Non-Markovianity in atom-surface dispersion forces
- We discuss the failure of the Markov approximation in the description of atom-surface fluctuation-induced interactions, both in equilibrium (Casimir-Polder forces) and out of equilibrium (quantum friction). Using general theoretical arguments, we show that the Markov approximation can lead to erroneous predictions of such phenomena with regard to both strength and functional dependencies on system parameters. In particular, we show that the long-time power-law tails of two-time dipole correlations and their corresponding low-frequency behavior, neglected in the Markovian limit, affect the prediction of the force. Our findings highlight the importance of non-Markovian effects in dispersion interactions.
| Author details: | F. Intravaia, R. O. Behunin, Carsten HenkelORCiDGND, K. Busch, D. A. R. Dalvit |
|---|---|
| DOI: | https://doi.org/10.1103/PhysRevA.94.042114 |
| ISSN: | 2469-9926 |
| ISSN: | 2469-9934 |
| Title of parent work (English): | Physical review : A, Atomic, molecular, and optical physics |
| Publisher: | American Physical Society |
| Place of publishing: | College Park |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2016 |
| Publication year: | 2016 |
| Release date: | 2020/03/22 |
| Volume: | 94 |
| Number of pages: | 16 |
| Funding institution: | LANL LDRD program; Deutsche Forschungsgemeinschaft (DFG) within the Collaborative Research Center (CRC) Hybrid Inorganic/Organic Systems for Opto-Electronics (HIOS) [B10, 951]; European Union [PCIG14-GA-2013-631571]; DFG through the DIP program [SCHM 1049/7-1]; NSF MRSEC [DMR-1119826]; Packard Fellowship for Science and Engineering; Yale University |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
