The Wehrl′s Entropy and Shannon′s Entropy for the Non-classical Optical Fields with Negative P Representation
Hong Mā · Acta Sinica Quantum Optica · 2007
The Wehrl′s Entropy and Shannon′s entropy for the non-classical optical fields with negative P representation are studied in this paper. The results show that the Wehrl′s entropy of the states decreases along with the growth of the state parameter and the average photon numbers and tend to be constant. While the Shannon′s entropy increases along with the increase of state parameter and the average photon numbers. It is also found that the Wehrl′s entropy of the non-classical optical fields with negative P representation decreases while the total noise increases and the Shannon′s entropy decreases along with the decrease of observable fluctuation.