ABSTRACT
RS commonly used symbol for source impedance.
RT commonly used symbol for transformation ratio.
R-ALOHA See reservation ALOHA.
RL Typical symbol for load resistance.
Rabi frequency the characteristic coupling strength between a near-resonant electromagnetic field and two states of a quantum mechanical system. For example, the Rabi frequency of an electric dipole allowed transition is equal to µE/hbar, where µ is the electric dipole moment and E is the maximum electric field amplitude. In a strongly driven 2-level system, the Rabi frequency is equal to the rate at which population oscillates between the ground and excited states.
race condition a situation where multiple processes access and manipulate shared data with the outcome dependent on the relative timing of these processes.
