Dissertation
Dissertation > Mathematical sciences and chemical > Physics > Optics > The light nature of the theory > Quantum optics

Entanglement of the Cavity Optomechanical System

Author GuoYuJie
Tutor LiangJiuQing
School Shanxi University
Course Theoretical Physics
Keywords Entanglement Cavity QED Optomechanics GHZ state
CLC O431.2
Type Master's thesis
Year 2011
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As a special concept of quantum mechanics, quantum entanglement has aroused great attention in both theory and application. With the development of quantum information science and experimental methods, the examination of quantum entanglement is becoming increasingly in-depth. Scientists working at various fields have paid much attention to the quantum information science, and have achieved fruitful results involving in both conceptual and experimental aspects.Optomechanics, which has significant theoretical values is an important field of quantum optics. It has played a vital role in the conceptual exploration of the boundaries between classical and quantum mechanical systems. Besides, optomechanical systems are suitable for people to study quantum decoherence and detect gravitational waves. Encouraging progress in these areas has been made.In this treatise, a two-level atom has been added to the optomechanical system. The whole system not only has the characteristics of optomechanical systems, but also contains the interacting of light field and atom. Thus, the results of cavity quantum electrodynamics can be reasonably utilized. Using the time-average method, we can obtain the effective hamiltonian, which reflects the clear physical image and has good mathematical properties. Ultimately, a GHZ state has been generated.

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