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Quantum Chemistry
Effective Potential and Mutual Gauge Field of Microwave-shielded Polar Molecules in a Static Electric Field
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Authors: Yuxin Wang, Fan Yang, Peng Zhang
Year
2026
Paper ID
48528
Status
Peer-reviewed
Abstract Read
~2 min
Abstract Words
180
Citations
N/A
Abstract
Abstract We investigate the effective interaction and synthetic mutual gauge field between two polar molecules subject to a combination of a static electric field (E-field) and a blue-detuned circularly polarized microwave. We consider all rotational states strongly coupled by the static E-field up to $J = 9$ and demonstrate that the effective inter-molecular potential exhibits three distinct behaviors as the E-field strength increases. Specifically, two critical field strengths, denoted as Ec(1) and Ec(2) $Ec^{(1} < E_c^{(2)}), mark the transitions. When the static E-field strengthE_zis belowE_c^{(1)}, the effective interaction is characterized by an anti-dipolar potential with a short-range repulsive barrier. ForE_c^{(1)} < E_z < E_c^{(2)}, the long-range potential becomes dipolar, but it still features a short-range repulsive barrier. However, whenE_zexceedsE_c^{(2)}, the effective potential becomes attractive along the field axis, signaling the breakdown of three-dimensional shielding. Additionally, the synthetic magnetic flux outside the shielding core is widely tunable, ranging from nearly zero to values approaching2\pi$, offering a mechanism for engineering the adiabatic gauge effects arising from microwave shielding.
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- Abstract We investigate the effective interaction and synthetic mutual gauge field between two polar molecules subject to a combination of a static electric field (E-field) and...
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