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Quantum simulation of charge and exciton transfer in multi-mode models using engineered reservoirs

https://doi.org/10.1038/s41467-025-67116-6

So, Visal; Duraisamy_Suganthi, Midhuna; Zhu, Mingjian; Menon, Abhishek; Tomaras, George; Zhuravel, Roman; Pu, Han; Wolynes, Peter_G; Onuchic, José_N; Pagano, Guido (December 2025, Nature Communications)
Dissipation-assisted steady-state entanglement engineering based on electron transfer models

https://doi.org/10.1103/9sr4-3jz2

Zhu, Mingjian; So, Visal; Pagano, Guido; Pu, Han (July 2025, Physical Review A)
Monogamy-of-entanglement-inspired protocol for quantifying bipartite entanglement using spin squeezing

https://doi.org/10.1103/hvmh-h7h8

Fallas_Padilla, Diego; Zhu, Mingjian; Pu, Han (June 2025, Physical Review A)
Trapped-ion quantum simulation of electron transfer models with tunable dissipation

https://doi.org/10.1126/sciadv.ads8011

So, Visal; Duraisamy_Suganthi, Midhuna; Menon, Abhishek; Zhu, Mingjian; Zhuravel, Roman; Pu, Han; Wolynes, Peter G; Onuchic, José N; Pagano, Guido (December 2024, Science Advances)

Electron transfer is at the heart of many fundamental physical, chemical, and biochemical processes essential for life. The exact simulation of these reactions is often hindered by the large number of degrees of freedom and by the essential role of quantum effects. Here, we experimentally simulate a paradigmatic model of molecular electron transfer using a multispecies trapped-ion crystal, where the donor-acceptor gap, the electronic and vibronic couplings, and the bath relaxation dynamics can all be controlled independently. By manipulating both the ground-state and optical qubits, we observe the real-time dynamics of the spin excitation, measuring the transfer rate in several regimes of adiabaticity and relaxation dynamics. Our results provide a testing ground for increasingly rich models of molecular excitation transfer processes that are relevant for molecular electronics and light-harvesting systems.
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