51 citations · 126 across the 10 of their papers we have counts for
10 papers
Self-Healing Small-Scale Swimmers
Emil Karshalev, Cristian Silva-Lopez, Kyle Chan +6
Herein, self-healing small-scale swimmers capable of autonomous propulsion and on-the-fly structural recovery are described. The new strategy instantaneously restores the functiona…
Triangular Ising antiferromagnet through a fermionic lens, part 2: information-theoretic aspects of zero-temperature states on cylinders
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
A classical lattice spin model wrapped on a cylinder is profitably viewed as a chain of rings of spins. From that perspective, mutual information between ring configurations plays…
Classical triangular lattice antiferromagnetic Ising model as a free-fermion/superconductor system
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
We present a treatment of the triangular lattice antiferromagnetic Ising model (TAFIM) based on a small number of elementary ideas common to statistical and solid-state physics. Th…
Extrapolation theory for Stokes flow past a deformed sphere
Amir Nourhani, Paul E. Lammert
We formulate a method for computing Stokes flow past a highly deformed sphere with arbitrarily defined surface velocity. The fundamental ingredient is an explicit extrapolation ope…
Communicating through a geometrically frustrated channel
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
We propose an intuitively appealing formulation of the zero-temperature triangular lattice Ising antiferromagnet (TIAFM) on a cylinder as a model of noninteracting fermions hopping…
Spiral diffusion of rotating self-propellers with stochastic perturbation
Amir Nourhani, Stephen J. Ebbens, John G. Gibbs +1
Translationally diffusive behavior arising from the combination of orientational diffusion and powered motion at microscopic scales is a known phenomenon, but the peculiarities of…
Bypassing slip velocity: rotational and translational velocities of autophoretic colloids in terms of surface flux
Paul E. Lammert, Vincent H. Crespi, Amir Nourhani
A standard approach to propulsion velocities of autophoretic colloids with thin interaction layers uses a reciprocity relation applied to the slip velocity. But the surface flux (c…
Efficacy of self-phoretic colloids and microswimmers
Amir Nourhani, Paul E. Lammert
Within a unified formulation, encompassing self-electrophoresis, self-diffusiophoresis, and self-thermophoresis, we provide a simple integral kernel transforming the relevant surfa…
Gaussian Memory in Kinematic Matrix Theory for Self-Propellers
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
We extend the kinematic matrix ("kinematrix") formalism [Phys. Rev. E 89, 062304 (2014)], which via simple matrix algebra accesses ensemble properties of self-propellers influenced…
Kinematic matrix theory and universalities in self-propellers and active swimmers
Amir Nourhani, Paul E. Lammert, Ali Borhan +1
We describe an efficient and parsimonious matrix-based theory for studying the ensemble behavior of self-propellers and active swimmers, such as nanomotors or motile bacteria, that…