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Cavity Quantum Electro-Dynamics in Ultra-Strong Coupling Regime

Arab, Abbas | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 41933 (05)
  4. University: Sharif University of Technology
  5. Department: electrical engineering
  6. Advisor(s): Khorasani, Sina
  7. Abstract:
  8. Cavity Quantum Electro-Dynamics (CQED) in Weak, Strong and Ultra-Strong coupling Regimes are studied. A MATLAB m-file is written which is able to solve any arbitrary CQED configuration. This program demands input data such as number of Quantum Dots, number of energy levels of each Quantum Dot, energies of each energy level of Quantum Dots, Number of cavity modes, eign-frequency of each cavity mode, coupling constant, dipole strength of each allowed transition of Quantum Dots and initial state of system from user and begins to solve the Schrodinger equation for annihilation and atomic ladder operators. In addition, coefficients of each possible ket will be calculated. Since, any approximation method is dismissed in the program, the results are mathematically exact. In chapter 1, a brief history and applications of CQED systems are discussed. In chapter 2, the algorithm and the format of input text file will be cleared. In chapter 3, reader will be familiar with the notation that is used throughout of this thesis and also, the mathematical process of gleaning the Schrodinger equation for annihilation and atomic ladder operator is followed. Finally in chapter 4, results of several parameters for a specific CQED system are illustrated in Weak, Strong and Ultra-Strong Coupling Regimes
  9. Keywords:
  10. Cavity Quantum Electrodynamics ; Weak Coupling Regime ; Strong Coupling Regime ; Ultra-Strong Coupling Regime ; Coupling Constant

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