Nonclassicality dynamics of a dissipative cavity field containing two qubits with Kerr medium: Linear and Wehrl phase entropies

Autor:	A.-B. A. Mohamed, F. Maiz, Fadhel Almalki, E. M. Khalil, S. Abdel-Khalek
Rok vydání:	2022
Předmět:	Nuclear and High Energy Physics Physics::Optics General Physics and Astronomy Astronomy and Astrophysics Quantum Physics
Zdroj:	Modern Physics Letters A. 37
ISSN:	1793-6632 0217-7323
DOI:	10.1142/s0217732322500249
Popis:	An analytical solution for a dissipative cavity field interacting with two qubits (TQs) in presence of Kerr-like medium is obtained. The super-operator method is used to obtaining the field density matrix elements under the dispersive approximation. Linear entropy is calculated to determine the entanglement between the cavity field and the TQs. Moreover, the Wehrl entropy and Wehrl phase distribution are discussed to discover the nonclassicality dynamics of a dissipative cavity field. It is found that the Kerr medium and the dissipation reduce the generated quantum coherence due to the qubit–cavity interactions. It is possible to control the ability of cavity–qubit interactions to generate quantum coherence by the mean photon number of the initial coherent cavity state. Moreover, the nonclassicality of the initial coherent state reduces the dissipative and the Kerr medium effects.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9eeb63f2df865fea8a4aefa784e75043 https://doi.org/10.1142/s0217732322500249 Zobrazit plný text záznamu