Non-destructive detection and generation of the Werner state via a dissipative process

• We propose a scheme for nondestructive detection of Werner state.
• We generate a Werner state as a stationary state by pumping the cavity field.
• Accurate controlling of the interaction time is not required in both schemes.

We propose a scheme for the non-destructive detection of an unknown Werner state by detecting the steady-state output intensity of the probe field. Moreover, with a similar mechanism, a Werner state can be generated as a stationary state by pumping the cavity field. The numerical simulations indicate that both the state detection and generation schemes are effective and efficient.