{4-Bromo-2-[2-(methyl­amino­)ethyl­iminometh­yl]phenolato}thio­cyanato­copper(II)

In the title mononuclear copper(II) complex, [Cu(C10H12BrN2O)(NCS)], the CuII ion is coordinated by two N atoms and one O atom from a Schiff base ligand, and by one N atom from a thio­cyanate anion, giving a square-planar geometry. In the crystal structure, symmetry-related mol­ecules are linked by an N—H⋯S hydrogen bond

Quantum Game with Restricted Matrix Strategies

We study a quantum game played by two players with restricted multiple strategies. It is found that in this restricted quantum game Nash equilibrium does not always exist when the initial state is entangled. At the same time, we find that when Nash equilibrium exists the pay off function is usually different from that in the classical counterpart except in some special cases. This presents an explicit example where quantum game and classical game may differ. When designing a quantum game with limited strategies, the allowed strategy should be carefully chosen according to the type of initial state.Comment: 5 pages and 3 figure

{4-Bromo-2-[2-(isopropyl­amino)ethyl­imino­meth­yl]phenolato}thio­cyanato­copper(II)

In the title mononuclear Schiff base copper(II) complex, [Cu(C12H16BrN2O)(NCS)], the CuII ion is coordinated by two N atoms and one O atom from a Schiff base ligand, and by one N atom from a thio­cyanate anion, giving a square-planar geometry. There are long-range inter­actions between the Cu atom and S [3.151 (5) Å] and Br [3.929 (5) Å] atoms above and below the square plane

Insights into neutron star equation of state by machine learning

Due to its powerful capability and high efficiency in big data analysis, machine learning has been applied in various fields. We construct a neural network platform to constrain the behaviors of the equation of state of nuclear matter with respect to the properties of nuclear matter at saturation density and the properties of neutron stars. It is found that the neural network is able to give reasonable predictions of parameter space and provide new hints into the constraints of hadron interactions. As a specific example, we take the relativistic mean field approximation in a widely accepted Walecka-type model to illustrate the feasibility and efficiency of the platform. The results show that the neural network can indeed estimate the parameters of the model at a certain precision such that both the properties of nuclear matter around saturation density and global properties of neutron stars can be saturated. The optimization of the present modularly designed neural network and extension to other effective models are straightforward.Comment: 12 pages, 5 figures. Comments are welcom

(E)-N′-(4-Meth­oxy­benzyl­idene)-3-nitro­benzohydrazide

In the title compound, C15H13N3O4, the two substituted benzene rings form a dihedral angle of 5.0 (3)°. In the crystal, inter­molecular N—H⋯O hydrogen bonds link mol­ecules into chains along the b axis