A quantum method to detect the absolute frame

It has been argued that the collapse law of wave function may violate the Lorentz invariance, and may further result in the existence of an absolute frame of reference. In this paper, we discuss one kind of dynamical collapse theory. It is denoted that the collapse law just provides a practical method to detect the absolute frame. The concrete method is to measure the collapse time of wave function. The rationality and validity of such method are also discussed.