40 citations · 163 across the 8 of their papers we have counts for
4 papers · 1 filter
Extending geometrical optics: A Lagrangian theory for vector waves
D. E. Ruiz, I. Y. Dodin
Even when neglecting diffraction effects, the well-known equations of geometrical optics (GO) are not entirely accurate. Traditional GO treats wave rays as classical particles, whi…
Variational principles for dissipative (sub)systems, with applications to the theory of linear dispersion and geometrical optics
I. Y. Dodin, A. I. Zhmoginov, D. E. Ruiz
Applications of variational methods are typically restricted to conservative systems. Some extensions to dissipative systems have been reported too but require ad hoc techniques su…
Ponderomotive dynamics of waves in quasiperiodically modulated media
D. E. Ruiz, I. Y. Dodin
Similarly to how charged particles experience time-averaged ponderomotive forces in high-frequency fields, linear waves also experience time-averaged refraction in modulated media.…
Zonal-flow dynamics from a phase-space perspective
D. E. Ruiz, J. B. Parker, E. L. Shi +1
The wave kinetic equation (WKE) describing drift-wave (DW) turbulence is widely used in studies of zonal flows (ZFs) emerging from DW turbulence. However, this formulation neglects…