Dissertation > Excellent graduate degree dissertation topics show

Influence of Kerr Medium on Entanglement of Cascade-Type Three-Level Atoms and a Bimodal Cavity Field

Author: ZuoJiHui
Tutor: ZhangShou
School: Yanbian University
Course: Theoretical Physics
Keywords: Atomic population probability Residual entanglement Kerr medium Concurrence
CLC: O431.2
Type: Master's thesis
Year: 2010
Downloads: 26
Quote: 0
Read: Download Dissertation

Abstract


Entangled quantum mechanical many-particle system in the ubiquitous , is a very special kind of quantum states . Measure of quantum entanglement is one of the important issues in recent years made ??a number of descriptions of physical entanglement , von Neumann entropy, the relative entropy of entanglement , partly transposed negative eigenvalues ??and concurrence (Concurrence) and three-body entanglement ( residual entanglement ) , etc. Because the actual system can not avoid interacting with the environment , cause the system to reduce the degree of entanglement . interaction with the environment in the system under the premise of improving the entanglement is the central question we want to study . use concurrence and three-body entanglement measure method, the time evolution equation of the system , the system of atoms and cavity entanglement of this article study of Kerr medium on the cascade three- level atom interacting with a bimodal cavity entanglement . discussion Kerr medium on atomic population probability and system residual entanglement results showed that , in the ideal case , the nonlinear Kerr medium can be changed atomic population probability and the system remaining entanglement cycle so that the probability of atomic population remaining entanglement cycles and systems become smaller, the oscillation frequency to accelerate , the overall average increases , the peak increase in the number when considering the cavity decay , nonlinear Kerr medium introducing significantly improve system remaining entangled value entanglement oscillation amplitude nonlinear Kerr coefficient with the increase , the time evolution of entanglement finally reaches a stable value , nonlinear Kerr medium containing residual entanglement of the system disappeared ; while atomic population probability cycles, the time evolution of the probability to reach a stable value . Moreover , we have studied the nonlinear Kerr medium on the evolution of two entangled atoms and found that it reduces the value of two entangled atoms , such work is future experiments provides a good theoretical basis .

Related Dissertations

  1. Industrial injury insurance claims and personal injury compensation Concurrence Study,D923;D922.182.3
  2. The Relational on Industrial Injury Insurance Compensation and Damages for Infringement,D923
  3. Compensation for work-related injury insurance claims and personal infringing the right to claim damages Concurrence,D922.5
  4. Mental damages of Breach,D923
  5. Research on the Concurrence of Third Party Tort Liability and Inductrial Injury Insurance Liability,D923
  6. Kerr medium in the cavity dissipative two-photon entanglement dynamics JC Model,O431.2
  7. Quanzhou industrial clusters, small and medium garment enterprises Relations Cooperation Game,F426.86
  8. Workers' compensation and civil compensation competing Issues,D923
  9. Study of the Dynamics for the Cavity-damped Jaynes-Cummings Model with Kerr Medium,O431.2
  10. Research on Some Problems of the Aggravated Consequential Offence,D914
  11. Entanglement Properties of the Coupled Qubits with Non-Markovian Environment,O511.4
  12. On the Legislative Perfection of Concurrence between China’s Industrial Injury Insurance Compensation and Civil Tort Injury Compensation,D922.5
  13. Concurrence of the Yellow River Loop Tour,F592.7
  14. The Entanglement Measure of Multi-qubit Pure State in Quantum Error-correcting Code,O413.1
  15. The Generalized Concurrence and Application,O413
  16. Study on Concurrence of the Claim of Default and the Claim in Tort,D923
  17. A Study on the Dynamical Process for Atom Interacting with the Kerr Medium,O431.2
  18. Teaching Research of Concurrent Words of Chinese as a Foreign Language,H195
  19. Study on the Administrative Monopoly in the Anti-monopoly Law,D922.294
  20. Breach of contract and tort liability for damages of Concurrence,D923.6
  21. A Theoretical Study on the Concurrence of the Claim for Unjustified Benefits and the Claim for Right Infringement,D913

CLC: > Mathematical sciences and chemical > Physics > Optics > The light nature of the theory > Quantum optics
© 2012 www.DissertationTopic.Net  Mobile