Non-perturbative Quantum Control via the Non-resonant Dynamic Stark Effect
Non-perturbative Quantum Control via the Non-resonant Dynamic Stark Effect
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通过非共振动态斯塔克效应进行非微扰量子控制
DOI：
10.1103/physreva.71.051401
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
A. Stolow
中科院分区：
文献类型：
--
作者：
A. Stolow
中等场强状态非微扰但非电离。我们说明了这种方案的情况下，非绝热分子光解在避免交叉。仅使用NRDSE，可以控制电子分支比和预解离寿命。利用红外控制脉冲来改变避避交叉穿越过程中的无场动力学演化，从而控制非绝热分支比。使用适当定时的短红外脉冲来修改非绝热波包之间的相位差，可以增加或减少预解离寿命。与微扰控制（跃迁之间的干扰）和电离激光场的强场控制的极限情况相反，通过NRDSE的控制可以被认为是在系统传播过程中可逆地修改有效哈密顿量。
intermediate field strength regime snonperturbative but nonionizingd. We illustrate this scheme for the case of nonadiabatic molecular photodissociation at an avoided crossing. Using the NRDSE exclusively, both the electronic branching ratio and predissociation lifetime may be controlled. Infrared control pulses are used to modify the field-free dynamical evolution during traversal of the avoided crossing, thus controlling the nonadiabatic branching ratio. Predissociation lifetimes may be either increased or decreased using properly timed short infrared pulses to modify phase differences between the diabatic wave packets. In contrast with the limiting cases of perturbative control sinterference between transitionsd and strong field control with ionizing laser fields, control via the NRDSE may be thought of as reversibly modifying the effective Hamiltonian during system propagation.