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Updated: Jan 8, 2026
08:22
Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
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Jahn-Teller-driven electric field response in excited octupolar molecules
Alexey E Nazarov1, Vyacheslav K Ignatjev1, Anatoly I Ivanov1
1Volgograd State University, University Avenue 100, Volgograd 400062, Russia.
The Journal of Chemical Physics
|December 22, 2025
Summary
Excited octupolar molecules act as qubits under electric fields, with their dipole moments significantly influenced by vibronic interactions. This unified model bridges single-molecule behavior and bulk properties.
Area of Science:
- Theoretical chemistry
- Quantum mechanics
- Molecular physics
Background:
- Octupolar molecules possess unique symmetry properties.
- Vibronic interactions, including the Jahn-Teller effect, significantly influence molecular behavior.
- Understanding molecular response to external electric fields is crucial for materials science and quantum technologies.
Purpose of the Study:
- To develop a comprehensive theoretical model for excited octupolar molecules in static electric fields.
- To elucidate the role of vibronic interactions in modulating molecular properties.
- To unify the treatment of electronic states and nuclear dynamics.
Main Methods:
- Development of a comprehensive theoretical framework.
- Explicit inclusion of vibronic interactions (Jahn-Teller effect).
- Calculation and analysis of temperature-dependent ensemble-averaged dipole moments.
Main Results:
- Excited octupolar molecules behave as qubits with electric dipole moments, irrespective of vibronic coupling strength.
- Field-induced dipole moments and anisotropy are modulated by vibrational mode coupling, not intrinsic electronic properties.
- Temperature dependence bridges single-molecule and bulk properties.
Conclusions:
- The model provides fundamental insights into symmetry, vibronic coupling, and external perturbations.
- Octupolar molecules exhibit qubit-like behavior with tunable electric dipole moments.
- Understanding these interactions is key for designing novel molecular systems and quantum devices.
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