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Progress in Physics    2014, 34 (2): 47-117.   Abstract （296）      PDF （9236KB）（2516）       Related Articles | Metrics

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Development of Functional Materials for Photocatalytic Reduction of CO 2 TANG Lan-qin, JIA Yin, ZHU Zhi-shang, WU Cong-ping, ZHOU Yong, ZOU Zhi-gang Progress in Physics    2021, 41 (6): 254-263.   DOI: 10.13725/j.cnki.pip.2021.06.002 Abstract （2127）      PDF （3681KB）（3062）       With the increase of CO2 greenhouse gas emissions, seeking new energy sources to build a low carbon society has become more urgent since the 21st century. The conversion of CO2 to valuable hydrocarbon fuel driven by solar energy is of great potential and promising to realize the global carbon balance. Exploring semiconductor materials is very important for the photoreduction of CO2. Therefore, it will be the main research direction to fabricate highly efficient photocatalysis materials. This paper reviews recent research on photocatalytic reduction of CO2 to the hydrocarbon fuels in our groups, mainly focusing on nanostructure and component regulations of semiconductor catalysts, including TiO2, V, W, Ge Ga based materials, C3N4 based and some other materials, for the photocatalytic reduction of CO2. Related Articles | Metrics

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A Brief History of Solid State Physics SHI Feng , HAN Xiu-jun , ZHANG Ling-cui , XU Yue , ZHANG Chuan-jiang Progress in Physics    2021, 41 (4): 170-187.   DOI: 10.13725/j.cnki.pip.2021.04.002 Abstract （1923）      PDF （446KB）（3619）       The study of many-body problems in solid-state physics is an important branch of physics, covering a wide range of areas, and it is also the basis of many technical disciplines including materials science. This article discusses the brief history of the development of solid state physics, including the initial development history, the study of thermal properties, Weidmann-Franz law, the study history of the microscopic geometric structure of crystals, the free electron gas model, the energy band theory of solids, and the The research of solid magnetism, the information age, the development of solid state physics in China, and the teaching materials of solid state physics, etc., briefly describe the major events in the development of solid state physics, and the influential scientists and their contributions. Related Articles | Metrics

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Progress in Physics    2012, 32 (1): 33-56.   Abstract （312）      PDF （1672KB）（2138）       Related Articles | Metrics

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A survey of heavy-antiheavy hadronic molecules Dong Xiang-Kun, Guo Feng-Kun, Zou Bing-Song Progress in Physics    2021, 41 (2): 65-93.   DOI: 10.13725/j.cnki.pip.2021.02.001 Abstract （607）      PDF （1088KB）（4243）       Many efforts have been made to reveal the nature of the overabundant resonant structures observed by the worldwide experiments in the last two decades. Hadronic molecules attract special attention because many of these seemingly unconventional resonances are located close to the threshold of a pair of hadrons. To give an overall feature of the spectrum of hadronic molecules composed of a pair of heavy-antiheavy hadrons, namely, which pairs are possible to form molecular states, we take charmed hadrons for example to investigate the interaction between them and search for poles by solving the Bethe-Salpeter equation. We consider all possible combinations of hadron pairs of the S-wave singly-charmed mesons and baryons as well as the narrow P-wave charmed mesons. The interactions, which are assumed to be meson-exchange saturated, are described by constant contact terms which are resummed to generate poles. It turns out that if a system is attractive near threshold by the light meson exchange, there is a pole close to threshold corresponding to a bound state or a virtual state, depending on the strength of interaction and the cutoff. In total, 229 molecular states are predicted. The observed near-threshold structures with hidden-charm, like the famous X(3872) and Pc states, fit into the spectrum we obtain. We also highlight a  ΛcΛc  bound state that has a pole consistent with the cross section of the e+e-→ ΛcΛc  precisely measured by the BESIII Collaboration. Related Articles | Metrics

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Spin Hall Effect of Light and Its Applications in Measurements of Physical Parameters LIU Shuo-qing , CHEN Shi-zhen , LUO Hai-lu Progress in Physics    2022, 42 (2): 35-53.   DOI: 10.13725/j.cnki.pip.2022.02.001 Abstract （1439）      PDF （8674KB）（1998）       The spin Hall effect (SHE) of light refers to the transverse spin-dependent splitting of photons with opposite spin angular momentum after the beam passes through inhomogeneous media, in the direction perpendicular to the incident plane. It can be regarded as an analogue of the SHE in electronic systems, where the spin photons and the refractive index gradient replace the spin electrons and the electronic potential, respectively. Fundamentally, the SHE of light originates from the spin-orbit interaction of photons and depends mainly on two different geometric phases, namely, the spin redirection Rytov-Vlasimirskii-Berry phase in the momentum space and the Pancharatnam-Berry phase in the Stokes parameter space. Meanwhile, the SHE of light exhibits great sensitivity to the physical parameters, and combined with quantum weak measurements, has important application prospects in fields of physical parameters measurement and optical sensing. We briefly analyze the physical origin of the SHE of light, review its recent progress in different physical systems, and present its applications in measurements of physical parameters. Finally, the possible developing trends in optical analog computing, microscopy imaging, and quantum imaging are discussed. Related Articles | Metrics

