Casimir-Polder Potential of a Driven Atom

Abstract

We investigate theoretically the Casimir-Polder potential of an atom which is driven by a laser field close to a surface. This problem is addressed in the framework of macroscopic quantum electrodynamics using the Green's tensor formalism and we distinguish between two different approaches, a perturbative ansatz and a method based on Bloch equations. We apply our results to a concrete example, namely an atom close to a perfectly conducting mirror, and create a scenario where the tunable Casimir-Polder potential becomes similar to the respective potential of an undriven atom due to fluctuating field modes. Whereas the perturbative approach is restricted to large detunings, the ansatz based on Bloch equations is exact and yields an expression for the potential which does not exceed 1/2 of the undriven Casimir-Polder potential.

13 pages, 8 figures

References in corpus (8)

• Measurement of the Temperature Dependence of the Casimir-Polder Force
• Measuring Electric Fields From Surface Contaminants with Neutral Atoms
• Trapping cold atoms near carbon nanotubes: thermal spin flips and Casimir-Polder potential
• Casimir-Polder forces on excited atoms in the strong atom-field coupling regime
• Dynamical Casimir-Polder force between an atom and a conducting wall
• Casimir-Polder Shift and Decay Rate in the Presence of Nonreciprocal Media
• Dynamical Casimir-Polder force on a partially dressed atom near a conducting wall
• Dynamical Casimir-Polder interaction between a chiral molecule and a surface

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• Fluctuation-induced Forces on Nanospheres in External Fields
• The Casimir-Polder potential in the presence of a Fock state
• Lateral interatomic dispersion forces
• Dipole-dipole Interactions Through a Lens
• Nested Open Quantum Systems Approach to Photonic Bose$-$Einstein Condensation
• Thermodynamic perspective on quantum fluctuations
• Casimir-Polder potential on an excited atom near an atomic array