Deterministic LOCC transformation of three-qubit pure states and entanglement transfer

► We obtained a necessary and sufficient condition for deterministic LOCC of 3 qubits. ► We clarified rules of entanglement flow caused by measurements. ► We found a new parameter which is interpreted as “Charge of Entanglement”. ► We gave a set of entanglements which determines whether two states are LU-eq. or not. ► Our approach to deterministic LOCC of 3 qubits may be applicable to N qubits.