This unexciting generalization from experience is the zeroth law of thermodynamics . 這個由經(jīng)驗產(chǎn)生的一般規(guī)則即熱力學第零定律。
Zeroth law of thermodynamics 熱力學第零定律
The equilibrium thermal radiation in a flat space - time or a curved space - time behaves like planck black spectrum represented with coordinate quantities . we regard the fact that the radiation from a thermal equilibrium system shows planck black spectrum as a basic physics law , from which it is demonstrated that the transitivity of clock rate synchronization is equivalent to the zeroth law of thermodynamics . the condition of clock rate synchronization is weaker than that constructing simultaneity surfaces . in the space - time satisfying the condition of clock rate synchronization , the zeroth law of thermodynamics is valid . on the other hand , in the space - time where the zeroth law is valid , one can define an identical clock rate 平直或彎曲時空中的平衡熱輻射,表現(xiàn)出用坐標量表示的普朗克黑體譜.把熱平衡系統(tǒng)的輻射具有普朗克黑體譜作為一條基本的物理規(guī)律,以此為基礎,論證鐘速同步的傳遞性等價于熱力學第零定律.鐘速同步的條件比建立同時面的條件要弱.滿足這一條件的時空,熱力學第零定律在其中成立.第零定律成立的時空,一定可以定義統(tǒng)一的鐘速