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Electroadhesion for soft adhesive pads and robotics: theory and
numerical results: Soft adhesive pads are needed for many robotics applications, and one
approach is based on electroadhesion. Here we present a general analytic model
and numerical results for electroadhesion for soft solids with arbitrary
time-dependen... | cond-mat_soft |
Charge-induced conformational changes of dendrimers: We study the effect of chargeable monomers on the conformation of dendrimers
of low generation by computer simulations, employing bare Coulomb interactions.
The presence of the latter leads to an increase in size of the dendrimer due to
a combined effect of electrost... | cond-mat_soft |
Large frequency range of negligible transmission in 1D photonic quantum
well structures: We show that it is possible to enlarge the range of low transmission in 1D
photonic crystals by using photonic quantum well structures. If a defect is
introduced in the photonic quantum well structures, defect modes with a very
h... | cond-mat_soft |
Dielectric behaviors of corrugated membranes: We have employed our recently developed Green's function formalism to study
the dielectric behavior of a model membrane, formed by two periodic interfaces
separating two media of different dielectric constants. The Maxwell's equations
are converted into a surface integral e... | cond-mat_soft |
The effect of attractions on the local structure of liquids and
colloidal fluids: We revisit the role of attractions in liquids and apply these concepts to
colloidal suspensions. Two means are used to investigate the structure; the
pair correlation function and a recently developed topological method. The
latter iden... | cond-mat_soft |
A Knowledge-driven Physics-Informed Neural Network model; Pyrolysis and
Ablation of Polymers: In aerospace applications, multiple safety regulations were introduced to
address associated with pyrolysis. Predictive modeling of pyrolysis is a
challenging task since multiple thermo-chemo-mechanical laws need to be
concu... | cond-mat_soft |
A Thermodynamic Model for Receptor Clustering: Intracellular signaling often arises from ligand-induced oligomerization of
cell surface receptors. This oligomerization or clustering process is
fundamentally a cooperative behavior between near-neighbor receptor molecules;
the properties of this cooperative process clear... | cond-mat_soft |
Exactly solvable model for self-assembly of hard core - soft shell
particles at interfaces: A lattice model with soft repulsion followed by attraction is developed for a
monolayer of hybrid core-shell particles self-assembling at an interface. The
model is solved exactly in one dimension. One, two or three periodic s... | cond-mat_soft |
Spreading of Fluids on Solids Under Pressure: Effect of Slip: Spreading of different types of fluid on substrates under an impressed force
is an interesting problem. Here we study spreading of four fluids, having
different hydrophilicity and viscosity on two substrates - glass and perspex,
under an external force. The ... | cond-mat_soft |
Adhesion of membranes with competing specific and generic interactions: Biomimetic membranes in contact with a planar substrate or a second membrane
are studied theoretically. The membranes contain specific adhesion molecules
(stickers) which are attracted by the second surface. In the absence of
stickers, the trans--i... | cond-mat_soft |
Chiral Twisting of a Smectic-A Liquid Crystal: Chiral twisting of the molecular orientation within the layer of a smectic-A
liquid crystal has been investigated using circular dichroism spectroscopy. The
results indicate that a rotation of the layers away from the alignment
direction is induced by the surface electrocl... | cond-mat_soft |
Quantification of plasticity via particle dynamics above and below yield
in a 2D jammed suspension: Failure of amorphous materials is characterized by the emergence of
dissipation. The connection between particle dynamics, dissipation, and overall
material rheology, however, has still not been elucidated. Here, we ta... | cond-mat_soft |
Computational Study of Mechanochemical Activation in Nanostructured
Triblock Copolymers: Force-driven chemical reactions have emerged as an attractive platform for
diverse applications in polymeric materials. However, the network topologies
necessary for efficiently transducing macroscopic forces to the molecular sca... | cond-mat_soft |
Gel rupture in a dynamic environment: Hydrogels have had a profound impact in the fields of tissue engineering,
drug delivery, and materials science as a whole. Due to the network
architecture of these materials, imbibement with water often results in uniform
swelling and isotropic expansion which scales with the degre... | cond-mat_soft |
Decoupling of dipolar and hydrophobic motions in biological membranes: Cells use homeostatic mechanisms to maintain an optimal composition of
distinct types of phospholipids in cellular membranes. The hydrophilic dipolar
layer at the membrane interface, composed of phospholipid headgroups, regulates
the interactions be... | cond-mat_soft |
Chiral active matter: microscopic `torque dipoles' have more than one
hydrodynamic description: Many biological systems, such as bacterial suspensions and actomyosin
networks, form polar liquid crystals. These systems are `active' or
far-from-equilibrium, due to local forcing of the solvent by the constituent
particl... | cond-mat_soft |
Non-local kinetic theory of inhomogeneous liquid mixtures: In this work we investigate the dynamical properties of a mixture of mutually
interacting spherical molecules of different masses and sizes. From an analysis
of the microscopic laws governing the motion of the molecules we derive a set
of non-local self-consist... | cond-mat_soft |
Mechanical rejuvenation and over-aging in the soft glassy rheology model: Mechanical rejuvenation and over-aging of glasses is investigated through
stochastic simulations of the soft glassy rheology (SGR) model. Strain- and
stress-controlled deformation cycles for a wide range of loading conditions are
analyzed and com... | cond-mat_soft |
Network effects lead to self-organization in metabolic cycles of
self-repelling catalysts: Mixtures of particles that interact through phoretic effects are known to
aggregate if they belong to species that exhibit attractive self-interactions.
