LAUSR

Monogamy and polygamy relations characterize the distribution of entanglement for multipartite systems. In this paper, we establish a class of tighter weighted monogamy relations of multi-qubit entanglement based on the α th-power of Tsallis-q entanglement(TE) for α ≥ 1 and 2 ≤ q ≤ 3. And for 0 ≤ α ≤ 1 and 1 ≤ q ≤ 2 or 3 ≤ q ≤ 4, the α th-power of Tsallis-q entanglement of assistance(TEoA) follows a class of tighter weighted polygamy relations. For α < 0, the corresponding monogamy and polygamy relations are also given, respectively.