10.1080/00018732.2024.2369389
Jan Zaanen
These notes are based on lectures serving the advanced graduate education of the Delta Institute of Theoretical Physics in the Netherlands in autumn 2021. The goal is to explain in a language that ...
{"title":"Lectures on quantum supreme matter","authors":"Jan Zaanen","doi":"10.1080/00018732.2024.2369389","DOIUrl":"https://doi.org/10.1080/00018732.2024.2369389","url":null,"abstract":"These notes are based on lectures serving the advanced graduate education of the Delta Institute of Theoretical Physics in the Netherlands in autumn 2021. The goal is to explain in a language that ...","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-18DOI: 10.1080/00018732.2024.2407708
Paolo G. Radaelli
In September 2022 Joerg Schmalian (then co-Editor in Chief for Advances in Physics) made an interesting proposal: he has seen on ArXiv a manuscript by Jan Zaanen, containing what Joerg described as...
{"title":"Jan Zaanen – In memoriam","authors":"Paolo G. Radaelli","doi":"10.1080/00018732.2024.2407708","DOIUrl":"https://doi.org/10.1080/00018732.2024.2407708","url":null,"abstract":"In September 2022 Joerg Schmalian (then co-Editor in Chief for Advances in Physics) made an interesting proposal: he has seen on ArXiv a manuscript by Jan Zaanen, containing what Joerg described as...","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-10-15DOI: 10.1080/00018732.2024.2413342
Ryosuke Kadono, Hideo Hosono
Despite being the simplest element, hydrogen (H) exhibits complex behavior in materials due to its unique ambipolar character. In particular, it is recognized as one of the most important impurities in semiconductor physics, because H is often unintentionally incorporated into materials and significantly influences the electrical properties of the host material. One of the few means that have been applied to obtain experimental information about the local electronic state of diluted H is the use of muon (Mu) as pseudo-H. Here, we present an overview on the “ambipolarity model” that provides a new paradigm for the microscopic understanding of Mu-related defects. Its essence lies in the fact that the information Mu yields is not about the equilibrium double-charge transition level () but about the donor/acceptor levels ( and ) associated with the relaxed-excited states of Mu. Most notably, the model resolves serious discrepancies between the implications from implanted-Mu studies and theoretical predictions on the electronic state of H from ab initio density functional theory calculations in oxide semiconductors that have hindered the coherent integration of both Mu and H knowledge. The model also suggests that hydride state (H) plays important roles in oxide materials, as found in a variety of recent examples. Based on these successes, the model is currently serving as a reliable guide for the interpretation of various Mu states observed in other insulating materials, for which several recent examples are presented.
尽管氢（H）是最简单的元素，但由于其独特的两极特性，它在材料中表现出复杂的行为。特别是，它被认为是半导体物理学中最重要的杂质之一，因为氢经常被无意地掺入材料中，并显著影响主材料的电学特性。利用μ介子（Mu）作为伪氢气，是获得稀释氢气局部电子态实验信息的少数方法之一。在此，我们概述了 "安培极性模型"，它为从微观上理解与μ介子有关的缺陷提供了一种新的范式。其本质在于，Mu 所产生的信息不是关于平衡双电荷转换电平（E+/-），而是关于与 Mu 的弛豫激发态相关的供体/受体电平（E0/- 和 E+/-0）。最值得注意的是，该模型解决了植入式 Mu 研究与氧化物半导体中原子密度泛函理论计算对 H 电子状态的理论预测之间的严重差异，这些差异阻碍了 Mu 和 H 知识的协调整合。该模型还表明，氢化物态（H-）在氧化物材料中发挥着重要作用，这在最近的各种实例中都有发现。基于这些成功经验，该模型目前已成为解释在其他绝缘材料中观察到的各种 Mu 状态的可靠指南，并介绍了最近的几个实例。