We study self-organization in a model metabolic cycle composed of three sp... | cond-mat_soft |
Anti-Diffusion in an Algae-Bacteria Microcosm: Photosynthesis,
Chemotaxis, and Expulsion: In Nature there are significant relationships known between microorganisms
from two kingdoms of life, as in the supply of vitamin B$_{12}$ by bacteria to
algae. Such interactions motivate general investigations into the
spatio-t... | cond-mat_soft |
Computational Study of Mechanochemical Activation in Nanostructured
Triblock Copolymers: Force-driven chemical reactions have emerged as an attractive platform for
diverse applications in polymeric materials. However, the network topologies
necessary for efficiently transducing macroscopic forces to the molecular sca... | cond-mat_soft |
Diffusion of an Inhomogeneous Vortex Tangle: The spatial diffusion of an inhomogeneous vortex tangle is studied
numerically with the vortex filament model. A localized initial tangle is
prepared by applying a counterflow, and the tangle is allowed to diffuse freely
after the counterflow is turned off. Comparison with t... | cond-mat_soft |
Electrochemically controlled polymeric device: a memristor (and more)
found two years ago: We report the fabrication and properties of a polymeric memristor, i.e. an
electronic element with memory of its previous history. We show how this
element can be viewed as a functional analog of a synaptic junction and how it
... | cond-mat_soft |
Mixtures of Hard Ellipsoids and Spheres: Stability of the Nematic Phase: The stability of liquid crystal phases in presence of small amount of
non-mesogenic impurities is of general interest for a large spectrum of
technological applications and in the theories of binary mixtures. Starting
from the known phase diagram ... | cond-mat_soft |
Effective mass overshoot in single degree of freedom mechanical systems
with a particle damper: We study the response of a single degree of freedom mechanical system
composed of a primary mass, M, a linear spring, a viscous damper and a particle
damper. The particle damper consists in a prismatic enclosure of variabl... | cond-mat_soft |
Two-Time Correlations for Probing the Aging Dynamics of Jammed Colloids: We present results for the aging dynamics of a jammed 2D colloidal system
obtained with molecular dynamics simulations. We performed extensive
simulations to gather detailed statistics about rare rearrangement events. With
a simple criterion for i... | cond-mat_soft |
Colloidal supported lipid bilayers for self-assembly: The use of colloidal supported lipid bilayers (CSLBs) has recently been
extended to create colloidal joints, that - in analogy to their macroscopic
counterparts - can flexibly connect colloidal particles. These novel elements
enable the assembly of structures with i... | cond-mat_soft |
Preliminary experiments demonstrating a "directed" Maxwell's granular
demon: In this paper, we design a system of two symmetrical containers communicated
by an aperture, in which a granular gas of glass spheres is created by shaking
laterally the whole system in a planetary mill. If the aperture consists in a
symmetr... | cond-mat_soft |
Nonlinear dynamics and rheology of active fluids: simulations in two
dimensions: We report simulations of a continuum model for (apolar, flow aligning) active
fluids in two dimensions. Both free and anchored boundary conditions are
considered, at parallel confining walls that are either static or moving at
fixed rela... | cond-mat_soft |
Two-dimensional skyrmions and other solitonic structures in
confinement-frustrated chiral nematics: We explore spatially localized solitonic configurations of a director field,
generated using optical realignment and laser-induced heating, in frustrated
chiral nematic liquid crystals confined between substrates with ... | cond-mat_soft |
Non-Equilibrium in Adsorbed Polymer Layers: High molecular weight polymer solutions have a powerful tendency to deposit
adsorbed layers when exposed to even mildly attractive surfaces. The
equilibrium properties of these dense interfacial layers have been extensively
studied theoretically. A large body of experimental ... | cond-mat_soft |
Thermomechanics of DNA: A theory for thermomechanical behavior of homogeneous DNA at thermal
equilibrium predicts critical temperatures for denaturation under torque and
stretch, phase diagrams for stable B--DNA, supercoiling, optimally stable
torque, and the overstretching transition as force-induced DNA melting.
