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相关论文: Computer Modeling of Halogen Bonds and Other $\sig…

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To contribute to the understanding of noncovalent binding of halogenated molecules with a biological activity, electrostatic potential (ESP) maps of more than 2,500 compounds were thoroughly analysed. A peculiar region of positive ESP,…

化学物理 · 物理学 2017-10-09 Michal H. Kolář , Paolo Carloni , Pavel Hobza

Partial atomic charges belong to key concepts of computational chemistry. In some cases, however, they fail in describing the electrostatics of molecules. One such example is the $\sigma$-hole, a region of positive electrostatic potential…

化学物理 · 物理学 2022-01-05 Aneta Leskourová , Michal H. Kolář

Halogen bonding has emerged as an important noncovalent interaction in a myriad of applications, including drug design, supramolecular assembly, and catalysis. Current understanding of the halogen bond is informed by electronic structure…

化学物理 · 物理学 2019-05-23 Richard C. Remsing , Michael L. Klein

Halogen bond (X-bond) is a noncovalent interaction between a halogen atom and an electron donor. It is often rationalized by a region of the positive electrostatic potential on the halogen atom, so-called $\sigma$-hole. The X-bond strength…

化学物理 · 物理学 2020-06-04 Michal H. Kolář , Denisa Suchá , Michal Pitoňák

We present a full derivation of the interaction Hamiltonian for holes in silicon within the six-band envelope-function scheme, which appropriately describes the valence band close to the $\boldsymbol{\Gamma}$ point. The full structure of…

介观与纳米尺度物理 · 物理学 2021-11-17 Andrea Secchi , Laura Bellentani , Andrea Bertoni , Filippo Troiani

We construct a covariant model for short range correlations of a pion emerged in nuclear matter. Once the delta-hole contribution is considered an additional and so far neglected channel opens that leads to significant modifications in the…

核理论 · 物理学 2010-12-16 M. F. M. Lutz

Recent joint multiple intent detection and slot filling models employ label embeddings to achieve the semantics-label interactions. However, they treat all labels and label embeddings as uncorrelated individuals, ignoring the dependencies…

计算与语言 · 计算机科学 2022-11-08 Bowen Xing , Ivor W. Tsang

Labels and tags are accompanying us in almost each moment of our life and everywhere we are going, in the form of electronic keys or money, or simply as labels on products we are buying in shops and markets. The label diffusion, rapidly…

科普物理 · 物理学 2008-01-18 Amelia Sparavigna

We first argue that the covalent bond and the various closed-shell interactions can be thought of as symmetry broken versions of one and the same interaction, viz., the multi-center bond. We use specially chosen molecular units to show that…

强关联电子 · 物理学 2017-06-16 Jon C. Golden , Vinh Ho , Vassiliy Lubchenko

An anisotropic charge distribution on individual atoms, such as e.g. {\sigma}-hole, may strongly affect material and structural properties of systems. Nevertheless, subatomic resolution of such anisotropic charge distributions represents a…

材料科学 · 物理学 2021-06-25 B. Mallada1 , A. Gallardo , M. Lamanec , B. de la Torre , V. Špirko , P. Hobza , P. Jelinek

Entanglement is a crucial resource for quantum technologies ranging from quantum communication to quantum-enhanced measurements and computation. Finding experimental setups for these tasks is a conceptual challenge for human scientists due…

量子物理 · 物理学 2025-07-23 Sören Arlt , Carlos Ruiz-Gonzalez , Mario Krenn

The determination of the effective Coulomb interactions to be used in low-energy Hamiltonians for materials with strong electronic correlations remains one of the bottlenecks for parameter-free electronic structure calculations. We propose…

强关联电子 · 物理学 2017-08-09 Priyanka Seth , Philipp Hansmann , Ambroise van Roekeghem , Loig Vaugier , Silke Biermann

Agostic interactions are covalent intramolecular interactions between an electron deficient metal and a sigma-bond in close geometrical proximity to the metal atom. While the classic cases involve CH sigma-bonds close to early transition…

化学物理 · 物理学 2010-04-29 Matthias Lein

Topological insulators have become one of the most active research areas in condensed matter physics. This article reviews progress on the topic of electronic correlations effects in the two-dimensional case, with a focus on systems with…

强关联电子 · 物理学 2013-03-08 M. Hohenadler , F. F. Assaad

When the excitation of carriers in real space is focused down to the nanometer scale, the carrier system can no longer be viewed as homogeneous and ultrafast transport of the excited carrier wave packets occurs. In state-of-the-art…

介观与纳米尺度物理 · 物理学 2019-05-01 F. Lengers , R. Rosati , T. Kuhn , D. E. Reiter

The effects of strong Coulomb correlations in dense three-dimensional electron-hole plasmas are studied by means of unbiased direct path integral Monte Carlo simulations. The formation and dissociation of bound states, such as excitons and…

强关联电子 · 物理学 2009-11-13 V. S. Filinov , H. Fehske , M. Bonitz , V. E. Fortov , P. Levashov

Preparation of nonclassical light with special quantum properties is essential for quantum technologies. High-harmonic generation (HHG) is a process which not only enables the creation of attosecond pulses but also has the potential to…

量子物理 · 物理学 2026-03-03 Ákos Gombkötő , Péter Ádám , David Theidel , Tamás Kiss

We theoretically study the generation of quantum correlations in a hybrid system composed by two interacting semiconductor quantum dots mediated by a metal nanoparticle and coupled to an external laser field. Interactions present in the…

量子物理 · 物理学 2017-07-18 Kostas Blekos , Maria-Eftaxia Stasinou , Andreas F. Terzis , Emmanuel Paspalakis

Halogen bonding (X-bonding) has attracted notable attention among noncovalent interactions. This highly directional attraction between a halogen atom and an electron donor has been exploited in knowledge-based drug design. A great deal of…

化学物理 · 物理学 2017-09-08 Michal H. Kolář , Oriana Tabarrini

We present a theory of interacting valence holes in a gate-defined one-dimensional quantum channel in a single layer of a transition metal dichalcogenide material WSe$_2$. Based on a microscopic atomistic tight-binding model and…

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