<P> Using four - vectors, the De Broglie relations form a single equation: </P> <Dl> <Dd> <Table> <Tr> <Td> <P> P = ħ K (\ displaystyle \ mathbf (P) = \ hbar \ mathbf (K)) </P> </Td> </Tr> </Table> </Dd> </Dl> <Dd> <Table> <Tr> <Td> <P> P = ħ K (\ displaystyle \ mathbf (P) = \ hbar \ mathbf (K)) </P> </Td> </Tr> </Table> </Dd> <Table> <Tr> <Td> <P> P = ħ K (\ displaystyle \ mathbf (P) = \ hbar \ mathbf (K)) </P> </Td> </Tr> </Table>

State two characteristics of de broglie wave that separate it from a classical wave