Molecular Dynamics in Rydberg Tweezer Arrays: Spin-Phonon Entanglement and Jahn-Teller Effect

• URL: http://arxiv.org/abs/2303.08861v2
• Date: Fri, 25 Aug 2023 07:51:52 GMT
• Title: Molecular Dynamics in Rydberg Tweezer Arrays: Spin-Phonon Entanglement and Jahn-Teller Effect
• Authors: Matteo Magoni, Radhika Joshi, Igor Lesanovsky
• Abstract summary: Atoms confined in optical tweezer arrays constitute a platform for the implementation of quantum computers and simulators. We explore electrostatic dipolar interactions that emerge, when two atoms are simultaneously excited to high-lying electronic states, so-called Rydberg states. This highlights the potential of Rydberg tweezer arrays for the study of molecular phenomena at exaggerated length scales.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Atoms confined in optical tweezer arrays constitute a platform for the implementation of quantum computers and simulators. State-dependent operations are realized by exploiting electrostatic dipolar interactions that emerge, when two atoms are simultaneously excited to high-lying electronic states, so-called Rydberg states. These interactions also lead to state-dependent mechanical forces, which couple the electronic dynamics of the atoms to their vibrational motion. We explore these vibronic couplings within an artificial molecular system in which Rydberg states are excited under so-called facilitation conditions. This system, which is not necessarily self-bound, undergoes a structural transition between an equilateral triangle and an equal-weighted superposition of distorted triangular states (Jahn-Teller regime) exhibiting spin-phonon entanglement on a micrometer distance. This highlights the potential of Rydberg tweezer arrays for the study of molecular phenomena at exaggerated length scales.

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