335 citations · 1.4k across the 7 of their papers we have counts for
6 papers
Transitive and Gallai colorings
R. M. Adin, A. Berenstein, J. Greenstein +3
A Gallai coloring of the complete graph is an edge-coloring with no rainbow triangle. This concept first appeared in the study of comparability graphs and anti-Ramsey theory. We in…
Influence of non-conservative optical forces on the dynamics of optically trapped colloidal spheres: The fountain of probability
Yohai Roichman, Bo Sun, Allan Stolarski +1
We demonstrate both experimentally and theoretically that a colloidal sphere trapped in a static optical tweezer does not come to equilibrium, but rather reaches a steady state in…
Characterizing and tracking single colloidal particles with video holographic microscopy
Sang-Hyuk Lee, Yohai Roichman, Gi-Ra Yi +5
We use digital holographic microscopy and Mie scattering theory to simultaneously characterize and track individual colloidal particles. Each holographic snapshot provides enough i…
Optical forces arising from phase gradients
Yohai Roichman, Bo Sun, Yael Roichman +2
We demonstrate both theoretically and experimentally that gradients in the phase of a light field exert forces on illuminated objects, including forces transverse to the direction…
Charge Transport in Non-Diluted Conjugated Polymers
Yohai Roichman, Nir Tessler
We present a unified calculation method for variable range hopping transport with a varying charge concentration and a varying applied electrical field. We demonstrate that the maj…
Generalized Einstein relation for disordered semiconductors - implications for device performance
Yohai Roichman, Nir Tessler
The ratio between mobility and diffusion parameters is derived for a Gaussian-like density of states. This steady-state analysis is expected to be applicable to a wide range of org…