Zobrazeno 1 - 10
of 1 038
pro vyhledávání: '"C A Olson"'
Publikováno v:
Phys. Rev. E 95, 030902 (2017)
We numerically examine clogging transitions for bidisperse disks flowing through a two dimensional periodic obstacle array. We show that clogging is a probabilistic event that occurs through a transition from a homogeneous flowing state to a heteroge
Externí odkaz:
http://arxiv.org/abs/1612.03123
Publikováno v:
Phys. Rev. B 96, 094516 (2017)
Disordered hyperuniformity is a state of matter which has isotropic liquid like properties while simultaneously having crystalline like properties such as little variation in the density fluctuations over long distances. Such states arise for the pac
Externí odkaz:
http://arxiv.org/abs/1611.01532
Publikováno v:
Phys. Rev. E 95, 012607 (2017)
We numerically examine the transport of an assembly of active run-and-tumble disks interacting with a traveling wave substrate. We show that as a function of substrate strength, wave speed, disk activity, and disk density, a variety of dynamical phas
Externí odkaz:
http://arxiv.org/abs/1611.00349
Publikováno v:
Phys. Rev. E 95, 032606 (2017)
Depinning and nonequilibrium transitions within sliding states in systems driven over quenched disorder arise across a wide spectrum of size scales ranging from atomic friction at the nanoscale, flux motion in type-II superconductors at the mesoscale
Externí odkaz:
http://arxiv.org/abs/1610.07631
Publikováno v:
Phys. Rev. B 95, 104401 (2017)
We show that ac driven skyrmions interacting with an asymmetric substrate provide a realization of a new class of ratchet system which we call a vector ratchet that arises due to the effect of the Magnus term on the skyrmion dynamics. In a vector rat
Externí odkaz:
http://arxiv.org/abs/1609.08206
Publikováno v:
Sci. Rep. 7, 651 (2017)
We demonstrate the use of an external field to stabilize and control defect lines connecting topological monopoles in spin ice. For definiteness we perform Brownian dynamics simulations with realistic units mimicking experimentally realized artificia
Externí odkaz:
http://arxiv.org/abs/1609.02129
Publikováno v:
Phys. Rev. B 94, 144405 (2016)
Magnetic skyrmions have been receiving growing attention as potential information storage and magnetic logic devices since an increasing number of materials have been identified that support skyrmion phases. Explorations of artificial frustrated syst
Externí odkaz:
http://arxiv.org/abs/1608.06733
Structural Transitions and Hysteresis in Clump- and Stripe-Forming Systems Under Dynamic Compression
Publikováno v:
Soft Matter 12, 9549 (2016)
Using numerical simulations, we study the dynamical evolution of particles interacting via competing long-range repulsion and short-range attraction in two dimensions. The particles are compressed using a time-dependent quasi-one dimensional trough p
Externí odkaz:
http://arxiv.org/abs/1608.06200
Publikováno v:
J. Chem. Phys. 146, 204903 (2017)
We show that sterically interacting self-propelled disks in the presence of random pinning substrates exhibit transitions among a variety of different states. In particular, from a phase separated cluster state, the disks can spread out and homogeneo
Externí odkaz:
http://arxiv.org/abs/1608.05323
Publikováno v:
Phys. Rev. E 95, 042902 (2017)
We numerically examine the dynamic phases and pattern formation of two-dimensional monodisperse repulsive disks driven over random quenched disorder. We show that there is a series of distinct dynamic regimes as a function of increasing drive, includ
Externí odkaz:
http://arxiv.org/abs/1608.04397