Quantum optical analysis of high-order harmonic generation in H$_2^+$ molecular ions

• URL: http://arxiv.org/abs/2307.12381v1
• Date: Sun, 23 Jul 2023 17:13:56 GMT
• Title: Quantum optical analysis of high-order harmonic generation in H$_2^+$ molecular ions
• Authors: J. Rivera-Dean, P. Stammer, A. S. Maxwell, Th. Lamprou, E. Pisanty, P. Tzallas, M. Lewenstein and M. F. Ciappina
• Abstract summary: We present a theoretical investigation of high-order harmonic generation in H$+$ molecular ions within a quantum optical framework. Our findings open up avenues for studying strong-laser field-driven interactions in molecular systems, and suggest their applicability to quantum technology applications.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a comprehensive theoretical investigation of high-order harmonic generation in H$_2^+$ molecular ions within a quantum optical framework. Our study focuses on characterizing various quantum optical and quantum information measures, highlighting the versatility of HHG in two-center molecules towards quantum technology applications. We demonstrate the emergence of entanglement between electron and light states after the laser-matter interaction. We also identify the possibility of obtaining non-classical states of light in targeted frequency modes by conditioning on specific electronic quantum states, which turn out to be crucial in the generation of highly non-classical entangled states between distinct sets of harmonic modes. Our findings open up avenues for studying strong-laser field-driven interactions in molecular systems, and suggest their applicability to quantum technology applications.

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