Agre... | cond-mat_soft |
How roughness affects the depletion mechanism: We develop a simple model, in the spirit of the Asakura-Oosawa theory, able
to describe the effects of surface roughness on the depletion potential as a
function of a small set of parameters. The resulting explicit expressions are
easily computed, without free parameters, ... | cond-mat_soft |
Effect of topology on dynamics of knots in polymers under tension: We use computer simulations to compare the dynamical behaviour of torus and
even-twist knots in polymers under tension. The knots diffuse through a
mechanism similar to reptation. Their friction coefficients grow linearly with
average knot length for bo... | cond-mat_soft |
Stress correlations in glasses: We rigorously establish that, in disordered three-dimensional (3D) isotropic
solids, the stress autocorrelation function presents anisotropic terms that
decay as $1/r^3$ at long-range, with $r$ the distance, as soon as either
pressure or shear stress fluctuations are normal. By normal, w... | cond-mat_soft |
A Bhatnagar-Gross-Krook-like Model Kinetic Equation for a Granular Gas
of Inelastic Rough Hard Spheres: The Boltzmann collision operator for a dilute granular gas of inelastic rough
hard spheres is much more intricate than its counterpart for inelastic smooth
spheres. Now the one-body distribution function depends no... | cond-mat_soft |
The cage effect in systems of hard spheres: The cage effect is generally invoked when discussing the delay in the decay
of time correlation functions of dense fluids. In an attempt to examine the
role of caging more closely we consider the spread of the displacement
distributions of Brownian particles. These distributi... | cond-mat_soft |
Likely striping in stochastic nematic elastomers: For monodomain nematic elastomers, we construct generalised elastic-nematic
constitutive models combining purely elastic and neoclassical-type
strain-energy densities. Inspired by recent developments in stochastic
elasticity, we extend these models to stochastic-elastic... | cond-mat_soft |
Light-Induced Manipulation of Passive and Active Microparticles: We consider sedimented at a solid wall particles that are immersed in water
containing small additives of photosensitive ionic surfactants. It is shown
that illumination with an appropriate wavelength, a beam intensity profile,
shape and size could lead t... | cond-mat_soft |
Effect of Branching on Phase Behaviors of ABC Triblock Copolymers in
Nonfrustrated Systems: The phase behavior of linear dendritic triblock copolymer melts(AB2C4) is
studied by self-consistent-field theory (SCFT) in order to find the effects of
branching on the phase behavior of ABC linear triblock copolymer melts. W... | cond-mat_soft |
Competition between Born solvation, dielectric exclusion, and Coulomb
attraction in spherical nanopores: The recent measurement of a very low dielectric constant, $\epsilon$, of
water confined in nanometric slit pores leads us to reconsider the physical
basis of ion partitioning into nanopores. For confined ions in c... | cond-mat_soft |
Aging of CKN: Modulus versus conductivity analysis: It was recently reported that the electrical modulus peaks narrows upon
annealing of the ionic system CKN [Paluch et al., Phys. Rev. Lett. 110, 015702
(2013)], which was interpreted as providing evidence of dynamic heterogeneity
of this glass-forming liquid. An analys... | cond-mat_soft |
Force-induced rupture of a DNA duplex: The rupture of double-stranded DNA under stress is a key process in
biophysics and nanotechnology. In this article we consider the shear-induced
rupture of short DNA duplexes, a system that has been given new importance by
recently designed force sensors and nanotechnological devi... | cond-mat_soft |
Elastic instabilities in a layered cerebral cortex: A revised axonal
tension model for cortex folding: We model the elasticity of the cerebral cortex as a layered material with
bending energy along the layers and elastic energy between them in both planar
and polar geometries. The cortex is also subjected to axons pu... | cond-mat_soft |
Escherichia coli as a model active colloid: a practical introduction: The flagellated bacterium Escherichia coli is increasingly used
experimentally as a self-propelled swimmer. To obtain meaningful, quantitative
results that are comparable between different laboratories, reproducible
protocols are needed to control, `... | cond-mat_soft |
Defect turbulence in a dense suspension of polar, active swimmers: We study the effects of inertia in dense suspensions of polar swimmers. The
