Optimization of selective two-photon absorption in cavity polaritons
Open Access
- 7 June 2021
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 154 (21), 214114
- https://doi.org/10.1063/5.0049863
Abstract
We investigate optimal states of photon pairs to excite a target transition in a multilevel quantum system. With the help of coherent control theory for two-photon absorption with quantum light, we infer the maximal population achievable by optimal entangled vs separable states of light. Interference between excitation pathways as well as the presence of nearby states may hamper the selective excitation of a particular target state, but we show that quantum correlations can help to overcome this problem and enhance the achievable “selectivity” between two energy levels, i.e., the relative difference in population transferred into each of them. We find that the added value of optimal entangled states of light increases with broadening linewidths of the target states.Keywords
Funding Information
- FP7 Ideas: European Research Council (319286 Q-MAC)
- Deutsche Forschungsgemeinschaft (390715994)
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