qBm
qBm is a notation that appears in several scientific contexts, most commonly in quantum physics and materials science, where it represents the product of three fundamental quantities: electric charge (q), magnetic field strength (B), and particle mass (m). In the Hamiltonian formalism of charged particles moving in a magnetic field, the term qBm frequently arises as part of the cyclotron frequency expression ω = qB/m, which governs the circular motion of the particle. By combining the three symbols into a single term, authors can succinctly reference this product when discussing phenomena such as Landau quantization, magnetic confinement, and the Zeeman effect.
Outside of physics, qBm is occasionally employed as a dimensionless scaling parameter in computational models of
The abbreviation is also used informally in some engineering literature to denote a “quick‑build module” in