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Information × Registration Number 0223U004086, 0120U104901 , R & D reports Title Nonclassical and hybrid correlations of quantum systems under realistic conditions popup.stage_title Head Kliushnichenko Oleksandr V., Кандидат фізико-математичних наукUzunova Vira O., Registration Date 30-08-2023 Organization Institute of Physics of National Academy of Sciences of Ukraine popup.description2 A mathematical model of a microwave superconducting photodetector, the Josephson photomultiplier (JPM), is developed. The Hamiltonian of the resonator-JPM system is derived and the JPM parameters are calculated. The Lindblad equation to describe the evolution of the resonator-JPM system is derived and its numerical and analytical solutions are obtained. The theoretical description of the JPM detector in terms of its positive operator-valued measure (POVM) is carried out. The statistics of JPM photocounts for typical quantum states of the resonator field (Fock, coherent, squeezed vacuum, and thermal) are obtained. The effective quantum Hamiltonian of the resonator-JPM system with SQUID coupling is derived. Product Description popup.authors Kliushnichenko Oleksandr V. Stoliarov Yevhen Volodymyrovych popup.nrat_date 2023-08-30 Close