hydrodynamic velocity field and the polar order parameter field describe the
dynamics of the suspension. We show that a dimensionless parameter $R$ (ratio
of the swimmer self-ad... | cond-mat_soft |
Isotropic-nematic interfacial tension of hard and soft rods: application
of advanced grand canonical biased sampling techniques: Coexistence between the isotropic and the nematic phase in suspensions of
rods is studied using grand canonical Monte Carlo simulations with a bias on
the nematic order parameter. The biasi... | cond-mat_soft |
Modelling Polymer Self Diffusion: An Alternative Model to Reptation: Herein an alternative model to reptation to describe concentrated polymer
dynamics is developed. The model assumes that the chains act as blobs that are
able to diffuse past each other in a compressed state. Allowing that the local
viscosity experienc... | cond-mat_soft |
Strongly inelastic granular gases: The expansion of the velocity distribution function for the homogeneous
cooling state (HCS) in a Sonine polynomial series around a Maxwellian is shown
to be divergent, though Borel resummable. A convergent expansion for the HCS
has been devised and employed to obtain the HCS velocity ... | cond-mat_soft |
Rain water transport and storage in a model sandy soil with hydrogel
particle additives: We study rain water infiltration and drainage in a dry model sandy soil with
superabsorbent hydrogel particle additives by measuring the mass of retained
water for non-ponding rainfall using a self-built 3D laboratory set-up. In ... | cond-mat_soft |
Role of rotational inertia for collective phenomena in active matter: We investigate the effect of rotational inertia on the collective phenomena
of underdamped active systems and show that the increase of the moment of
inertia of each particle favors non-equilibrium phase coexistence, known as
motility induced phase s... | cond-mat_soft |
Tension dynamics in semiflexible polymers. Part II: Scaling solutions
and applications: In Part I of this contribution, a systematic coarse-grained description of
the dynamics of a weakly-bending semiflexible polymer was developed. Here, we
discuss analytical solutions of the established deterministic partial
integro... | cond-mat_soft |
Flexible polymer confined inside a cone-shaped nano-channel: Nano-scale confinement of polymer in cone-shaped geometries occurs in many
experimental situations. A flexible polymer confined in a cone-shaped
nano-channel is studied theoretically and using molecular dynamics simulations.
Distribution of the monomers insid... | cond-mat_soft |
Simultaneous concentration and velocity maps in particle suspensions
under shear from rheo-ultrasonic imaging: We extend a previously developed ultrafast ultrasonic technique [Gallot et
al., Rev. Sci. Instrum. 84, 045107 (2013)] to concentration field measurements
in non-Brownian particle suspensions under shear. The... | cond-mat_soft |
Polymer translocation out of confined environments: We consider the dynamics of polymer translocation out of confined
environments. Analytic scaling arguments lead to the prediction that the
translocation time scales like $\tau\sim
N^{\beta+\nu_{2D}}R^{1+(1-\nu_{2D})/\nu}$ for translocation out of a planar
confinement ... | cond-mat_soft |
Landau theory of bending-to-stretching transition: Transition from bending-dominated to stretching-dominated elastic response in
semi-flexible fibrous networks plays an important role in the mechanical
behavior of cells and tissues. It is induced by changes in network connectivity
and relies on construction of new cros... | cond-mat_soft |
The vortex-driven dynamics of droplets within droplets: Understanding the fluid-structure interaction is crucial for an optimal
design and manufacturing of soft mesoscale materials. Multi-core emulsions are
a class of soft fluids assembled from cluster configurations of deformable
oil-water double droplets (cores), oft... | cond-mat_soft |
Absence of Dipole Glass Transition for Randomly Dilute Classical Ising
Dipoles: Dilute dipolar systems in three dimensions are expected to undergo a spin
glass transition as the temperature decreases. Contrary to this, we find from
Wang-Landau Monte Carlo simulations that at low concentrations $x$, dipoles
randomly p... | cond-mat_soft |
Self-assembled multi-layer simple cubic photonic crystals of oppositely
charged colloids in confinement: Designing and fabricating self-assembled open colloidal crystals have become
one major direction in soft matter community because of many promising
applications associated with open colloidal crystals. However, mo... | cond-mat_soft |
Visualizing the strain evolution during the indentation of colloidal
