The concept of infinite-phase velocity (IPV) is shown as the boundary between positive- and negative-phase velocities (PPVs and NPVs). As materials displaying PPV and NPV are physically realizable, we conjecture that this applies IPV materials as well.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering