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We explore gravitational wave signals arising from first-order phase transitions occurring in a secluded hidden sector, allowing for the possibility that the hidden sector may have a different temperature than the Standard Model sector. We…

高能物理 - 唯象学 · 物理学 2019-07-08 Moritz Breitbach , Joachim Kopp , Eric Madge , Toby Opferkuch , Pedro Schwaller

In Ultra high energy collisions, the concept of a glass law is invoked in the framework of 'low tension' QCD strings. It is shown that the excitation of QCD strings at low energy has a negative temperature and at high energy has a positive…

核理论 · 物理学 2007-05-23 V. Parihar , A. Widom , Y. N. Srivastava

A vessel is plunged upside down into a pool of 50 cSt silicone oil. An air bell is then created. This bell is vertically shaken at 60 Hz that leads to the oscillation of the air/oil interface. The edges of the immersed vessel generate…

流体动力学 · 物理学 2010-10-18 D. Terwagne , G. Delon , N. Adami , N. Vandewalle , H. Caps , S. Dorbolo

We consider pattern formation in periodically forced binary systems. In particular we focus on systems in which the two species are differentially forced, one being accelerated with respect to the other. Using a continuum model consisting…

材料科学 · 物理学 2007-05-23 C. M. Pooley , J. M. Yeomans

We compare string percolation phenomenology to Glasma results on particle rapidity densities, effective string or flux tube intrinsic correlations, the ridge phenomena and long range forward-backward correlations. Effective strings may be a…

高能物理 - 唯象学 · 物理学 2011-01-27 J. Dias de Deus , C. Pajares

A self-consistent three-dimensional model for a complex (dusty) plasma is used to study the effects of multiple-sized dust grains in a dust crystal. In addition to the interparticle forces, which interact through a Yukawa potential, the…

天体物理学 · 物理学 2009-11-11 L. S. Matthews , K. Qiao , T. W. Hyde

We study the vibrational spectra of one-dimensional statically compressed granular crystals (arrays of elastic particles in contact) containing defects. We focus on the prototypical settings of one or two spherical defects (particles of…

其他凝聚态物理 · 物理学 2011-03-15 N. Boechler , G. Theocharis , Y. Man , P. G. Kevrekidis , C. Daraio

We employ a particle-in-cell Monte Carlo collision/particle-particle particle-mesh (PIC-MCC/PPPM) simulation to study the plasma flow around and the charge distribution of a three-dimensional dust cluster in the sheath of a low-pressure rf…

等离子体物理 · 物理学 2018-04-18 J. Schleede , L. Lewerentz , F. X. Bronold , R. Schneider , H. Fehske

Colloidal particles can self-assemble into various ordered structures in fluid flows that have potential applications in biomedicine, materials synthesis and encryption. These dynamic processes are also of fundamental interest for probing…

软凝聚态物质 · 物理学 2017-01-31 Yu Abe , Bo Zhang , Leonardo Gordillo , Alireza Mohammad Karim , Lorraine F. Francis , Xiang Cheng

We study the Bloch oscillation of elastic waves in a chain composed of hollow elliptical cylinders (HECs). These HECs are 3D-printed in different wall thicknesses and are arranged to form a graded chain. We find that the frequency band…

应用物理 · 物理学 2019-03-27 Hyunryung Kim , Xiaotian Shi , Eunho Kim , Jinkyu Yang

Using advanced lattice methods in Quantum Chromodynamics, three distinct scales are established in the excitation spectrum of the gluon field around a static quark-antiquark pair as the color source separation R is varied. On the shortest…

高能物理 - 格点 · 物理学 2008-11-26 K. Jimmy Juge , Julius Kuti , Colin Morningstar

The possibility to detect cosmic strings -- topological defects of early Universe, by means of wave effects in gravitational lensing is discussed. To find the optimal observation conditions, we define the hyperbolic-shaped Fresnel…

宇宙学与河外天体物理 · 物理学 2017-05-05 Isabel Fernández-Núñez , Oleg Bulashenko

We study the boundary state associated with the decay of an unstable D-brane with uniform electric field, 1>e>0 in the string units. Compactifying the D-brane along the direction of the electric field, we find that the decay process is…

高能物理 - 理论 · 物理学 2009-11-10 Michael Gutperle , Piljin Yi

Cosmic strings can arise in hidden sector models with a spontaneously broken Abelian symmetry group. We have studied the couplings of the Standard Model fields to these so-called dark strings in the companion paper. Here we survey the…

高能物理 - 唯象学 · 物理学 2015-06-23 Andrew J. Long , Tanmay Vachaspati

In a dusty plasma, an impulsively generated shock, i.e., blast wave, was observed to decay less than would be expected due to gas friction alone. In the experiment, a single layer of microparticles was levitated in a radio-frequency…

等离子体物理 · 物理学 2020-12-02 Anton Kananovich , J. Goree

Planet-forming discs in sufficiently strong UV environments lose gas in external photoevaporative winds. Dust can also be entrained within these winds, which has consequences for the possible solids reservoir for planet formation, and…

地球与行星天体物理 · 物理学 2025-04-09 S. Paine , T. J. Haworth , R. P. Nelson

Cosmic strings are predicted in many models beyond the Standard Model of particle physics. In models which admit strings, a network of strings will inevitably be formed in a phase transition in the early universe and will persist to the…

宇宙学与河外天体物理 · 物理学 2015-06-12 Robert H. Brandenberger

We use a DEM simulation and analytical considerations to study the dynamics of a self-energised object, modelled as a disc, oscillating horizontally within a two-dimesional bed of denser and smaller particles. We find that, for given…

软凝聚态物质 · 物理学 2017-01-04 Ling Huang , Xianwen Ran , Raphael Blumenfeld

We performed numerical simulations of the common envelope (CE) interaction between thermally-pulsing asymptotic giant branch (AGB) stars of 1.7~\Msun and 3.7~\Msun, respectively, and a 0.6~\Msun compact companion. We use tabulated equations…

We model the behaviour of a single colloid embedded in a cross-linked polymer gel, immersed in a viscous background fluid. External fields actuate the particle into a periodic motion, which deforms the embedding matrix and creates a local…

软凝聚态物质 · 物理学 2022-11-09 Guido L. A. Kusters , Cornelis Storm , Paul van der Schoot