Zobrazeno 1 - 10
of 447
pro vyhledávání: '"Eschner J"'
Autor:
Bushev, P., Hetet, G., Slodicka, L., Rotter, D., Wilson, M. A., Schmidt-Kaler, F., Eschner, J., Blatt, R.
Publikováno v:
Phys. Rev. Lett. 110, 133602 (2013)
We perform high-resolution real-time read-out of the motion of a single trapped and laser-cooled Ba ion. By using an interferometric setup we demonstrate shot-noise limited measurement of thermal oscillations with resolution of 4 times the standard q
Externí odkaz:
http://arxiv.org/abs/1202.2307
Publikováno v:
New J. Phys. 15 (2013) 025033
We use a single trapped 40Ca+ ion as a resonant, polarization-sensitive absorber to detect and characterize the entanglement of tunable narrowband photon pairs from a spontaneous parametric down-conversion source. Single-photon absorption is marked b
Externí odkaz:
http://arxiv.org/abs/1111.1085
In the fluorescence light of a single atom, the probability for emission of a photon with certain polarization depends on the polarization of the photon emitted immediately before it. Here correlations of such kind are investigated with a single trap
Externí odkaz:
http://arxiv.org/abs/0911.4846
We present a photoionization method to load single 40Ca ions in a linear Paul trap from an atomic beam. Neutral Ca I atoms are resonantly excited from the ground state to the intermediate 4s4p 1P_1-level using coherent 423nm radiation produced by sin
Externí odkaz:
http://arxiv.org/abs/0911.3867
We present a scheme for stabilizing multiple lasers at wavelengths between 795 and 866 nm to the same atomic reference line. A reference laser at 852 nm is stabilized to the Cs D2 line using a Doppler-free frequency modulation technique. Through tran
Externí odkaz:
http://arxiv.org/abs/0910.1052
Autor:
Schuck, C., Rohde, F., Piro, N., Almendros, M., Huwer, J., Mitchell, M. W., Hennrich, M., Haase, A., Dubin, F., Eschner, J.
We observe the interaction of a single trapped calcium ion with single photons produced by a narrow-band, resonant down-conversion source [A. Haase et al., Opt. Lett. 34, 55 (2009)], employing a quantum jump scheme. Using the temperature dependence o
Externí odkaz:
http://arxiv.org/abs/0906.1719
Autor:
Almendros, M., Huwer, J., Piro, N., Rohde, F., Schuck, C., Hennrich, M., Dubin, F., Eschner, J.
We report a tunable single-photon source based on a single trapped ion. Employing spontaneous Raman scattering and in-vacuum optics with large numerical aperture, single photons are efficiently created with controlled temporal shape and coherence tim
Externí odkaz:
http://arxiv.org/abs/0905.3725
We report measurements of an intensity-field correlation function of the resonance fluorescence of a single trapped Ba+ ion. Detection of a photon prepares the atom in its ground state and we observe its subsequent evolution under interaction with a
Externí odkaz:
http://arxiv.org/abs/0901.3979
Autor:
Gerber, S., Rotter, D., Hennrich, M., Blatt, R., Rohde, F., Schuck, C., Almendros, M., Gehr, R., Dubin, F., Eschner, J.
We observe quantum interference of photons emitted by two continuously laser-excited single ions, independently trapped in distinct vacuum vessels. High contrast two-photon interference is observed in two experiments with different ion species, calci
Externí odkaz:
http://arxiv.org/abs/0810.1847
Publikováno v:
Phys. Rev. A 77, 053817 (2008)
When trapped atoms are illuminated by weak lasers, off-resonant transitions cause shifts in the frequencies of the vibrational-sideband resonances. These frequency shifts may be understood in terms of Stark-shifts of the individual levels or, as prop
Externí odkaz:
http://arxiv.org/abs/0801.1642