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Hydrogen-Based Superconductors under High Pressures DU Ming-yang, ZHANG Zi-han, DUAN De-fang, CUI Tian Progress in Physics    2022, 42 (5): 184-192.   DOI: 10.13725/j.cnki.pip.2022.05.002 Abstract （567）      PDF （3042KB）（1417）       Achieving room temperature superconductivity has always been the dream of mankind pursuing for a long time. Finding and synthesizing new materials with room temperature superconductivity is the ”Holy Grail” of condensed matter physics. Since the theoretical and experimental discovery of H3S and LaH10 with high superconducting critical temperature above 200 K, the hydrogen-based superconductors became the best candidate for achieving room temperature superconductivity, which is also one of the hot areas of multi-disciplinary research in physics, materials science etc. In this work, we outline the development history of superconductors, introduce several typical superconducting materials, focus on the current progress and challenges of hydrogen based superconductors under high pressures, discuss the design ideas of hydrogen based high-temperature superconductors in the middle and low pressure range, and look forward to the possibility of hydrogen-based superconductors with high critical temperature and even room temperature under low pressure or ambient pressure. Related Articles | Metrics

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Progress in Physics    2017, 37 (1): 22-36.   Abstract （1263）      PDF （4790KB）（2475）       Related Articles | Metrics

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Development Status of Topological Superfluid in Ultracold Atoms FENG Jian, ZHANG Wei-wei, LIN Liang-wei, CAI Qi-peng, ZHANG Yi-cai, LIU Chao-fei Progress in Physics    2022, 42 (3): 67-95.   DOI: 10.13725/j.cnki.pip.2022.03.001 Abstract （443）      PDF （1246KB）（1195）       The topological superfluid state is protected by the energy gap in the bulk, but it can accommodate the gapless Majorana fermions at the edge of the system. The Majorana fermions satisfy non-Abelian statistics and are protected by topology and have good stability, they can carry quantized information and can be used in the study of topological quantum computing. In recent years, theoretical work has predicted the possible topological superfluid states in various systems. Firstly, we introduce the topological superfluid in various optical lattice models. The ultracold atoms of optical lattice have good controllability and universality. It is an ideal model system to realize topological superfluid. Next, we introduce the topological superfluid under the control of spin orbit coupling. The spin orbit coupling effect is an important condition to induce the topological phase, and the artificial spin orbit coupling has been realized in the experiment. Which makes a breakthrough for the experimental observation of topological superfluid. With the improvement of experimental technology in recent years, the topological FFLO superfluid phase, which was difficult to observe in the experiment and ignored by people, has also become a research hotspot. Therefore, we next introduce the topological FFLO superfluid. In addition, we also introduce the progress in other aspects of topological superfluid, including topological superfluid induced by soliton, three-component topological superfluid, topological superfluid with large Chern number, and the high critical temperature of topological superfluid. In the experiment, how to detect and implement topological superfluid is the purpose and significance of our research. Therefore, we introduce the identification and implementation of topological superfluid at the end of the article. Related Articles | Metrics

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Progress in Physics    2016, 36 (1): 21-33.   Abstract （833）      PDF （3742KB）（943）       Related Articles | Metrics

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Probing the Electronic Structure and Dimensionality Tuning of Ce-Based Heavy Fermion Materials WU Yi , LI Peng , WU Zhong-zheng , FANG Yuan , LIU Yang Progress in Physics    2022, 42 (3): 96-120.   DOI: 10.13725/j.cnki.pip.2022.03.002 Abstract （432）      PDF （2002KB）（951）       Heavy fermion compound is a classical type of correlated materials, encompassing unconventional superconductivity, strange metal, quantum criticality, magnetic order, heavy electronic states, correlated topological states, etc, in which 4f electrons play a critical role. With the advancement of high-resolution ARPES measurements and MBE thin film growth techniques, direct observation of the band dispersion and spectral weight of 4f electrons in momentum/energy space has become possible, providing spectroscopic insight for understanding correlated electronic states and novel quantum phenomena. In this review paper, we summarized the electronic studies of several typical heavy fermion compounds and thin films, including Ce-115 families, CuCu2Si2, CeRh6Ge4 and Ce films, etc. The experimental results provide direct evidence to understand the temperature evolution of heavy electronic states, energy/moment-dependent Kondo hybridization, the interplay of heavy electronic state with superconductivity, the competition between Kondo effect with other quantum states and the dimensionality tuning of 4f electrons. Related Articles | Metrics

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Progress in Physics    2012, 32 (1): 1-32.   Abstract （342）      PDF （1234KB）（920）       Related Articles | Metrics

