Topic
Physicist
About: Physicist is a research topic. Over the lifetime, 180 publications have been published within this topic receiving 3411 citations.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: A new solid-state platform based on moiré superlattices that can be used to simulate problems in strong-correlation physics that are described by triangular-lattice Hubbard models is established.
Abstract: The Hubbard model, formulated by physicist John Hubbard in the 1960s1, is a simple theoretical model of interacting quantum particles in a lattice. The model is thought to capture the essential physics of high-temperature superconductors, magnetic insulators and other complex quantum many-body ground states2,3. Although the Hubbard model provides a greatly simplified representation of most real materials, it is nevertheless difficult to solve accurately except in the one-dimensional case2,3. Therefore, the physical realization of the Hubbard model in two or three dimensions, which can act as an analogue quantum simulator (that is, it can mimic the model and simulate its phase diagram and dynamics4,5), has a vital role in solving the strong-correlation puzzle, namely, revealing the physics of a large number of strongly interacting quantum particles. Here we obtain the phase diagram of the two-dimensional triangular-lattice Hubbard model by studying angle-aligned WSe2/WS2 bilayers, which form moire superlattices6 because of the difference between the lattice constants of the two materials. We probe the charge and magnetic properties of the system by measuring the dependence of its optical response on an out-of-plane magnetic field and on the gate-tuned carrier density. At half-filling of the first hole moire superlattice band, we observe a Mott insulating state with antiferromagnetic Curie-Weiss behaviour, as expected for a Hubbard model in the strong-interaction regime2,3,7-9. Above half-filling, our experiment suggests a possible quantum phase transition from an antiferromagnetic to a weak ferromagnetic state at filling factors near 0.6. Our results establish a new solid-state platform based on moire superlattices that can be used to simulate problems in strong-correlation physics that are described by triangular-lattice Hubbard models.
874 citations
TL;DR: In this article, Allen and Eberly, who have been most actively engaged in the expanding field of laser physics have written this introduction to optical resonance, pulse propagation and superradiance and allied phenomena relying mainly on quasiclassical methods.
Abstract: L Allen and J H Eberly Chichester: J Wiley 1975 pp xiii + 233 price £10.80 (cased) Allen and Eberly, who have been most actively engaged in the expanding field of laser physics have written this introduction to optical resonance, pulse propagation and superradiance and allied phenomena relying mainly on quasiclassical methods. The mathematical apparatus and the actual, minimal, amount of quantum electrodynamics put to use, should make this text accessible to every graduate physicist.
482 citations
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27 Jan 2000
TL;DR: The physics of foams is a field that explores the properties of foams and their behavior in various physical phenomena. It involves extensive experiments, simulations, and theories, emphasizing liquids and solid foams. The book covers structure, drainage, rheology, conductivity, and coarsening.
Abstract: Abstract Ordinary foams such as the head of a glass of beer and more exotic ones such as solid metallic foams raise many questions for the physicist and have attracted a substantial research community in recent years. This book describes the results of extensive experiments, computer simulations and theories in an authoritative yet informal style, making ample use of illustrations and photographs. As an introduction to the whole field of the physics of foams it puts a strong emphasis on liquids while also including solid foams. Simple, idealized models are adopted and their consequences explored. Specific topics include: structure, drainage, rheology, conductivity and coarsening. A minimum of mathematics is used. Theory and experiment are described together at every stage. A guide to further reading is provided through carefully selected references. This is a complete and coherent introduction to the subject which no other modern text currently offers.
204 citations
Book•
1 Jan 2005TL;DR: This chapter discusses the physics of genetic regulation: the l-phage, and the role of DNA and RNA in this regulation.
Abstract: Tools developed by statistical physicists are of increasing importance in the analysis of complex biological systems. Physics in Molecular Biology, first published in 2005, discusses how physics can be used in modeling life. It begins by summarizing important biological concepts, emphasizing how they differ from the systems normally studied in physics. A variety of topics, ranging from the properties of single molecules to the dynamics of macro-evolution, are studied in terms of simple mathematical models. The main focus of the book is on genes and proteins and how they build systems that compute and respond. The discussion develops from simple to complex systems, and from small-scale to large-scale phenomena. This book will inspire advanced undergraduates and graduate students in physics to approach biological subjects from a physicist's point of view. It is self-contained, requiring no background knowledge of biology, and only familiarity with basic concepts from physics, such as forces, energy, and entropy.
133 citations
113 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 43 |
| 2024 | 66 |
| 2023 | 79 |
| 2022 | 89 |
| 2021 | 12 |
| 2020 | 6 |