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arXiv · 2306.00151

Impact of Chiral-Transitions in Quantum Friction

Muzzamal I. Shaukat·Mario G. Silveirinha
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Abstract

We theoretically investigate the role of chiral-transitions in the quantum friction force that acts on a two-level atom that moves with relative velocity v parallel to a planar metallic surface. We find that the friction force has a component that is sensitive to the handedness of the atomic transition dipole moment. In the particular, we show that the friction force can be enhanced by an atomic transition with a dipole moment with a certain handedness, and almost suppressed by the dipole moment with the opposite handedness. Curiously, the handedness of the transition dipole moment that boosts the ground-state friction force is the opposite of what is classically expected from the spin-momentum locking. We explain this discrepancy in terms of the interaction between positive and negative frequency oscillators.

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Muzzamal I. Shaukat, Mario G. Silveirinha. 2023-05-31. Impact of Chiral-Transitions in Quantum Friction. https://arxiv.org/abs/2306.00151

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