74 citations · 146 across the 23 of their papers we have counts for
23 papers
Mechanism of Band Gap Formation in Beam Networks
Kwangmin Lee, Charles Emmett Maher, Katherine A. Newhall +1
Band gaps are commonly attributed to Bragg scattering or local resonance, yet it remains unclear whether these mechanisms govern band gap formation in beam networks. In this work,…
Probing the influence of topological and geometric disorder on the spectrum of the differential Laplacian operator on networks
Charles Emmett Maher, Jeremy L. Marzuola, Katherine A. Newhall
Metric networks are network-shaped, one-dimensional structures on which one can solve differential equations to simulate a wide range of physical systems including conjugated molec…
Effect of Local Topological Changes on Resistance in Spatially-Embedded Disordered Networks
Chenxi Wang, Charles Emmett Maher, Katherine A. Newhall
Disordered materials occur naturally and also provide a broader design space than ordered or crystalline structures. We investigate a two-dimensional disordered network metamateria…
Local Geometric and Transport Properties of Networks that are Generated from Hyperuniform Point Patterns
James V. Raj, Xiaohan Sun, Charles Emmett Maher +2
Hyperuniformity, which is a type of order that is characterized by the suppression of long-range density fluctuations in comparison to the fluctuations in standard disordered syste…
Comparing dragonfly wings to jars of marbles through the lens of hyperuniformity
Karen E. Daniels, Charles Emmett Maher, Katherine A. Newhall +2
When we look at the world around us, we see both organized (also called ordered) and disorganized (also called disordered) arrangements of things. Carefully-tiled floors and brick…
Characterizing the Hyperuniformity of Disordered Network Metamaterials
Charles Emmett Maher, Katherine A. Newhall
Advancements in materials design and manufacturing have allowed for the production of ordered and disordered metamaterials with diverse and novel properties. Hyperuniform two-phase…
Electrical Transport in Tunably-Disordered Metamaterials
Caitlyn Obrero, Mastawal Tirfe, Carmen Lee +4
Naturally occurring materials are often disordered, with their bulk properties being challenging to predict from the structure, due to the lack of underlying crystalline axes. In t…
Memory signatures in path curvature of self-avoidant model particles are revealed by time delayed self mutual information
Katherine Daftari, Katherine Newhall
Emergent behavior in active systems is a complex byproduct of local, often pairwise, interactions. One such interaction is self-avoidance, which experimentally can arise as a respo…
Different relative scalings between transient forces and thermal fluctuations tune regimes of chromatin organization
Anna Coletti, Benjamin Walker, Kerry Bloom +1
Within the nucleus, structural maintenance of chromosome protein complexes, namely condensin and cohesin, create an architecture to facilitate the organization and proper function…
Self-avoidant memory effects on enhanced diffusion in a stochastic model of environmentally responsive swimming droplets
Katherine Daftari, Katherine A. Newhall
Enhanced diffusion is an emergent property of many experimental microswimmer systems that usually arises from a combination of ballistic motion with random reorientations. A subset…
Numerical computation of effective thermal equilibrium in Stochastically Switching Langevin Systems
Benjamin L. Walker, Katherine Newhall
Stochastically switching force terms appear frequently in models of biological systems under the action of active agents such as proteins. The interaction of switching force and Br…
The Hydra String Method: A Novel Means to Explore Potential Energy Surfaces and its Application to Granular Materials
Christopher Moakler, Katherine A. Newhall
Granular materials are a ubiquitous yet ill-understood class of media. Many different approaches and techniques have been developed to understand the many complex behaviors they ex…
Non-local SPDE limits of spatially-correlated-noise driven spin systems derived to sample a canonical distribution
Yuan Gao, Jeremy L. Marzuola, Jonathan Mattingly +1
We study the macroscopic behavior of a stochastic spin ensemble driven by a discrete Markov jump process motivated by the Metropolis-Hastings algorithm where the proposal is made w…
Network Mechanism for Insect Olfaction
Pamela B Pyzza, Katherine A Newhall, Douglas Zhou +2
Early olfactory pathway responses to the presentation of an odor exhibit remarkably similar dynamical behavior across phyla from insects to mammals, and frequently involve transiti…
Limiting Behaviors of High Dimensional Stochastic Spin Ensembles
Yuan Gao, Kay Kirkpatrick, Jeremy Marzuola +2
Lattice spin models in statistical physics are used to understand magnetism. Their Hamiltonians are a discrete form of a version of a Dirichlet energy, signifying a relationship to…
Inferring Information Flow in Spike-train Data Sets using a Trial-Shuffle Method
Benjamin Walker, Katherine Newhall
Understanding information processing in the brain requires the ability to determine the functional connectivity between the different regions of the brain. We present a method usin…
Metastability of the Nonlinear Wave Equation: Insights from Transition State Theory
Katherine A Newhall, Eric Vanden-Eijnden
This paper is concerned with the long-time dynamics of the nonlinear wave equation in one-space dimension, where is a pa…
The Structure of Global Attractors for Dissipative Zakharov Systems with Forcing on the Torus
M. Burak Erdogan, Jeremy L. Marzuola, Katherine A. Newhall +1
The Zakharov system was originally proposed to study the propagation of Langmuir waves in an ionized plasma. In this paper, motivated by earlier work of the first and third authors…
Random polarization dynamics in a resonant optical medium
Katherine A. Newhall, Ethan P. Atkins, Peter R. Kramer +2
Random optical-pulse polarization switching along an active optical medium in the -configuration with spatially disordered occupation numbers of its lower energy sub-level pair…
Averaged equation for energy diffusion on a graph reveals bifurcation diagram and thermally assisted reversal times in spin-torque driven nanomagnets
Katherine Newhall, Eric Vanden-Eijnden
Driving nanomagnets by spin-polarized currents offers exciting prospects in magnetoelectronics, but the response of the magnets to such currents remains poorly understood. We show…
A granocentric model captures the statistical properties of monodisperse random packings
Katherine A. Newhall, Ivane Jorjadze, Eric Vanden-Eijnden +1
We present a generalization of the granocentric model proposed in [Clusel et al., Nature, 2009, 460, 611615] that is capable of describing the local fluctuations inside not only po…
Jamming phase diagram of athermal emulsions with short-range attraction
Ivane Jorjadze, Lea-Laetitia Pontani, Katherine Newhall +1
Using confocal microscopy we investigate the effect of attraction on the packing of polydisperse emulsions under gravity. We find that the distributions of neighbors, coordination…
Projectile-shape dependence of impact craters in loose granular media
K. A. Newhall, D. J. Durian
We report on the penetration of cylindrical projectiles dropped from rest into a dry, noncohesive granular medium. The cylinder length, diameter, density, and tip shape are all exp…