Entanglement properties of superconducting qubits coupled to a semi-infinite transmission line

Quantum entanglement, a key resource in quantum information processing, is reduced by interaction between the system concerned and its unavoidable noisy environment. Therefore it of particular importance to study dynamical properties entanglement open systems. In this work, we mainly focus on two qubits coupled an adjustable environment, namely semi-infinite transmission line. The qubits’ relaxations, through individual channels or collective channel both, can be adjusted transition frequencies. We examine dynamics model with initial Werner state, show that phenomena sudden death revival observed. Due hardness preparing state experimentally, introduce new type entangled called pseudo-Werner which preserves as much entangling property more importantly, experiment friendly. Furthermore, provide detailed procedures for generating studying it, straightforwardly implemented superconducting waveguide electrodynamics system.