1. Optimal Jump Operators for Entanglement Measure
O. Brodier M. Busse, C. Viviescas, A. R. R. Carvalho, A. Buchleitner
M.P.I.P.K.S. Nöthnitzer Str. 38, D DRESDEN, ALLEMAGNE

2. Entanglement Measure
 Concurrence
 Mixed state →

3. Entanglement dynamics
Entanglement of a mixture A B
Measuring environment → Pure entanglement A B

4. Setup 1 A B

5. Setup 2 A B

6. Conclusion
For this example there exists an optimal experimental setup which gives the exact entanglement measure.
General Prescription for Measuring Environment?