Reviews in Physics最新文献

{"title":"Subharmonic oscillations in the Floquet circuit with the frequency-synthesis dimension","authors":"Bo Lv ,&nbsp;Shiyun Xia ,&nbsp;Ye Tian ,&nbsp;Ting Liu ,&nbsp;Hongyang Mu ,&nbsp;Zhichao Shen ,&nbsp;Sijie Wang ,&nbsp;Zheng Zhu ,&nbsp;Huibin Tao ,&nbsp;Fanyi Meng ,&nbsp;Jinhui Shi","doi":"10.1016/j.revip.2025.100105","DOIUrl":"10.1016/j.revip.2025.100105","url":null,"abstract":"<div><div>The period-doubling oscillation emerges due to the coexistence of zero and π modes in Floquet topological insulators (FTIs). Here, leveraging the flexibility of the electric circuit, we construct a circuit with frequency-synthetic dimension to realize the FTIs of a periodically-driven model and demonstrate the topological edge states of zero and π modes. In contrast to the period-doubling oscillations observed in FTIs, the circuit exhibits deeply-subharmonic oscillations with periods extensively exceeding the doubling-driven period. Furthermore, we explore the band of the circuit with the equivalent-enhanced periodically-driven strength. Our method provides a flexible scheme to study Floquet topological phases, and open a new path for realizing the deeply subwavelength system.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100105"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143097078","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}

{"title":"From theory to practice: Floquet-Magnus and Fer expansions in triple oscillating field NMR","authors":"Eugene Stephane Mananga","doi":"10.1016/j.revip.2025.100109","DOIUrl":"10.1016/j.revip.2025.100109","url":null,"abstract":"<div><div>The Floquet-Magnus expansion (FME) and Fer expansion (FE) schemes were introduced in solid-state nuclear magnetic resonance (NMR) in 2011 and 2006, respectively. Key features of the Floquet-Magnus expansion are its ability to account for the calculations developed in a finite-dimensional Hilbert space instead of an infinite-dimensional space within the Floquet theory as well as its use of its distinguishable function, <span><math><mrow><msub><mstyle><mi>Λ</mi></mstyle><mi>n</mi></msub><mrow><mo>(</mo><mi>t</mi><mo>)</mo></mrow><mo>,</mo><mspace></mspace><mi>n</mi><mo>=</mo><mn>1</mn><mo>,</mo><mspace></mspace><mn>2</mn><mo>,</mo><mspace></mspace><mn>3</mn><mo>,</mo><mspace></mspace><mi>…</mi></mrow></math></span>, not available in other concurrent theories such as average Hamiltonian theory, Floquet theory, and Fer expansion. The distinguishable function facilitates the evaluation of the spin behavior in between the stroboscopic observation points. This paper provides an in-depth analysis of both the FME and FE methods and integrates them with the Triple Oscillating Field Technique (TOFU) in solid-state NMR. This is a significant and novel contribution as it presents a unified framework for explaining spin dynamics. The use of both FME and FE provides new theoretical insights and extends the applicability of these methods beyond traditional approaches. The application to the TOFU technique, which circumvents the dipolar truncation problem, indicates substantial practical implications for distance measurement in solid-state NMR, a critical aspect of molecular structure determination. We take advantage of the interaction frequencies and the time modulation arising from the TOFU pulse sequence, which allows selective recoupling of specific terms in the Hamiltonian that fulfill determined specific conditions. The work presented unifies and generalizes the results of the FME and FE and delivers illustrations of novel insights that boost previous applications that are based on the classical information. We believe that the revisited approaches in this work and the derived expressions can serve as useful information and numerical tools for time evolution in spin dynamics, time-resolved spectroscopy, quantum control, and quantum dynamics[<span><span>81</span></span>,<span><span>82</span></span>].</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100109"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143350846","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}

