Coherent manipulation of motional states of trapped ions
نویسنده
چکیده
The beam splitter and phase shifter, which are the key elements in the experiments of light interference, are realized in the motion of trapped ions. Some applications, such as the creation of quantum motional states and the realization of Mach-Zehnder interferometer, are illustrated. Several detection methods of motional states used in the interferometer are also discussed.
منابع مشابه
Experiments towards quantum information with trapped Calcium ions
Ground state cooling and coherent manipulation of ions in an rf-(Paul) trap is the prerequisite for quantum information experiments with trapped ions. With resolved sideband cooling on the optical S1/2 -D5/2 quadrupole transition we have cooled one and two Ca ions to the ground state of vibration with up to 99.9% probability. With a novel cooling scheme utilizing electromagnetically induced tra...
متن کاملSympathetic ground-state cooling and coherent manipulation with two-ion crystals
We have cooled a two-ion crystal to the ground-state of its collective modes of motion. Laser cooling, more specifically resolved sideband cooling, is performed sympathetically by illuminating only one of the two 40Ca ions in the crystal. The heating rates of the motional modes of the crystal in our linear trap have been measured, and we found them considerably smaller than those previously rep...
متن کاملGeneration of nonclassical motional states of a trapped atom.
We report the creation of thermal, Fock, coherent, and squeezed states of motion of a harmonically bound 9 Be + ion. The last three states are coherently prepared from an ion which has been initially laser-cooled to the zero-point of motion. The ion is trapped in the regime where the coupling between its motional and internal states, due to applied (classical) radiation, can be described by a J...
متن کامل0 v 1 1 1 A pr 1 99 6 Dark pair coherent states of the motion of a trapped ion
We propose a scheme for generating vibrational pair coherent states of the motion of an ion in a two-dimensional trap. In our scheme, the trapped ion is excited bichromatically by three laser beams along different directions in the X-Y plane of the ion trap. We show that if the initial vibrational state is given by a two-mode Fock state, the final steady state, indicated by the extinction of th...
متن کاملDouble-EIT ground-state laser cooling without blue-sideband heating
– We discuss a laser cooling scheme for trapped atoms or ions which is based on double electromagnetically induced transparency (EIT) and makes use of a four-level atom in tripod configuration. The additional fourth atomic state is coupled by a strong coupling laser field to the usual three-level setup of single-EIT cooling. This effectively allows to create two EIT structures in the absorption...
متن کامل