{"title":"Ambipolarity of hydrogen in matter revealed by muons","authors":"Ryosuke Kadono, Hideo Hosono","doi":"10.1080/00018732.2024.2413342","DOIUrl":"https://doi.org/10.1080/00018732.2024.2413342","url":null,"abstract":"Despite being the simplest element, hydrogen (H) exhibits complex behavior in materials due to its unique ambipolar character. In particular, it is recognized as one of the most important impurities in semiconductor physics, because H is often unintentionally incorporated into materials and significantly influences the electrical properties of the host material. One of the few means that have been applied to obtain experimental information about the local electronic state of diluted H is the use of muon (Mu) as pseudo-H. Here, we present an overview on the “ambipolarity model” that provides a new paradigm for the microscopic understanding of Mu-related defects. Its essence lies in the fact that the information Mu yields is not about the equilibrium double-charge transition level (<span><img alt=\"\" data-formula-source='{\"type\":\"image\",\"src\":\"/cms/asset/4fb9b511-84f4-4430-881c-e82bd3c5949c/tadp_a_2413342_ilm0001.gif\"}' src=\"//:0\"/></span><span><img alt=\"\" data-formula-source='{\"type\":\"mathjax\"}' src=\"//:0\"/><math><msup><mi>E</mi><mrow><mo>+</mo><mrow><mo>/</mo></mrow><mo>−</mo></mrow></msup></math></span>) but about the donor/acceptor levels (<span><img alt=\"\" data-formula-source='{\"type\":\"image\",\"src\":\"/cms/asset/966dd945-1120-4423-b15c-bd6c6842ed2c/tadp_a_2413342_ilm0002.gif\"}' src=\"//:0\"/></span><span><img alt=\"\" data-formula-source='{\"type\":\"mathjax\"}' src=\"//:0\"/><math><msup><mi>E</mi><mrow><mn>0</mn><mrow><mo>/</mo></mrow><mo>−</mo></mrow></msup></math></span> and <span><img alt=\"\" data-formula-source='{\"type\":\"image\",\"src\":\"/cms/asset/6566842e-e530-4827-8e46-e67008aa1fec/tadp_a_2413342_ilm0003.gif\"}' src=\"//:0\"/></span><span><img alt=\"\" data-formula-source='{\"type\":\"mathjax\"}' src=\"//:0\"/><math><msup><mi>E</mi><mrow><mo>+</mo><mrow><mo>/</mo></mrow><mo>−</mo><mn>0</mn></mrow></msup></math></span>) associated with the relaxed-excited states of Mu. Most notably, the model resolves serious discrepancies between the implications from implanted-Mu studies and theoretical predictions on the electronic state of H from <i>ab initio</i> density functional theory calculations in oxide semiconductors that have hindered the coherent integration of both Mu and H knowledge. The model also suggests that hydride state (H<span><img alt=\"\" data-formula-source='{\"type\":\"image\",\"src\":\"/cms/asset/06746f1c-06f4-4df6-ba2f-b1ebaac78308/tadp_a_2413342_ilm0004.gif\"}' src=\"//:0\"/></span><span><img alt=\"\" data-formula-source='{\"type\":\"mathjax\"}' src=\"//:0\"/><math><msup><mrow></mrow><mo>−</mo></msup></math></span>) plays important roles in oxide materials, as found in a variety of recent examples. Based on these successes, the model is currently serving as a reliable guide for the interpretation of various Mu states observed in other insulating materials, for which several recent examples are presented.","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-22DOI: 10.1080/00018732.2024.2317494
Édgar Roldán, Izaak Neri, Raphael Chetrite, Shamik Gupta, Simone Pigolotti, Frank Jülicher, Ken Sekimoto
We review the theory of martingales as applied to stochastic thermodynamics and stochastic processes in physics more generally.
我们回顾了应用于随机热力学和物理学随机过程的马氏理论。
{"title":"Martingales for physicists: a treatise on stochastic thermodynamics and beyond","authors":"Édgar Roldán, Izaak Neri, Raphael Chetrite, Shamik Gupta, Simone Pigolotti, Frank Jülicher, Ken Sekimoto","doi":"10.1080/00018732.2024.2317494","DOIUrl":"https://doi.org/10.1080/00018732.2024.2317494","url":null,"abstract":"We review the theory of martingales as applied to stochastic thermodynamics and stochastic processes in physics more generally.","PeriodicalId":7373,"journal":{"name":"Advances in Physics","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141098002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：