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The specificity and thermal reversibility of DNA interactions have enabled the self-assembly of crystal structures, self-replicating materials and colloidal molecules. Grafting DNA onto liquid interfaces of emulsions leads to exciting new…

Soft Condensed Matter · Physics 2013-10-31 Lang Feng , Lea-Laetitia Pontani , Remi Dreyfus , Paul Chaikin , Jasna Brujic

To understand the formation mechanism of large plumes in solar prominences, we investigate the formation process of two such phenomena. We studied the dynamic and thermal properties of two large plumes using observations from New Vacuum…

Solar and Stellar Astrophysics · Physics 2022-03-14 Jincheng Wang , Xiaoli Yan , Zhike Xue , Liheng Yang , Qiaoling Li , Hechao Chen , Chun Xia , Zhong Liu

We investigate the melting transition of non-supercoiled circular DNA of different lengths, employing Brownian dynamics simulation. In the absence of supercoiling, we find that melting of circular DNA is driven by a large bubble, which…

Soft Condensed Matter · Physics 2024-10-14 Souradeep Sengupta , Somendra M. Bhattacharjee , Garima Mishra

The familiar process of bubbles generated via breaking waves in the ocean is foundational to many natural and industrial applications. In this process, large pockets of entrained gas are successively fragmented by the ambient turbulence…

Fluid Dynamics · Physics 2024-03-19 Yinghe Qi , Xu Xu , Shiyong Tan , Shijie Zhong , Qianwen Wu , Rui Ni

The process of formation for an ice crystal with elaborate, symmetrical patterns from the water vapor is usually complicated and the corresponding mechanism is still not clear. Here, we experimentally constructed the 3D tubular ice crystals…

Applied Physics · Physics 2020-11-03 Xiaolu Zhu , Zheng Wang

After crossing an initial barrier to break the first base-pair (bp) in double-stranded DNA, the disruption of further bps is characterized by free energies between less than one to a few kT. This causes the opening of intermittent…

Statistical Mechanics · Physics 2015-06-25 Tobias Ambjornsson , Suman K Banik , Michael A Lomholt , Ralf Metzler

Membrane bending is an extensively studied problem from both modeling and experimental perspectives because of the wide implications of curvature generation in cell biology. Many of the curvature generating aspects in membranes can be…

Soft Condensed Matter · Physics 2021-07-21 Arijit Mahapatra , David Saintillan , Padmini Rangamani

Modern quantum technologies in the fields of quantum computing, quantum simulation and quantum metrology require the creation and control of large ensembles of entangled particles. In ultracold ensembles of neutral atoms, highly entangled…

A scheme for non-conditional generation of long-living maximally entangled states between two spatially well separated atoms is proposed. In the scheme, $\Lambda$-type atoms pass a resonator-like equipment of dispersing and absorbing…

Quantum Physics · Physics 2016-08-16 Özgür Çakir , Ho Trung Dung , Ludwig Knöll , Dirk-Gunnar Welsch

Dynamics of DNA bubbles are of interest for both statistical physics and biology. We present exact solutions to the Fokker-Planck equation governing bubble dynamics in the presence of a long-range entropic interaction. The complete meeting…

Statistical Mechanics · Physics 2014-08-11 Vojtěch Kaiser , Tomáš Novotný

The temperature dependence of DNA flexibility is studied in the presence of stretching and unzipping forces. Two classes of models are considered. In one case the origin of elasticity is entropic due to the polymeric correlations, and in…

Soft Condensed Matter · Physics 2016-06-27 Tanmoy Pal , Somendra M. Bhattacharjee

A double-stranded DNA unravels thermally through intermediate denatured bubble segments. Intrinsically, fluctuations ensue at the bubble boundaries from non-equilibrium (NE) energy exchanges with the environment. However, such details gets…

Soft Condensed Matter · Physics 2018-09-21 Keren Jiang , Faheem Khan , Javix Thomas , Arindam Phani , Thomas Thundat

In a companion paper, we develop a theory for the evolution of stellar wind driven bubbles in dense, turbulent clouds. This theory proposes that turbulent mixing at a fractal bubble-shell interface leads to highly efficient cooling, in…

Astrophysics of Galaxies · Physics 2021-06-30 Lachlan Lancaster , Eve C. Ostriker , Jeong-Gyu Kim , Chang-Goo Kim

Breaking waves entrain gas beneath the surface. The wave-breaking process energizes turbulent fluctuations that break bubbles in quick succession to generate a wide range of bubble sizes. Understanding this generation mechanism paves the…

Fluid Dynamics · Physics 2021-02-24 Wai Hong Ronald Chan , Perry Johnson , Parviz Moin

We define and investigate, via numerical analysis, a one dimensional toy-model of a cloud chamber. An energetic quantum particle, whose initial state is a superposition of two identical wave packets with opposite average momentum, interacts…

Quantum Physics · Physics 2023-07-19 R. Carlone , R. Figari , C. Negulescu

We investigate the coalescence of two DNA-bubbles initially located at weak domains and separated by a more stable barrier region in a designed construct of double-stranded DNA. In a continuum Fokker-Planck approach, the characteristic time…

Statistical Mechanics · Physics 2009-06-04 Jonas Nyvold Pedersen , Mikael Sonne Hansen , Tomas Novotny , Tobias Ambjornsson , Ralf Metzler

A general theory of nucleation for colloids and macromolecules in solution is formulated within the context of fluctuating hydrodynamics. A formalism for the determination of nucleation pathways is developed and stochastic differential…

Soft Condensed Matter · Physics 2012-01-23 James F. Lutsko

This review focuses on Direct numerical simulations (DNS) of turbulent flows laden with droplets or bubbles. DNS of these flows are more challenging than those of flows laden with solid particles due to the surface deformation in the…

Fluid Dynamics · Physics 2018-04-10 Said Elghobashi

The formation of small droplets and bubbles in turbulent flows is a crucial process in geophysics and engineering, whose underlying physical mechanism remains a puzzle. In this letter, we address this problem by means of high-resolution…

Turbulence is hard to control. A plethora of experimental methods have been developed to generate this ephemeral state of matter, leading to fundamental insights into its statistical and structural features as well as its onset at ever…

Fluid Dynamics · Physics 2022-11-08 Takumi Matsuzawa , Noah P. Mitchell , Stephane Perrard , William T. M. Irvine
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