Low frequency photons, such as those in the radio or microwave range, can indeed be treated as particles within the framework of quantum mechanics. Photons are elementary particles that carry electromagnetic energy and exhibit both particle-like and wave-like properties, depending on the context in which they are observed.
In quantum theory, particles, including photons, can be described as quanta or discrete packets of energy. The energy of a photon is directly proportional to its frequency (E = hf), where h is Planck's constant and f is the frequency of the photon. This means that lower frequency photons have lower energy compared to higher frequency photons.
While photons at lower frequencies have less energy, they still possess the characteristics of particles. They can be absorbed, emitted, and detected as individual entities. In fact, radio waves, microwaves, and other low-frequency electromagnetic waves are composed of photons.
The distinction between low-frequency photons and high-frequency photons lies in their energy content and the observable effects they produce. Low-frequency photons typically have less energy, longer wavelengths, and lower frequencies, which can make their effects less noticeable or harder to detect in certain contexts. However, they are still fundamentally particles and can be described as such within the framework of quantum mechanics.