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We suggest that the DNA molecules could form the cholesteric phase owing to an interaction mediated by the network of the hydrogen bonds (H-network) in the solvent. The model admits of the dependence of the optical activity of the solution…

Soft Condensed Matter · Physics 2009-10-31 V. L. Golo , E. I. Kats , Yu. M. Yevdokimov

A first-principles coupled electron-nuclear dynamics simulation based on real-time, time-dependent density functional theory and Ehrenfest dynamics quantitatively repro-duces bimodal translational energy loss and angular distributions…

Chemical Physics · Physics 2025-12-05 Jialong Shi , Lingjun Zhu , Florian Nitz , Oliver Bünermann , Alec M. Wodtke , Hua Guo , Bin Jiang

A trapping mechanism for propelled colloidal particles based on an inhomogeneous drive is presented and studied by means of computer simulations. In experiments this method can be realized using photophoretic Janus particles driven by a…

Computational Physics · Physics 2015-07-21 Martin P. Magiera , Lothar Brendel

The ionization potential distributions of hydrated hydroxide and hydronium are computed with many-body approach for electron excitations with configurations generated by {\it ab initio} molecular dynamics. The experimental features are well…

Chemical Physics · Physics 2014-01-20 Charles W. Swartz , Xifan Wu

We obtain analytical expressions for an effective potential of interaction between two- and three-dimensional (2D and 3D) solitons (including the case of 2D vortex solitons) belonging to two different modes which are incoherently coupled by…

patt-sol · Physics 2009-10-31 Andrey Maimistov , Boris Malomed , Anton Desyatnikov

The processes of electron excitation, capture, and ionization were investigated in proton collisions with atomic hydrogen in the initial $n=1$ and $n=2$ states at impact energies from 1 to 300 keV. The theoretical analysis is based on the…

Atomic Physics · Physics 2019-12-10 Anthony C. K. Leung , Tom Kirchner

The propagation of light in strongly coupled atomic media takes place through the formation of polaritons - hybrid quasi-particles resulting from a superposition of an atomic and a photonic excitation. Here we consider the propagation under…

Quantum Gases · Physics 2020-09-30 Johannes Lang , Darrick E. Chang , Francesco Piazza

Cooperative binding affects many processes in biology, but it is commonly addressed only in equilibrium. In this work we explore dynamical cooperativity in driven systems, where the cooperation occurs because some of the bonds change the…

Biological Physics · Physics 2015-05-13 Jørgen Kjoshagen Trømborg , Alfredo Alexander-Katz

We present in this paper a formalism for deuteron-induced inclusive reactions. We disentangle direct elastic breakup contributions from other processes (which we generically call non-elastic breakup) implying a capture of the neutron both…

Nuclear Theory · Physics 2015-10-12 Gregory Potel , Filomena M. Nunes , Ian J. Thompson

The aqueous proton displays an anomalously large diffusion coefficient that is up to 7 times that of similarly sized cations. There is general consensus that the proton achieves its high diffusion through the Grotthuss mechanism, whereby…

Chemical Physics · Physics 2018-12-18 Sean A. Fischer , Brett I. Dunlap , Daniel Gunlycke

We report the results of an experiment investigating coherence and correlation effects in a system of coupled donors. Two donors are strongly coupled to two leads in a parallel configuration within a nano-wire field effect transistor. By…

Mesoscale and Nanoscale Physics · Physics 2013-05-22 J. Verduijn , R. R. Agundez , M. Blaauboer , S. Rogge

The quasi-molecular mechanism of recombination, recently suggested by Kereselidze et al., is a non-standard process where an electron and two neighboring protons in the early universe directly form an ionized hydrogen molecule in a highly…

Cosmology and Nongalactic Astrophysics · Physics 2022-04-26 Zhiqi Huang

Water's ability to autoionize into hydroxide and hydronium ions profoundly influences surface properties, rendering interfaces either basic or acidic. While it is well-established that protons show an affinity to the air-water interface, a…

Chemical Physics · Physics 2025-02-05 Xavier R. Advincula , Kara D. Fong , Angelos Michaelides , Christoph Schran

Clusters consisting of small molecules containing hydrogen do eject fast protons when illuminated by short X-ray pulses. A suitable overall charging of the cluster controlled by the X-ray intensity induces electron migration from the…

Atomic and Molecular Clusters · Physics 2013-09-19 Pierfrancesco Di Cintio , Ulf Saalmann , Jan-Michael Rost

This work considers how the properties of hydrogen bonded complexes, D-H....A, are modified by the quantum motion of the shared proton. Using a simple two-diabatic state model Hamiltonian, the analysis of the symmetric case, where the donor…

Chemical Physics · Physics 2014-05-09 Ross H. McKenzie , Christiaan Bekker , Bijyalaxmi Athokpam , Sai G. Ramesh

The difference between the structures of jets produced in heavy-ion and hadronic collisions can best be exhibited in the correlations between particles within those jets. We study the dihadron correlations in jets in the framework of parton…

Nuclear Theory · Physics 2009-11-10 Rudolph C. Hwa , C. B. Yang

Heterostructures of 2D materials offer a fertile ground to study ion transport and charge storage. Here we employ ab initio molecular dynamics to examine the proton-transfer/diffusion and redox behavior in a water layer confined in the…

Chemical Physics · Physics 2022-01-12 Lihua Xu , De-en Jiang

The hydrogen-bond (H-bond) network of high-pressure water is investigated by neural-network-based molecular dynamics (MD) simulations with the first-principles accuracy. The static structure factors (SSFs) of water at three densities, i.e.,…

Chemical Physics · Physics 2023-08-04 Renxi Liu , Mohan Chen

We explore the interplay between the protein-protein interactions network and the expression of the interacting proteins. It is shown that interacting proteins are expressed in significantly more similar cellular concentrations. This is…

Molecular Networks · Quantitative Biology 2007-05-23 Shai Carmi , Erez Y. Levanon , Shlomo Havlin , Eli Eisenberg

Water is often viewed as a collection of monomers interacting electrostatically with each other. We compare the water proton momentum distributions from recent neutron scattering data with those calculated from two electronic structure…

Chemical Physics · Physics 2015-05-27 C. J. Burnham , G. F. Reiter , T. Hayashi , S. Mukamel , R. L. Napoleon , T. Keyes