Abstract:
Based on the comparison between quantum mechanics and relativity,both may be combined,but possess incompatibility.From this some possible theoretical developments are discussed.In particular,three aspects are researched:Contradiction between the uncertainty principle and the constancy light speed,etc.Quantum nonlocality shows that the entangled state should be a new interaction with middle action-distance and strength.Negative matter derived from Dirac’s negative energy state is possibly a dark matter.