DYNAMICS OF FISHER INFORMATION IN KERR MEDIUM
S. Abdel‐Khalek · International Journal of Quantum Information · 2009
We discuss new aspects of the interaction between a cavity field and Kerr-like medium, focusing on Fisher Information. Here, we provide a new formula for marginal distributions of the Fisher Information and comparison with the Wehrl entropy for the system has been presented. The results show that, it is a correlation measure which is true for any quantum state, provided that it shows the same entropy behaviors of certain reduced states.