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In strong laser fields, sub-femtosecond control of chemical reactions with the carrier-envelope phase (CEP) becomes feasible. We have studied the control of reaction dynamics of acetylene and allene in intense few-cycle laser pulses at 750…

A new ro-vibrational line list for the ground electronic state of the main isotopologue of acetylene, $^{12}$C$_2$H$_2$, is computed as part of the ExoMol project. The aCeTY line list covers the transition wavenumbers up to 10,000 cm$^{-1}$…

Solar and Stellar Astrophysics · Physics 2020-02-05 Katy L. Chubb , Jonathan Tennyson , Sergey N. Yurchenko

The expansion of a charge-neutral cloud of electrons and positrons with the temperature 1 MeV into an unmagnetized ambient plasma is examined with a 2D particle-in-cell (PIC) simulation. The pair outflow drives solitary waves in the ambient…

High Energy Astrophysical Phenomena · Physics 2018-08-01 ME Dieckmann , A Alejo , G Sarri

Breathing is one of the most important body functions because it provides it with oxygen, which is vital for energy production. In addition, the removal of carbon dioxide actively regulates the acid-base level, which is essential for the…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Janosch Kunczik , Kerstin Hubbermann , Lucas Mösch , Andreas Follmann , Michael Czaplik , Carina Barbosa Pereira

Electron-phonon ($e$-ph) interactions are key to understanding the dynamics of electrons in materials, and can be modeled accurately from first-principles. However, when electrons and holes form Coulomb-bound states (excitons), quantifying…

Materials Science · Physics 2020-09-09 Hsiao-Yi Chen , Davide Sangalli , Marco Bernardi

We consider how the infrared intensity of an O-H stretch in a hydrogen bonded complex varies as the strength of the H-bond varies from weak to strong. We obtain trends for the fundamental and overtone transitions as a function of…

Chemical Physics · Physics 2017-03-30 Bijyalaxmi Athokpam , Sai G. Ramesh , Ross H. McKenzie

Atmosphere-breathing electric propulsion (ABEP) is a promising technology for long-term orbit maintenance in very-low-Earth orbit. The intake device plays a crucial role in capturing and supplying propellant, and its capture efficiency is a…

A method is proposed to analyze the heartbeat waveform that can yield a reliable characterization of the structure after only a few pulses. The measure suggested is entropy index that is related to the one found effective in describing…

Medical Physics · Physics 2007-05-23 Rudolph C. Hwa

This paper presents a novel mechatronic setup intended for providing respiratory support to patients suffering from pulmonary failure. The setup relies upon the circulation of an oxygenated perfluorocarbon (PFC) through the abdominal…

We study the structural changes occurring in the isotropic phase of the C$_{12}$=EO$_6$/H$_2$O lyotropic mixture (up to 35% surfactant weight concentration) upon increasing the concentration and temperature, from small individual micelles…

Soft Condensed Matter · Physics 2015-04-09 Doru Constantin , Éric Freyssingeas , Jean-François Palierne , Patrick Oswald

Abrupt time variations of the properties of optical materials have been at the center of intense research efforts in recent years, with the prospect of enabling extreme wave transformations and of leveraging time as a degree of freedom for…

Ultrafast, time-resolved spectroscopies enable the direct observation of non-equilibrium processes in condensed-phase systems and have revealed key insights into energy transport, hydrogen-bond dynamics, and vibrational coupling. While ab…

Chemical Physics · Physics 2025-09-01 Kit Joll , Philipp Schienbein

Multivariate data analysis and machine-learning classification become popular tools to extract features without physical models for complex environments recognition. For electronic noses, time sampling over multiple sensors must be a fair…

Soft Condensed Matter · Physics 2023-08-25 Wiem Haj Ammar , Aicha Boujnah , Aimen Boubaker , Adel Kalboussi , Kamal Lmimouni , Sébastien Pecqueur

High precision radio-frequency, microwave and infrared spectroscopic measurements of the antihydrogen molecular ion $\bar{H}_{2}^{-}$ ($\bar{p}\bar{p}e^{+}$) compared with its normal matter counterpart provide direct tests of the CPT…

Atomic Physics · Physics 2018-07-30 Edmund G. Myers

A model consisting of oxygen-occupied and -vacant chains is considered, with repulsive first and second nearest-neighbor interactions V1 and V2, respectively. The statistical mechanics and the diffraction spectrum of the model is solved…

Condensed Matter · Physics 2009-10-22 A. A. Aligia

Mode-locked lasers play the role of the ideal testbeds for studying self-coherent structures, dissipative solitons, with stable spatiotemporal profiles supported by the balance between dispersion and nonlinearity. However, under some…

Pattern Formation and Solitons · Physics 2022-11-18 Zhiwei Huang , Sergey Sergeyev , Qing Wang , Hani Kbashi , Dmitrii Stoliarov , Qianqian Huang , Yuze Dai , Zhijun Yan , Chengbo Mou

In this paper we develop a semi-analytical perturbation-theory approach to the calculation of the energy levels (binding energies) and wave functions of excitons in phosphorene. Our method gives both the exciton wave function in real and…

Mesoscale and Nanoscale Physics · Physics 2020-01-14 J. C. G. Henriques , N. M. R. Peres

Proton-conducting oxides are potential materials for electrochemical devices such as fuel cells, hydrogen pumps, hydrogen sensors, and the tritium purification and recovery system in nuclear fusion reactors. The hydrogen concentration in…

Applied Physics · Physics 2022-03-24 M. Khalid Hossain , Kenichi Hashizume

Optical emission spectroscopy from a small-volume, 5 uL, atmospheric pressure RF-driven helium plasma was used in conjunction with Partial Least Squares Discriminant Analysis (PLS-DA) for the detection of trace concentrations of methane…

Plasma Physics · Physics 2022-07-12 Tahereh Shah Mansouri , Hui Wang , Davide Mariotti , Paul Maguire

The most recent experimental advances could provide ways for the fabrication of several atomic thick and planar forms of boron atoms. For the first time, we explore the mechanical properties of five types of boron films with various vacancy…

Materials Science · Physics 2017-04-17 Minh-Quy Le , Bohayra Mortazavi , Timon Rabczuk
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