Experimental Realization of Thermal Reservoirs with Tunable Temperature in a Trapped-Ion Spin-Boson Simulator

• URL: http://arxiv.org/abs/2511.08689v1
• Date: Thu, 13 Nov 2025 01:02:17 GMT
• Title: Experimental Realization of Thermal Reservoirs with Tunable Temperature in a Trapped-Ion Spin-Boson Simulator
• Authors: Visal So, Mingjian Zhu, Midhuna Duraisamy Suganthi, Abhishek Menon, George Tomaras, Roman Zhuravel, Han Pu, Guido Pagano,
• Abstract summary: We propose and demonstrate an experimental scheme to engineer thermal baths with independently tunable temperatures and dissipation rates.<n>This approach enables robust thermal-state preparation and quantum simulations of open-system dynamics in bosonic and spin-boson models.
• Score: 0.952790967447304
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: We propose and demonstrate an experimental scheme to engineer thermal baths with independently tunable temperatures and dissipation rates for the motional modes of a trapped-ion system. This approach enables robust thermal-state preparation and quantum simulations of open-system dynamics in bosonic and spin-boson models at well-controlled finite temperatures. We benchmark our protocol by experimentally realizing out-of-equilibrium dynamics of a charge-transfer model at different temperatures. We observe that, when the process occurs at a higher temperature, the transfer rate spectrum broadens, with reduced rates at small donor-acceptor energy gaps and enhanced rates at large gaps. We then employ our scheme to study local-temperature effects in a two-mode vibrationally assisted exciton transfer system, where we observe thermally activated interference pathways for excitation transfer.

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