101 citations · 1.3k across the 75 of their papers we have counts for
4 papers · 2 filters
Low-energy propagation modes on string network
Naoki Sasakura
We study low-energy propagation modes on string network lattice. Specifically, we consider an infinite two-dimensional regular hexagonal string network and analyze the low frequenc…
Scalar field theories in a Lorentz-invariant three-dimensional noncommutative space-time
Shin'ichi Imai, Naoki Sasakura
We discuss scalar quantum field theories in a Lorentz-invariant three-dimensional noncommutative space-time. We first analyze the one-loop diagrams of the two-point functions, and…
Open membranes in a constant C-field background and noncommutative boundary strings
Shoichi Kawamoto, Naoki Sasakura
We investigate the dynamics of open membrane boundaries in a constant C-field background. We follow the analysis for open strings in a B-field background, and take some approximati…
Space-time uncertainty relation and Lorentz invariance
Naoki Sasakura
We discuss a Lorentz covariant space-time uncertainty relation, which agrees with that of Karolyhazy-Ng-van Dam when an observational time period delta t is larger than the Planck…