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Fe2Al5 contains a Fe-Al matrix through which are threaded disordered one-dimensional chains of overlapping Al sites. We report magnetic, nuclear-magnetic-resonance (NMR), and specific-heat measurements addressing its magnetic and…

We study localization properties of continuously monitored dynamics and associated measurement-induced phase transitions in disordered quantum many-body systems on the basis of the quantum trajectory approach. By calculating the fidelity…

统计力学 · 物理学 2023-06-09 Kazuki Yamamoto , Ryusuke Hamazaki

Quantifying the effects of amino acid mutations in proteins presents a significant challenge due to the vast combinations of residue sites and amino acid types, making experimental approaches costly and time-consuming. The Potts model has…

统计方法学 · 统计学 2025-05-22 Bingying Dai , Yinan Lin , Kejue Jia , Zhao Ren , Wen Zhou

Density functional theory and ab initio methods have been employed to address the impacts of hydroxyl (OH) group substitutions on the physico-chemical properties of levodopa (or L-dopa) against the natural amino acids, phenylalanine and…

化学物理 · 物理学 2014-01-09 Aravindhan Ganesan , Narges Mohammadi , Feng Wang

Previous studies have shown that small changes can be monitored in a scattering medium by observing phase shifts in the coda. Passive monitoring of weak changes through ambient noise correlation has already been applied to seismology,…

地球物理 · 物理学 2015-05-13 Céline Hadziioannou , Eric Larose , Olivier Coutant , Philippe Roux , Michel Campillo

The valence orders at $T_a=125$ K and $T_b=105$ K in the cubic compound YbPd have been investigated by $^{105}$Pd-nuclear magnetic resonance (NMR) measurements. Significant decrease in the density of states at the Fermi energy below $T_a$…

强关联电子 · 物理学 2019-02-19 R. Nakanishi , T. Fujii , Y. Nakai , K. Ueda , M. Hirata , K. Oyama , A. Mitsuda , H. Wada , T. Mito

The structural and magnetic properties of polycrystalline YMn1-xMxO3 (M = Ti, Fe, Ga; x = 0, 0.1) have been studied by neutron powder diffraction and magnetic measurements to probe the effect of Mn site doping on the frustration behavior…

材料科学 · 物理学 2013-08-13 Neetika , A. Das , C. L. Prajapat , S. S. Meena

Endeavoring toward a transferable, predictive coarse-grained explicit-chain model for biomolecular condensates underlain by liquid-liquid phase separation (LLPS), we conducted multiple-chain simulations of the N-terminal intrinsically…

生物大分子 · 定量生物学 2020-12-10 Suman Das , Yi-Hsuan Lin , Robert M. Vernon , Julie D. Forman-Kay , Hue Sun Chan

We consider a general incompressible finite model protein of size M in its environment, which we represent by a semiflexible copolymer consisting of amino acid residues classified into only two species (H and P, see text) following Lau and…

统计力学 · 物理学 2008-01-16 P. D. Gujrati , Bradley P. Lambeth , Andrea Corsi , Evan Askanazi

By balancing the average energy gap with its typical change due to mutations for protein-like heteropolymers with M residues, we show that native states are unstable to mutations on a scale M* ~ (lambda/sigma_mu)^(1/zeta_s), where lambda is…

软凝聚态物质 · 物理学 2009-10-30 H. J. Bussemaker , D. Thirumalai , J. K. Bhattacharjee

We report magnetization, specific heat, and NMR investigations on YFe2Al10 over a wide range in temperature and magnetic field and zero field (NQR) measurements. Magnetic susceptibility, specific heat and spin-lattice relaxation rate…

强关联电子 · 物理学 2017-12-06 P. Khuntia , A. Strydom , L. S. Wu , M. C. Aronson , F. Steglich , M. Baenitz

A variation of the fundamental constants is expected to affect the thermonuclear rates important for stellar nucleosynthesis. In particular, because of the very small resonant energies of Be8 and C12, the triple $\alpha$ process is…

太阳与恒星天体物理 · 物理学 2014-11-20 Sylvia Ekstrom , Alain Coc , Pierre Descouvemont , Georges Meynet , Keith A. Olive , Jean-Philippe Uzan , Elisabeth Vangioni

To investigate the static and dynamic magnetic properties on the uranium-based superconductor UTe$_{2}$, we measured the NMR Knight shift $K$ and the nuclear spin-lattice relaxation rate $1/T_{1}$ in $H \parallel a$ by $^{125}$Te-NMR on a…

The extension of thermodynamic principles to active matter remains a challenge due to the non-equilibrium nature inherent to active systems. In this study, we introduce a framework to assess entropy in our minimal macroscopic experiment…

软凝聚态物质 · 物理学 2024-09-26 Francesco Romanò , Michael Riedl

We analyze the effects of noise on the permutation entropy of dynamical systems. We take as numerical examples the logistic map and the R\"ossler system. Upon varying the noise strengthfaster, we find a transition from an…

数据分析、统计与概率 · 物理学 2015-09-30 C. Quintero-Quiroz , Simone Pigolotti , M. C. Torrent , Cristina Masoller

The biological properties of proteins are uniquely determined by their structure and dynamics. A protein in solution populates a structural ensemble of metastable configurations around the global fold. From overall rotation to local…

生物物理 · 物理学 2015-12-09 J. Copperman , M. G. Guenza

Topological entanglement entropy is a topological invariant which can detect topological order of quantum many-body ground state. We assume an existence of such order parameter at finite temperature which is invariant under smooth…

量子物理 · 物理学 2013-05-30 Isaac H. Kim

Theoretically challenging, the understanding of the dynamical response in quantum antiferromagnets is of great interest, in particular for both inelastic neutron scattering (INS) and nuclear magnetic resonance (NMR) experiments. In such a…

强关联电子 · 物理学 2018-09-07 Maxime Dupont , Sylvain Capponi , Nicolas Laflorencie , Edmond Orignac

In an experimental study of single enzyme reactions, it has been proposed that the rate constants of the enzymatic reactions fluctuate randomly, according to a given distribution. To quantify the uncertainty arising from random rate…

定量方法 · 定量生物学 2012-02-07 Chia Ying Lee

We investigate the energy dependence of inelastic processes in systems which possess Efimov states. We consider the three-body recombination rate $K_3$ where three free atoms interact to produce an atom--dimer pair, and the relaxation rate…

原子物理 · 物理学 2016-10-20 D. Shu , I. Simbotin , R. Côté