Megahertsides

Megahertsides are a fictional quantitative concept used in speculative physics to describe a dimensionless coupling metric in frequency-driven dynamical systems, particularly dynamic metamaterials and driven quantum platforms. In this framework, a megahertsides (MHS) quantifies how effectively an externally applied drive at frequency f (measured in megahertz) channels energy into targeted spatial or modal states of the system.

The quantity is defined as MHS = (E_target / E_total) × K, where E_target is the energy placed into chosen modes per cycle, E_total is the total input energy per cycle, and K is a normalization constant that depends on the drive frequency and system geometry, chosen so that ideal resonance yields MHS ≈ 1. The unit is dimensionless, providing a convenient figure of merit that can be compared across materials and driving conditions.

Origins and usage: The term was introduced in theoretical discussions of frequency-domain control of material responses in speculative literature; it draws on the intuition behind spectral sidebands and the scaling implied by megahertz drives. In simulations, MHS values typically span from small fractions up to a few units, with higher values indicating more efficient energy routing into target modes.

Limitations: As a fictional construct, MHS lacks a defined experimental protocol, and its numerical results depend on the modeling choices for energy accounting, mode selection, and normalization. Nevertheless, proponents argue it offers a compact way to compare disparate dynamic systems under MHz-range driving.

See also: metamaterials, driven systems, frequency-domain analysis, spectral sidebands.