glasses: We use an analogue of nanoindentation on a colloidal glass to elucidate the
incipient plastic deformation of glasses. By tracking the motion of the
individual particles in three dimensions, we visualize the strain field and
glass structure ... | cond-mat_soft |
Drag Law of Two Dimensional Granular Fluids: The drag force law acting on a moving circular disk in a two-dimensional
granular medium is analyzed based on the discrete element method (DEM). It is
remarkable that the drag force on the moving disk in moderate dense and pure
two-dimensional granular medium can be well rep... | cond-mat_soft |
Positronium-positronium interaction: Resonance, scattering length, and
Bose-Einstein condensation: The low-energy scattering of ortho positronium (Ps) by ortho Ps has been
studied in a full quantum mechanical coupled-channel approach. In the singlet
channel (total spin $s_T=0$) we find S- and P-wave resonances at 3.3... | cond-mat_soft |
Layering and position-dependent diffusive dynamics of confined fluids: We study the diffusive dynamics of a hard-sphere fluid confined between
parallel smooth hard walls. The position-dependent diffusion coefficient normal
to the walls is larger in regions of high local packing density. High density
regions also have t... | cond-mat_soft |
Josephson Current Flowing in Cyclically Coupled Bose-Einstein
Condensates: The Josephson effect in cyclically coupled Bose-Einstein condensates is
studied theoretically. We analyze the simultaneous Gross-Pitaevskii equations
with coupling terms between adjacent condensates. Depending on the initial
relative phases be... | cond-mat_soft |
Comment on "Minimal size of a barchan dune": It is now an accepted fact that the size at which dunes form from a flat sand
bed as well as their `minimal size' scales on the flux saturation length. This
length is by definition the relaxation length of the slowest mode toward
equilibrium transport. The model presented by... | cond-mat_soft |
Simulating structured fluids with tensorial viscoelasticity: We consider an immersed elastic body that is actively driven through a
structured fluid by a motor or an external force. The behavior of such a system
generally cannot be solved analytically, necessitating the use of numerical
methods. However, current numeri... | cond-mat_soft |
Scaling in rupture of polymer chains: We consider the rupture dynamics of a homopolymer chain pulled at one end at
a constant loading rate r. Compared to single bond breaking, the existence of
the chain introduces two new aspects into rupture dynamics: the non-Markovian
aspect in the barrier crossing and the slow-down ... | cond-mat_soft |
Photocontrol of Protein Conformation in a Langmuir Monolayer: We report a method to control the conformation of a weak polyampholyte (the
protein $\beta$-casein) in Langmuir monolayers by light, even though the
protein is not photosensitive. Our approach is to couple the monolayer state to
a photochemical reaction exci... | cond-mat_soft |
Effect of shape anisotropy on the phase diagram of the Gay-Berne fluid: We have used the density functional theory to study the effect of molecular
elongation on the isotropic-nematic, isotropic-smectic A and nematic-smectic A
phase transitions of a fluid of molecules interacting via the Gay-Berne
intermolecular potent... | cond-mat_soft |
Nonlinear modes disentangle glassy and Goldstone modes in structural
glasses: One outstanding problem in the physics of glassy solids is understanding the
statistics and properties of the low-energy excitations that stem from the
disorder that characterizes these systems' microstructure. In this work we
introduce a f... | cond-mat_soft |
Bond formation and slow heterogeneous dynamics in adhesive spheres with
long--ranged repulsion: Quantitative test of Mode Coupling Theory: A colloidal system of spheres interacting with both a deep and narrow
attractive potential and a shallow long-ranged barrier exhibits a prepeak in
the static structure factor. Thi... | cond-mat_soft |
Transformation between elastic dipoles, quadrupoles, octupoles and
hexadecapoles driven by surfactant self-assembly in nematic emulsion: Emulsions comprising isotropic fluid drops within a nematic host are of
interest for applications ranging from biodetection to smart windows, which
rely on changes of molecular alig... | cond-mat_soft |
Equilibrating temperature-like variables in jammed granular subsystems: Although jammed granular systems are athermal, several thermodynamic-like
descriptions have been proposed which make quantitative predictions about the
