### Abstract

We review different aspects of atom–atom and atom–wall Casimir–Polder forces. We first discuss the role of a boundary condition on the interatomic Casimir–Polder potential between two ground-state atoms, and give a physically transparent interpretation of the results in terms of vacuum fluctuations and image atomic dipoles. We then discuss the known atom–wall Casimir–Polder force for ground- and excited-state atoms, using a different method which is also suited to extension to time-dependent situations. Finally, we consider the fluctuation of the Casimir–Polder force between a ground-state atom and a conducting wall, and discuss possible observation of this force fluctuation.

Original language | English |
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Pages (from-to) | 164031-1-164031-7 |

Number of pages | 7 |

Journal | JOURNAL OF PHYSICS. A, MATHEMATICAL AND THEORETICAL |

Volume | 41 |

Publication status | Published - 2008 |

### All Science Journal Classification (ASJC) codes

- Statistical and Nonlinear Physics
- Statistics and Probability
- Modelling and Simulation
- Mathematical Physics
- Physics and Astronomy(all)

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## Cite this

Spagnolo, S., Rizzuto, L., Passante, R., & Messina, R. (2008). Casimir-Polder forces, boundary conditions and fluctuations.

*JOURNAL OF PHYSICS. A, MATHEMATICAL AND THEORETICAL*,*41*, 164031-1-164031-7.