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The Manipulation of Two Atoms Injected at Different Time and Transformation of Information in High-Q Cavity with π Pulse

Author: HuFeng
Tutor: GeGuoQin
School: Huazhong University of Science and Technology
Course: Optics
Keywords: Cavity quantum electrodynamics (CQED) J-C model Master equation π pulse Timing difference
CLC: O431.2
Type: Master's thesis
Year: 2007
Downloads: 13
Quote: 0
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Abstract


Jaynes-Cumming model is the classic model used to describe the interaction of the atom and cavity light field . Photons, atoms in the chamber as the information carrier in the quantum information , in the interaction process , the information carried over time evolution, to achieve the preparation of the quantum of information bits , manipulation, and transmission . In this article, we briefly introduce Haroche research group microcavity -Rydberg atom experiments , and JC model to discuss the case of atoms and light field microcavity π interaction when adding pulse impact including system dissipation system temporary state evolution process . Numerical methods , we are solving the master equation for its evolution , seeking atomic matrix elements of differential equations , intuitive atomic matrix element of the time evolution of the curve . By discussing different field under the influence of the timing difference of the input atom and π pulse on the information carried by the atom . We found that the mesoscopic field next evolution of atomic π pulse , the atoms can overcome the jitter caused by the change of the field after the first atom-field interaction , is conducive to the fidelity of the information ; weak field , the first atom-field interaction and π pulse injection passed an important impact on the evolution of the second atomic π pulses can control the transmission of information is very important for quantum information has role.

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