Book contents
- Frontmatter
- Contents
- Introduction
- 1 Experiment: Detecting Single Quantum Objects
- 2 Description of Quantum Systems in Terms of the Density Matrix
- 3 Experiment: Quantum Processes
- 4 Evolution
- 5 Measurement
- 6 Experiment: Bipartite Systems
- 7 Entanglement
- 8 Experiment: Continuous Quantum Fluctuations
- 9 Continuous Variable Systems
- 10 Experiment: Parameter Estimation
- 11 Theory: Parameter Estimation
- A Basic Postulates of QuantumMechanics: a Reminder
- B Generalized Postulates of Quantum Mechanics
- C Description of Composite Systems
- D Qubits
- E Quantum Particle
- F Quantum Electromagnetic Field
- G Interaction between Light and Atoms
- H Interaction between Light Beams and Linear OpticalMedia
- I Interaction between Light Beams and Nonlinear OpticalMedia
- J Optomechanics
- K Basics of Circuit Quantum Electrodynamics
- References
- Index
G - Interaction between Light and Atoms
Published online by Cambridge University Press: 27 July 2023
- Frontmatter
- Contents
- Introduction
- 1 Experiment: Detecting Single Quantum Objects
- 2 Description of Quantum Systems in Terms of the Density Matrix
- 3 Experiment: Quantum Processes
- 4 Evolution
- 5 Measurement
- 6 Experiment: Bipartite Systems
- 7 Entanglement
- 8 Experiment: Continuous Quantum Fluctuations
- 9 Continuous Variable Systems
- 10 Experiment: Parameter Estimation
- 11 Theory: Parameter Estimation
- A Basic Postulates of QuantumMechanics: a Reminder
- B Generalized Postulates of Quantum Mechanics
- C Description of Composite Systems
- D Qubits
- E Quantum Particle
- F Quantum Electromagnetic Field
- G Interaction between Light and Atoms
- H Interaction between Light Beams and Linear OpticalMedia
- I Interaction between Light Beams and Nonlinear OpticalMedia
- J Optomechanics
- K Basics of Circuit Quantum Electrodynamics
- References
- Index
Summary
Appendix G: interaction between a monochromatic field and two-level atom. The problem is treated first in the case of a classical field and a quantum two-level system (semiclassical approach): It is characterised by a rotation of the Bloch vector (Rabi ocillation) and allows us to generate any qubit state by applying a field of well-controlled duration and amplitude. One then includes spontaneous emission to the model, and finally obtains the set of Bloch equations that are used in many different problems of light–matter interaction. One then considers the full quantum case of cavity quantum electrodynamics (CQED), where the field is single mode and fully quantum: this is the Jaynes–Cummings Hamiltonian approach, which is fully solvable when one negelcts spontaneous emission: quantum oscillations and revivals are predicted. Damping is then introduced in the model, and two regimes of strong and weak couplings are predicted in this case.
Keywords
- Type
- Chapter
- Information
- Quantum Processes and MeasurementTheory and Experiment, pp. 240 - 251Publisher: Cambridge University PressPrint publication year: 2023