DYNAMICAL PROPERTIES OF MULTI-PHOTON INTERACTION BETWEEN A CAVITY FIELD AND A SINGLE-QUBIT
HEBA KADRYComputer and Information Science Department, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh 31750, Perak, Malaysia NORDIN ZAKARIAComputer and Information Science Department, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh 31750, Perak, Malaysia LEE YEN CHEONGFundamentals and Applied Science Department, Universiti Teknologi PETRONAS, Seri Iskandar, Tronoh 31750, Perak, Malaysia MAHMOUD ABDEL-ATYScientific Publishing Center, Bahrain University, 32038, Kingdom of Bahrain Mathematics Department, Faculty of Science, Sohag University, 82524/Sohag, Egypt
Received: 6 April 2013
Revised: 7 June 2013
Accepted: 10 June 2013
Published: 12 July 2013
We study the dynamical properties of a cavity field coupling to a Cooper pair box (CPB). We assumed that the CPB is prepared initially in a mixed state with a coherent state for the field. By solving the time-dependent equations using the evolution operator, it shows that mean numbers of Cooper pairs is affected by the detuning. The mean number of Cooper pairs is further enhanced by the multi-photon processes in commonly used cavity field.
Keywords: Quantum computer; qubits; Cooper pair box; multi-photon process