Coherent control of plasma dynamics.

Coherent control of plasma dynamics by feedback-optimized wavefront manipulationa)

Simulation Study of Plasma Coherent Structure Dynamics with Three-Dimensional Particle Code

Recently, it was reported that the evidence of non-diffusive (that is, convective) plasma transport from the edge of core plasma to the first wall in magnetic confinement fusion devices. Such a transport is thought to be provided by intermittent filamentary coherent plasma structures “blobs” in scrape-off layer (SOL) [1]. Many theoretical and numerical studies about blob dynamics have been perf...

Ion dynamics and coherent structure formation following laser pulse self-channeling

The propagation of a superintense laser pulse in an underdense, inhomogeneous plasma has been studied numerically by two-dimensional particle-incell simulations on a time scale extending up to several picoseconds. The effects of the ion dynamics following the charge-displacement self-channeling of the laser pulse have been addressed. Radial ion acceleration leads to the “breaking” of the plasma...

Coherent control of non-Markovian photon-resonator dynamics

We study the unitary time evolution of photons interacting with a dielectric resonator using coherent control pulses. We show that non-Markovianity of transient photon dynamics in the resonator subsystem may be controlled to within a photon-resonator transit time. In general, appropriate use of coherent pulses and choice of spatial subregion may be used to create and control a wide range of non...

Small and Adrift with Self-Control: Using the Environment to Improve Autonomy

We present information theoretic search strategies for single and multirobot teams to localize the source of a chemical spill in turbulent flows. In this work, robots rely on sporadic and intermittent sensor readings to synthesize information maximizing exploration strategies. Using the spatial distribution of the sensor readings, robots construct a belief distribution for the source location. ...