We investigate tight monogamy relations of multiparty quantum entanglement for any state in this paper. First, we obtain a class lower bounds systems which improve the previous results. Next, establish tighter tripartite by means new inequality. Furthermore, generalize to systems. And then prove obtained are larger than existing ones. Detailed examples provided at last.

We present classes of monogamy inequalities related to the ?th () power entanglement measure based on unified-() entropy, and polygamy ?th assistance by using Hamming weight. show that these are tighter than existing ones. Detailed examples given for illustrating advantages.

Theory predicts that monogamy is adaptive in resource-specialist symbiotic crustaceans inhabiting relatively small and morphologically simple hosts in tropical environments where predation risk away from hosts is high. We tested this prediction in Pontonia manningi, a hyper-symbiotic shrimp that dwells in the mantle cavity of the Atlantic winged oyster Pteria colymbus that, in turn, infects gor...

The fusion of Chlamydomonas gamete membranes leads to rapid degradation of FUS1 and HAP2, proteins required for gamete fusion. This provides a mechanism to prevent any subsequent fusion events, thereby preventing polygamy.

We consider an arbitrary d1 ⊗ d2 ⊗ · · · ⊗ dN composite quantum system and find necessary conditions for general m-party subsystem states to be the reduced states of a common N-party state. These conditions will lead to various monogamy inequalities for bipartite quantum entanglement and partial disorder in multipartite states. Our results are tightly connected with the measures of multipartite...

We generalize the W class of states from n qubits to n qudits and prove that their entanglement is fully characterized by their partial entanglements even for the case of the mixture that consists of a W-class state and a product state |0〉. PACS numbers: 03.67.-a, 03.65.Ud, Generalized W-Class State and its Monogamy Relation 2