{"title":"Harmonic driving and dynamic transitions in the Landau–Zener–Stückelberg–Majorana interferometry induced by tunneling flux-driven symmetric transmon qubits","authors":"S.L. Dongmo Tedo ,&nbsp;O.C. Feulefack ,&nbsp;J.E. Danga ,&nbsp;S.E. Mkam Tchouobiap ,&nbsp;R.M. Keumo Tsiaze ,&nbsp;A.J. Fotue ,&nbsp;M.N. Hounkonnou ,&nbsp;L.C. Fai","doi":"10.1016/j.revip.2025.100118","DOIUrl":"10.1016/j.revip.2025.100118","url":null,"abstract":"<div><div>In this study, Landau–Zener–Stückelberg–Majorana (LZSM) dynamics of tunneling transmon quantum bits (qubits) and related interference effects (interferometry) in symmetrical Josephson junctions (JJs) are theoretically investigated. Accordingly, the deviation of the driving parameters from the symmetry point and the transmon frequency are introduced, leading to fluctuations of a superconducting gap that limit the computational power of state-of-the-art transmon qubits and micro-processors. Indeed, the theoretical approach is carried withing the framework of the dynamic matrix approach (DMA) and numerical experiment measurements are reported after both single and double passages through a complexity of the transmon qubit polarization energy. Therefore, we derive generalized analytical expressions of LZSM quantum tunneling probabilities (QTP) and energy eigenvalues for multiple passages processes, which allow us to efficiently establish the transmon frequency and determine the driving parameters. Our theoretical results seem relevant for the interpretation of several LZSM interferometry mechanisms in the modulation of superconducting gap through different transmon qubit spectroscopy experiments in which tunable LZSM transitions and quantum interference patterns are demonstrated by the use of universal nonadiabatic control to implement quantum emulations. Additionally, this mapping enables the investigation of JJ effects through the identification of the corresponding modulated topological phases accumulated during the LZSM transitions, which offer new opportunities to coherently manipulate qubit states and address the energy transfer of transmon qubits on the one hand. On the other hand, it suggests possibilities to reduce sensitivity and to suspected sources of imperfection from different superconducting qubit architectures, particularly in the context of materials optimization strategies that dig out nontrivial phenomena possessing powerful quantum interferometer functionality with realistic quantum controls of tunneling transmon qubit states.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143911570","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}

{"title":"Is a quantum gravity era necessary?","authors":"Bogdan Veklych","doi":"10.1016/j.revip.2025.100116","DOIUrl":"10.1016/j.revip.2025.100116","url":null,"abstract":"<div><div>We present the first published framework of the entirety of cosmological history which is thoroughly classical (without any quantum-gravitational era or singularities) and which passes all the known extensive consistency checks. Some of its possible cosmological implications are discussed, such as its ability to account for the matter-antimatter asymmetry, dark flow, and the Hubble tension, albeit at the cost of further assumptions.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100116"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134573","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}

{"title":"Topological photonics: Frontiers in robust light manipulation","authors":"Yongliang Zhang ,&nbsp;Wei E.I. Sha ,&nbsp;Igor Tsukerman","doi":"10.1016/j.revip.2025.100119","DOIUrl":"10.1016/j.revip.2025.100119","url":null,"abstract":"","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134574","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}

{"title":"Dielectric behavior of manganese doped aluminum iron oxide and possibility of use in magnetoelectric sensing and dielectric heating devices for medical related research","authors":"M.Z. Ahsan ,&nbsp;Tanzina Tabassum","doi":"10.1016/j.revip.2025.100101","DOIUrl":"10.1016/j.revip.2025.100101","url":null,"abstract":"<div><div>This paper reports on the dielectric properties of undoped and manganese doped aluminum iron oxide. The solid state reaction method was used to synthesis the samples. The dieletic function was measured over the frequency band 1kHz–10 MHz at room temperature. The real part of dielectric function shows the material in ferrimagnetic/ferromagnetic order. The negative value of imaginary part of dielectric function near Fabry–Perot resonance is found to be correlated with the magnetoelectric coupling. This magnetoelectric couping effect produces a transformation between magnetic energy and electric energy. The dispersion of imaginary part of electric modulus shows two relaxation time constant for undoped aluminum iron oxide and one relaxation time constant for manganese doped aluminum iron oxide. This effect of managanese doping and transformation of electric and magnetic energy near the Fabry–Perot resonance in aluminum iron oxide may be proclaimed as the novelty of this study.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100101"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141151","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}

{"title":"Topological defects and higher Chern number two-band structures on checkerboard lattice","authors":"Zhi-Wen Chang ,&nbsp;Wei-Chang Hao ,&nbsp;Xin Liu","doi":"10.1016/j.revip.2025.100113","DOIUrl":"10.1016/j.revip.2025.100113","url":null,"abstract":"<div><div>In this paper, we focus on studying the meron defects on checkerboard lattice based on two-band structures. Merons are two-dimensional point defects, whose topological charges give the evaluations of the Chern numbers of the two bands. We first reproduce the results of a previous model from the defect perspective. Then, the model is extended to attain the higher Chern number systems. We show that the model can achieve <span><math><mrow><mi>C</mi><mo>=</mo><mo>±</mo><mn>3</mn></mrow></math></span> structures through analyzing the charges of the merons. The energy spectrum also reveals that three gap-closed states appear on the edges.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100113"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580488","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}