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Gauge Field and Fiber Bundle：Its Contents, Methods, and Meanings  ZHAO Song-nian , LU Bo, CHEN Ken, HUANG Xu Progress in Physics    2023, 43 (1): 10-24.   DOI: 10.13725/j.cnki.pip.2023.01.002 Abstract （873）      PDF （708KB）（1236）       Related Articles | Metrics

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Applications of infrared spectroscopy in the study of iron-based superconductors Dai Yao-Min Progress in Physics    2018, 38 (4): 147-162.   Abstract （324）      PDF （1433KB）（829）       Infrared spectroscopy, as a bulk-sensitive technique, plays an important role in the study of unconventional superconducting materials. In this article, I will introduce the fundamentals of Fourier transform infrared spectroscopy, the in situ gold evaporation technique used to accurately measure the absolute reflectivity of solid materials, the methods and models we used for optical data analysis, and how we can use infrared spectroscopy to investigate the important and fascinating quantum phenomena in iron-based superconductors, such as the superconducting gaps, electronic pairing symmetry, spin-density-wave gaps, non-Fermi liquid behavior, lattice vibrations, as well as the relation and interaction between different orders and excitations. Related Articles | Metrics

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Proximity effect in topological insulator/superconductor heterostructure He Jia-Dian, Ding Yi-Fan, Teng Bo-Lun, Dong Peng, Li Yi-Fei, Zhang Yi-Wen, Wu Yue-Shen, Wang Jing-Hui, Zhou Xiang, Wang Zhi, Li Jun Progress in Physics    2021, 41 (3): 113-135.   DOI: 10.13725/j.cnki.pip.2021.03.001 Abstract （1509）      PDF （9251KB）（1847）       Topological superconductors have attracted increasing attentions for the purpose of the quantum computation, because the character of supporting topological qubits are immune to quantum decoherence and can be manipulated by braiding operation. Since the topological superconducting state is rather rare in the intrinsic topological superconductors, most of experimental efforts focus on inducing topological superconductors by the proximity effect in superconductor (SC)/topological insulator (TI) heterostructures. Fu and Kane have theoretically proposed that the topological superconductivity can be obtained by inducing an s-wave superconducting gap into TIs. After that, a lot of experimental progress has been made in different systems. In the first part of this review, we introduce the heterostructure of threedimensional (3D) TI Bi2Se3 and Bi2Te3 on s-wave SC NbSe2 and d-wave SC Bi2Sr2CaCu2O8+δ, topological crystalline insulator Sn1−xPbxTe on Pb, two-dimensional (2D) TI WTe2 on NbSe2, and TiBiSe2 on Pb. In the second part, the TI-based Josephson junctions are reviewed by introducing various experiments, including the Josephson junctions with TI barrier layers based on the Fu-Kane mode, and the superconducting quantum interference devices by TI based Josephson junctions. Related Articles | Metrics

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Historic Origin of Quantum Entanglement in Particle Physics SHI Yu Progress in Physics    2023, 43 (3): 57-67.   DOI: 10.13725/j.cnki.pip.2023.03.001 Abstract （749）      PDF （1284KB）（910）       The historic origin of quantum entanglement in particle physics is studied systematically and in depth. In 1957, Bohm and Aharonov noted that the 1950 Wu-Shaknov experiment had realized the discrete version of the Einstein-Podolsky-Rosen correlation. Indeed this experiment was definitely the first experimental realization of spatially separated quantum entanglement in history. Such an experiment had been proposed by Wheeler, as a test of quantum electrodynamics, but his calculation was erroneous. The correct theoretical calculations were made by Ward and Pryce and also by Snyder, Pasternack and Hornbostel. The entangled state of the photons also satisfies the selection rule of C. N. Yang in 1949. After the publication of Bell inequality in 1964, discussions on whether Wu-Shaknov experiment can be exploited in testing the inequality inspired the progress of this field, and a new experiment was done by Wu’s group. In 1957, Lee, Oehme and Yang established the quantum mechanical formulation of the kaons, and discovered that neutral kaon is a two-state system. The following year，Goldhaber, Lee and Yang wrote down entangled states of a pair of kaons for the first time, in which each kaon is allowed to be charged or neutral, as the entanglement in internal degrees of high energy particles beyond photons written down for the first time. In 1960, as an unpublished work, Lee and Yang discussed an entangled state of a pair of neutral kaons. Such entangled kaons widely exist in meson factories later on. Several physicist are also introduced, especially Ward. Related Articles | Metrics

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Progress in Physics    2014, 34 (1): 1-9.   Abstract （311）      PDF （1363KB）（1259）       Related Articles | Metrics

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Progress in Physics    2015, 35 (5): 212-239.   Abstract （331）      PDF （8890KB）（1178）       Related Articles | Metrics

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Progress in Physics    2017, 37 (2): 41-74.   Abstract （312）      PDF （652KB）（644）       Related Articles | Metrics

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Progress in Physics    2012, 32 (2): 57-59.   Abstract （207）      PDF （5636KB）（2508）       Related Articles | Metrics