initial state
Technical term in physics for the starting condition of a system before a process or change.
In quantum mechanics, the transition probability from the initial state to the final state is calculated.
このシミュレーションでは、系の始状態を定義する必要がある。
In this simulation, it is necessary to define the initial state of the system.
初期状態 is a more common and general term for 'initial state' used in computing and everyday contexts, while 始状態 is more technical and physics-oriented.
Compound of 始 (beginning) and 状態 (state), directly corresponding to the English term 'initial state' in physics.