{"title":"Topological trivial and nontrivial properties in electromagnetic metamaterials","authors":"Wenjun Cai ,&nbsp;Zidong Zhang ,&nbsp;Weichang Hao","doi":"10.1016/j.revip.2025.100104","DOIUrl":"10.1016/j.revip.2025.100104","url":null,"abstract":"<div><div>The review explores topologically trivial and nontrivial properties in electromagnetic metamaterials, focusing on their design principles and applications. Electromagnetic metamaterials, known for their ability to manipulate electromagnetic waves through artificial structures, have significantly advanced due to topological concepts. Topologically trivial metamaterials rely on traditional unit structures like resonators, employing geometric patterns to achieve desired wave control, such as absorption and polarization. In contrast, topologically nontrivial metamaterials utilize periodic arrangement and unique unit cells, leading to robust edge states and waveguiding properties protected against defects. Recent developments, including Möbius strip-inspired designs, demonstrate how these topological effects enhance electromagnetic functionality. The review emphasizes that the fusion of topology with metamaterials opens avenues for advanced applications in optics, communications, and quantum computing unlock new functionalities in various technological fields.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100104"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143141152","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}

{"title":"Van der Waals metasurfaces molding topological polaritons","authors":"Seokwoo Kim ,&nbsp;Yeongtae Jang ,&nbsp;Doohyuk Han ,&nbsp;Jihae Lee ,&nbsp;Junsuk Rho","doi":"10.1016/j.revip.2025.100115","DOIUrl":"10.1016/j.revip.2025.100115","url":null,"abstract":"<div><div>Polaritons, formed through the strong coupling of photons with excitations such as phonons or excitons, offer powerful tools for manipulating light at subwavelength scales. Van der Waals materials, like hexagonal boron nitride (hBN) and other transition metal dichalcogenides (TMDs), present unique opportunities for controlling polaritonic modes due to their atomically thin structures and tunable optical properties. Specifically, hyperbolic polaritons in hBN enable extreme light confinement and canalization in the mid-infrared spectral range, while exciton-polaritons in TMDs exhibit strong nonlinear responses in the visible and near-infrared domains. Integrating van der Waals materials with metasurface—a tailored array of subwavelength scatterers—enables the creation of topologically protected polaritonic states, allowing unidirectional, scattering-resistant propagation. This review provides a brief review of the rapidly advancing field of topological polaritonics in van der Waals metasurfaces, covering not only topological polaritonic insulators but also hyperbolic polaritons exhibiting topological transition in their dispersion contour.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100115"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738231","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}

{"title":"Second-order nonlocal shifts of scattered wave-packets: What can be measured by Goos–Hänchen and Imbert–Fedorov effects?","authors":"Klaus Morawetz","doi":"10.1016/j.revip.2024.100097","DOIUrl":"10.1016/j.revip.2024.100097","url":null,"abstract":"<div><div>The scattering of wavepackets with arbitrary energy dispersion on surfaces has been analyzed. Expanding up to second order in scattering shifts, it is found that besides the known Goos–Hänchen or Imbert–Fedorov spatial offset, as well as the Wigner delay time, new momentum and frequency shifts appear. Furthermore, the width of the scattered wave packet becomes modified as well, which can lead to a shrinking of pulses by multiple scattering. For a model of dielectric material characterized by a longitudinal and transverse dielectric function the shifts are calculated analytically. From the Goos–Hänchen and Imbert–Fedorov shifts one can access the longitudinal and transversal dielectric function. Perfectly aligned crystal symmetry axes with respect to scattering beam shows no Imbert–Fedorov effect. It is found that the Goos–Hänchen and Imbert–Fedorov effect are absent for homogeneous materials. Oppositely it is found that the Wigner delay time and the shrinking of the temporal pulse width allows to access the dielectric function independent on the beam geometry.</div></div>","PeriodicalId":37875,"journal":{"name":"Reviews in Physics","volume":"13 ","pages":"Article 100097"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723041","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}