Exchange interaction, entanglement, and quantum noise due to a thermal bosonic field
In this work, we investigate the two competing physical effects of a thermalized bosonic environment bath in which two qubits are immersed. Specifically, the induced interaction, which is effectively a zero-temperature effect, and the quantum noise, originating from the same bath modes, are derived within a uniform treatment. We study the dependence of the induced coherent vs noise decoherence effects on the parameters of the bath modes, the qubit system, and their coupling, as well as on the geometry. Specific applications are given for spins interacting with phonons in semiconductors.
In the enterprise,only when the knowledge is transferred and used among people,can it embody its value.Through the exploration of the foundation in the knowledge transfer process,the paper puts forward the concept of knowledge potential energy,by which the amount of knowledge in particular fields at individual′s possession can be measured.Besides,this research introduces system dynamics to set up three quantization models of knowledge transfer in the enterprise.These quantization models mostly describe the change of knowledge potential energy of knowledge receiver in the process of knowledge transfer.At last,it is founded the knowledge receiver′s knowledge potential energy curve is made up of S type rise curve.This S type rise curve can be plotted out three stages,each of which has its major influencing factors.So,enterprises may gain the anticipating knowledge receiver′s knowledge potential curve through adjusting the values of some of the factors.