<正> In this paper,knotted objects (RS vortices) in the theory of topological phase singularity in electromagneticfield have been investigated in details.By usi
<正> A quantum secure direct intercommunication scheme is proposed to exchange directly the communicators'secret messages by making use of swapping entangle
<正> Metric of quantum states plays an important role in quantum information theory.In this letter,we find thedeep connection between quantum logic theory and q
<正> On the condition of electric-LO phonon strong coupling in unsymmetrical parabolic confinement potentialquantum dot(QD),we obtain the eigenenergies of the g
<正> Anti-synchronization between different hyperehaotic systems is presented using Lorenz and Liu systems.When the parameters of two systems are known,one can