distribution of volume and stress within a system and provide a corresponding
temperature-like v... | cond-mat_soft |
Magnetization of polydisperse colloidal ferrofluids: Effect of
magnetostriction: We exploit magnetostriction in polydisperse ferrofluids in order to generate
nonlinear responses, and apply a thermodynamical method to derive the desired
nonlinear magnetic susceptibility. For an ideal gas, this method has been
demonstr... | cond-mat_soft |
Conformation of a Polyelectrolyte Complexed to a Like-Charged Colloid: We report results from a molecular dynamics (MD) simulation on the
conformations of a long flexible polyelectrolyte complexed to a charged sphere,
\textit{both negatively charged}, in the presence of neutralizing counterions
in the strong Coulomb co... | cond-mat_soft |
Reaction Kinetics in Polymer Melts: We study the reaction kinetics of end-functionalized polymer chains dispersed
in an unreactive polymer melt. Starting from an infinite hierarchy of coupled
equations for many-chain correlation functions, a closed equation is derived
for the 2nd order rate constant $k$ after postulati... | cond-mat_soft |
Optimized Large Hyperuniform Binary Colloidal Suspensions in Two
Dimensions: The creation of disordered hyperuniform materials with potentially
extraordinary optical properties requires a capacity to synthesize large
samples that are effectively hyperuniform down to the nanoscale. Motivated by
this challenge, we prop... | cond-mat_soft |
Role of reversibility in viral capsid growth: A paradigm for
self-assembly: Self-assembly at submicroscopic scales is an important but little understood
phenomenon. A prominent example is virus capsid growth, whose underlying
behavior can be modeled using simple particles that assemble into polyhedral
shells. Molecul... | cond-mat_soft |
Martini coarse-grained model for clay-polymer nanocomposites: We have developed a coarse-grained (CG) model of a polymer-clay system
consisting of organically modified montmorillonite nanoclay as the nanoparticle
in accordance with the MARTINI forcefield. We have used mechanical properties
and cleavage free energy of c... | cond-mat_soft |
Thermodynamic consistency between the energy and virial routes in the
mean spherical approximation for soft potentials: It is proven that, for any soft potential characterized by a finite Fourier
transform $\widetilde{\phi}(k)$, the virial and energy thermodynamic routes are
equivalent for approximations such that th... | cond-mat_soft |
Wetting, Spreading, and Adsorption on Randomly Rough Surfaces: The wetting properties of solid substrates with customary (i.e., macroscopic)
random roughness are considered as a function of the microscopic contact angle
of the wetting liquid and its partial pressure in the surrounding gas phase.
Analytic expressions ar... | cond-mat_soft |
Transitional cylindrical swirling flow in presence of a flat free
surface: This article is devoted to the study of an incompressible viscous flow of a
fluid partly enclosed in a cylindrical container with an open top surface and
driven by the constant rotation of the bottom wall. Such type of flows belongs
to a group... | cond-mat_soft |
Guiding microscale swimmers using teardrop-shaped posts: The swimming direction of biological or artificial microscale swimmers tends
to be randomised over long time-scales by thermal fluctuations. Bacteria use
various strategies to bias swimming behaviour and achieve directed motion
against a flow, maintain alignment ... | cond-mat_soft |
Nucleation of liquid droplets in a fluid with competing interactions: Using a simple density functional theory (DFT) we determine the height of the
free energy barrier for forming a droplet of the liquid phase from the
metastable gas phase for a model colloidal fluid exhibiting competing
interactions. The pair potentia... | cond-mat_soft |
Heterogeneities and Topological Defects in Two-Dimensional Pinned
Liquids: We simulate a model of repulsively interacting colloids on a commensurate
two-dimensional triangular pinning substrate where the amount of heterogeneous
motion that appears at melting can be controlled systematically by turning off
a fraction ... | cond-mat_soft |
Interference of a thermal Tonks gas on a ring: A nonzero temperature generalization of the Fermi-Bose mapping theorem is
used to study the exact quantum statistical dynamics of a one-dimensional gas
of impenetrable bosons on a ring. We investigate the interference produced when
an initially trapped gas localized on one... | cond-mat_soft |
Granular Dynamics during Impact: We study the impact of a projectile onto a bed of 3 mm grains immersed in an
