Abstract
Preserving quantum coherence with the increase of a system's size and complexity is a major challenge. Molecules, with their diverse sizes and complexities and many degrees of freedom, are an excellent platform for studying the transition from quantum to classical behavior. While most quantum-control studies of molecules focus on vibrations and rotations, we focus here on creating a quantum superposition between two nuclear-spin isomers of the same molecule. We present a scheme that exploits an avoided crossing in the spectrum to create strong coupling between two uncoupled nuclear-spin-isomer states, hence creating an isomeric qubit. We model our scheme using a four-level Hamiltonian and explore the coherent dynamics in the different regimes and parameters of our system. Our four-level model and approach can be applied to other systems with a similar energy-level structure.
Original language | English |
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Number of pages | 12 |
Journal | arXiv.org |
DOIs | |
Publication status | In preparation - 20 Sept 2024 |
Funding
We would like to thanks Alexander Poddubny, Nitzan Akerman, and Yuval Shagam for fruitful discussions and reading of this manuscript, and Shimon Levit for discussions on the hyperfine electric-quadrupole interaction in molecules. We acknowledge the support of the Diane and Guilford Glazer Foundation Impact Grant for New Scientists, the Center for New Scientists at the Weizmann Institute of Science, the Edith and Nathan Goldenberg Career Development Chair, the Israel Science Foundation (1010/22), and the Minerva Stiftung with funding from the Federal German Ministry for Education and Research.