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二光子過程を含む同位体選択的振動回転励起の量子制御

Quantum control of isotope-selective rovibrational excitations including two-photon processes

黒崎 譲*; 横山 啓一

Kurosaki, Yuzuru*; Yokoyama, Keiichi

レーザー同位体分離の原理的研究として、最適パルス電場による二原子分子の同位体選択的振動回転励起の可能性を探求した。今回は比較的高強度のパルス電場での計算を行った。その結果、与えた電場強度条件では主に2光子励起が起こり、ラマン遷移や1光子過程は少ないことがわかった。ターゲットとして同位体選択的振動回転励起の収率は0.6-0.9であった。

Optimal control theory calculations are performed to investigate the possibility of isotope-selective ro-vibrational excitation of diatomic molecules. In the present calculation, rather strong laser field is applied. Consequently, in the given field strength, it has been found that two-photon excitations mainly proceed and that Raman process and one-photon process are minor processes. The final yield of the isotope selective ro-vibrational excitation is 0.6 - 0.9.

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