Biseparable Of Six Qubit States For Pauli Channels

With the development of quantum information theory, entanglement state is meaningful for the study of the basic question in quantum locality, the theory of hidden variables and measurement of quantum mechanics, and quantum entanglement play an important role in the quantum coding, quantum communication and quantum computing. Thus, the qualitative of quantum entanglement and quantitative research on the development of the frontier areas, especially in the aspects of quantum information (such as quantum telecommunication) is crucial.Quantum state diagram is a multicomponent entangled state, can be used for quantum coding and one-way quantum computing, it’s nature is relate to it contains, state figure measure of entanglement has made great progress. Just the two components of quantum system got a better solution in quantum entanglement measurement problem. Entanglement measure for multicomponent mixed quantum system even for multicomponent pure state is still didn’t get a perfect solution. Especially very few people research the separation and entangled in Pauli channels, but Pauli depolarization channel has a special characteristic, so this paper mainly calculated figure the ability to resist noise of all six quantum bit through Pauli channels. At first, through theoretical derivation,we know fidelity plays a role in Pauli channels, then using MATLAB calculate the value of the condition of Pauli channels can be completely separated of three qubits GHZ state, after that, calculate six qubits, at last compared with previous theoretical value and compared with white noise conditions. To simulate more complex situation, further study on the two six qubits state diagram with different mixing ratio under the condition of white noise tolerance.