Showing papers by "Howard J. Carmichael published in 2009"
TL;DR: Measurements of an intensity-field correlation function of the resonance fluorescence of a single trapped 138Ba+ ion provide a direct measurement of the field of the radiating dipole of asingle atom and exhibits its strong nonclassical behavior.
Abstract: We report measurements of an intensity-field correlation function of the resonance fluorescence of a single trapped $^{138}\mathrm{Ba}^{+}$ ion. Detection of a photon prepares the atom in its ground state, and we observe its subsequent evolution under interaction with a laser field of well-defined phase. We record the regression of the resonance fluorescence source field. This provides a direct measurement of the field of the radiating dipole of a single atom and exhibits its strong nonclassical behavior. In the setup, an interference measurement is conditioned on the detection of a fluorescence photon.
46 citations
TL;DR: A scheme for the teleportation of a beam of light including its temporal fluctuations is proposed and expressions for the teleported degrees of first- and second-order optical coherence are presented.
Abstract: A scheme for the teleportation of a beam of light including its temporal fluctuations is proposed. Expressions for the teleported degrees of first- and second-order optical coherence are presented. Teleportation of an antibunched photon stream illustrates the proposal.
13 citations
01 Jan 2009
TL;DR: Q 11.
Abstract: Q 11 S Inoue and G Bjork: Experimental demonstration of exposure-free imaging and contrast amplification J Opt B: Quantum Semiclass Opt 2, 338–345 (2000) 12 P G Kwiat: “Experimental and theoretical progress in interaction-free measurements” Phys Scripta T76, 115 (1998) 13 G Mitchison, S Massar: Absorption-free discrimination between semitransparent objects Phys Rev A 63, 032105 (2001) 14 G Mitchison, R Jozsa: Counterfactual computation Proc R Soc Lond A457, 1175–1193 (2001) 15 O Hosten, M T Rakher, J T Barreiro, N A Peters, P G Kwiat: Counterfactual quantum computation via quantum interrogation Nature 439, 939 (2006) 16 L K Grover: Quantum mechanics helps in searching for a needle in a haystack Phys Rev Lett 79, 325–328 (1997)
2 citations
02 Jun 2009
TL;DR: The conditional dynamics of 85Rb atoms in a driven two-mode optical cavity showed quantum beats from ground state Larmor precession. as discussed by the authors studied the manipulation and control of their fringe visibility.
Abstract: The conditional dynamics of 85Rb atoms in a driven two-mode optical cavity shows quantum beats from ground state Larmor precession. We study the manipulation and control of their fringe visibility.