index-matched fluid. Specifically, we vary the amount of prestrain on the
sample, strengthening the force chains within the system. We find this affects
only the prefactor of linear depth-dependent term in the ... | cond-mat_soft |
The Boson Peak and Disorder in Hard Sphere Colloidal Systems: The Boson peak is believed to be the key to the fundamental understanding of
the anomalous thermodynamic properties of glasses, notably the anomalous peak
in the heat capacity at low temperatures; it is believed to be due to an excess
of low frequency vibrat... | cond-mat_soft |
Vector Formalism for Active Nematics in Two Dimensions: Specific features of two-dimensional nematodynamics give rise to shortfalls
of the tensor representation of the nematic order parameter commonly used in
computations, especially in theory of active matter. The alternative
representation in terms of the vector orde... | cond-mat_soft |
Universality in Driven and Equilibrium Hard Sphere Liquid Dynamics: We demonstrate that the time evolution of the van Hove dynamical pair
correlation function is governed by adiabatic forces that arise from the free
energy and by superadiabatic forces that are induced by the flow of the van
Hove function. The superadia... | cond-mat_soft |
Kinetics of isotropic to string-like phase switching in
electrorheological fluids of nanocubes: Applying an electric field to polarisable colloidal particles, whose
permittivity differs from that of the dispersing medium, generates induced
dipoles that promote the formation of string-like clusters and ultimately alte... | cond-mat_soft |
Surface phase transitions in foams and emulsions: Surface phase transitions in surfactant adsorption layers are known to affect
the dynamic properties of foams and to induce surface nucleation in freezing
emulsion drops. Recently, these transitions were found to play a role in
several other phenomena, opening new oppor... | cond-mat_soft |
Hydrodynamic response of a surfactant-laden interface to a radial flow: We study the features of a radial Stokes flow due to a submerged jet directed
toward a liquid-air interface. The presence of surface-active impurities
confers to the interface an in-plane elasticity that resists the incident flow.
Both analytical a... | cond-mat_soft |
Universality and stability phase-diagram of two-dimensional brittle
fracture: The two-dimensional oscillatory crack instability, experimentally observed in
a class of brittle materials under strongly dynamic conditions, has been
recently reproduced by a nonlinear phase-field fracture theory. Here we
highlight the uni... | cond-mat_soft |
Ion clustering in aqueous salt solutions near the liquid/vapor interface: Molecular dynamics simulations of aqueous NaCl, KCl, NaI, and KI solutions
are used to study the effects of salts on the properties of the liquid/vapor
interface. The simulations use the models which include both charge transfer
and polarization ... | cond-mat_soft |
A comprehensive continuum theory of structured liquids: We develop a comprehensive continuum model capable of treating both
electrostatic and structural interactions in liquid dielectrics. Starting from
a two-order parameter description in terms of charge density and polarization,
we derive a field-theoretic model gene... | cond-mat_soft |
Phase diagram and melting scenarios of two-dimensional Hertzian spheres: We present computer simulations of a system of purely repulsive soft
colloidal particles interacting via the Hertz potential and constrained to a
two-dimensional plane. This potential describes the elastic interaction of
weakly deformable bodies a... | cond-mat_soft |
Hydrogel menisci: Shape, interaction, and instability: The interface of a soft hydrogel is easily deformed when it is in contact
with particles, droplets or cells. Here we compute the intricate shapes of
hydrogel menisci due to the indentation of point particles. The analysis is
based on a free energy formulation, by w... | cond-mat_soft |
Hourglass of constant weight: In contrast to a still common belief, a steadily flowing hourglass changes
its weight in the course of time. We will show that, nevertheless, it is
possible to construct hourglasses that do not change their weight. | cond-mat_soft |
Mpemba-like effect protocol for granular gases of inelastic and rough
hard disks: We study the conditions under which a Mpemba-like effect emerges in granular
gases of inelastic and rough hard disks driven by a class of thermostats
characterized by the splitting of the noise intensity into translational and
rotationa... | cond-mat_soft |
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