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Boron phosphide (BP) is a (super)hard semiconductor constituted of light elements, which is promising for high demand applications at extreme conditions. The behavior of BP at high temperatures and pressures is of special interest but is…

Light harvesting by photosystem II (PSII) in plants is highly efficient and acclimates to rapid changes in the intensity of sunlight. However, the mechanisms of PSII light harvesting have remained experimentally inaccessible. Using a…

Biological Physics · Physics 2016-04-27 Kapil Amarnath , Doran I. G. Bennett , Anna R. Schneider , Graham R. Fleming

We study the magnetic and thermodynamic properties of a spin-$1/2$ Ising system containing three layers, each of which is composed exclusively of one out of two possible types of atoms, \textbf{A} or \textbf{B}. The \textbf{A-A} and…

Statistical Mechanics · Physics 2019-10-04 Ian Jordy Lopez Diaz , Nilton Silva Branco

Alkalies are considered to be simple metals at ambient conditions. However, recently reported theoretical and experimental results have shown an unexpected and intriguing correlation between complex structures and an enhanced…

Materials Science · Physics 2015-06-25 A. Rodriguez-Prieto , V. M. Silkin , A. Bergara

We present results from a large mosaic of Suzaku observations of the Coma Cluster, the nearest and X-ray brightest hot, dynamically active, non-cool core system, focusing on the thermodynamic properties of the ICM on large scales. For…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 A. Simionescu , N. Werner , O. Urban , S. W. Allen , A. C. Fabian , A. Mantz , K. Matsushita , P. E. J. Nulsen , J. S. Sanders , T. Sasaki , T. Sato , Y. Takei , S. A. Walker

We simulate the electrical properties of a device realized by a G protein coupled receptor (GPCR), embedded in its membrane and in contact with two metallic electrodes through which an external voltage is applied. To this purpose, recently,…

Quantitative Methods · Quantitative Biology 2009-11-11 C. Pennetta , V. Akimov , E. Alfinito , L. Reggiani , G. Gomila , G. Ferrari , L. Fumagalli , M. Sampietro

Recent studies attracted the attention on the inherent structure landscape (ISL) approach as a reduced description of proteins allowing to map their full thermodynamic properties. However, the analysis has been so far limited to a single…

Statistical Mechanics · Physics 2009-12-22 Johannnes-Geert Hagmann , Naoko Nakagawa , Michel Peyrard

The O I 1355{\AA} spectral line is one of the only optically thin lines that are both routinely observed and thought to be formed in the chromosphere. We present analysis of a variety of observations of this line with the Interface Region…

Solar and Stellar Astrophysics · Physics 2023-08-29 Mats Carlsson , Bart De Pontieu

We extend our analysis of a IIB supergravity solution dual to a spatially anisotropic finite-temperature N=4 super Yang-Mills plasma. The solution is static, possesses an anisotropic horizon, and is completely regular. The full geometry can…

High Energy Physics - Theory · Physics 2011-11-10 David Mateos , Diego Trancanelli

The diversity of Type Ia supernova (SN Ia) photometry is explored using a grid of 130 one-dimensional models. It is shown that the observable properties of SNe Ia resulting from Chandrasekhar-mass explosions are chiefly determined by their…

Astrophysics · Physics 2011-02-11 S. E. Woosley , Daniel Kasen , S. Blinnikov , E. Sorokina

Comments: 6 pages RevTeX, 6 Postscript figures. We review a statistical mechanics treatment of the stability of globular proteins based on a simple model Hamiltonian taking into account protein self interactions and protein-water…

Condensed Matter · Physics 2009-10-31 Alex Hansen , Mogens H. Jensen , Kim Sneppen , Giovanni Zocchi

The equilibrium structures and electronic excitation spectra of the Ir(III) photosensitizer Ir(ppy)$_2$(bpy)]$^+$ bound to medium-sized silver clusters Ag$_n$ ($n=$19, 20) are investigated using time-dependent density functional theory. The…

Chemical Physics · Physics 2016-05-25 Olga S. Bokareva , Oliver Kühn

The Phase-Induced Amplitude Apodization (PIAA) coronagraph is a high performance coronagraph concept able to work at small angular separation with little loss in throughput. We present results obtained with a laboratory PIAA system…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 Olivier Guyon , Eugene Pluzhnik , Frantz Martinache , Julien Totems , Shinichiro Tanaka , Taro Matsuo , Celia Blain , Ruslan Belikov

The He I 10830{\AA} line, a crucial optically thin chromospheric line, is frequently used to study coronal heating and vertical coupling across the chromosphere-corona interface. However, its images are severely contaminated by the strong…

Solar and Stellar Astrophysics · Physics 2026-05-26 Huaiming Li , Fangyu Xu , Yi Bi , Zhenyu Jin

We employ first principles total energy and phonon calculations to address the structure and stability of Al$_2$Fe. This structure, which is reported as stable in the assessed Al-Fe phase diagram, is distinguished by an unusually low…

Materials Science · Physics 2011-07-05 M. Mihalkovič , M. Widom

During catastrophic processes of environmental variations of a thermodynamic system, such as rapid temperature decreasing, many novel and complex patterns often form. To understand such phenomena, a general mechanism is proposed based on…

Soft Condensed Matter · Physics 2016-08-31 Zhou Haijun , Ou-Yang Zhong-can

X-ray data of the Centaurus cluster, obtained with {\it XMM-Newton} for 45 ksec, were analyzed. Deprojected EPIC spectra from concentric thin shell regions were reproduced equally well by a single-phase plasma emission model, or by a…

Cosmology and Nongalactic Astrophysics · Physics 2009-08-11 I. Takahashi , M. Kawaharada , K. Makishima , K. Matsushita , Y. Fukazawa , Y. Ikebe , T. Kitaguchi , M. Kokubun , K. Nakazawa , S. Okuyama , N. Ota , T. Tamura

Amongst the iron-based superconductors, LiFeAs is unrivalled in the simplicity of its crystal structure and phase diagram. However, our understanding of this canonical compound suffers from conflict between mutually incompatible…

Photoionization models frequently assume constant temperature or density within HII regions. We investigate this assumption by measuring the detailed temperature and density structures of four HII regions in the Large Magellanic Cloud and…

Astrophysics of Galaxies · Physics 2023-10-04 Yifei Jin , Ralph Sutherland , Lisa Kewley , David Nicholls

We study four citrate synthase homodimeric proteins within a structure-based coarse-grained model. Two of these proteins come from thermophilic bacteria, one from a cryophilic bacterium and one from a mesophilic organism; three are in the…

Biomolecules · Quantitative Biology 2015-02-26 Bartosz Rozycki , Marek Cieplak