Cross-Kerr effective Hamiltonian for a non-resonant four-level atom
| dc.creator | Sinclair, Gary F. | |
| dc.creator | Korolkova, Natalia | |
| dc.date | 2007-11-12 | |
| dc.date | 2007-11-28 | |
| dc.date.accessioned | 2026-07-07T08:45:15Z | |
| dc.date.available | 2026-07-07T08:45:15Z | |
| dc.description | We derive a cross-Kerr type effective Hamiltonian for the four-level atom interacting with three electromagnetic fields in the N-configuration. When the atom has relaxed into the ground state a cross-Kerr nonlinearity arises between two weak probe fields. As a development on earlier work we show in general that the atom will also display a linear and self-Kerr response. However, if certain resonance conditions are satisfied then the linear and self-Kerr interactions will vanish. The electrical susceptibilities of the probe transitions are also explored and it is shown that a large, pure cross-Kerr nonlinearity can be generated with vanishing absorption of both probe fields. | |
| dc.description | 7 pages, 4 figures, submitted to Phys. Rev. A, Replacement: added Acknowledgments section | |
| dc.identifier | https://arxiv.org/abs/0711.1808 | |
| dc.identifier | http://arxiv.org/abs/0711.1808 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/142910 | |
| dc.subject | Quantum Physics | |
| dc.title | Cross-Kerr effective Hamiltonian for a non-resonant four-level atom | |
| dc.type | text |