We report the creation of thermal, Fock, coherent, and squeezed states of motion of a
harmonically bound 9Be1 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 ...

Quantum mechanics allows for many-particle wavefunctions that cannot be factorized into a
product of single-particle wavefunctions, even when the constituent particles are entirely
distinct. Such 'entangled'states explicitly demonstrate the non-local character of quantum ...

A" Schrödinger cat"-like state of matter was generated at the single atom level. A trapped
9Be+ ion was laser-cooled to the zero-point energy and then prepared in a superposition of
spatially separated coherent harmonic oscillator states. This state was created by ...

The quantum Zeno effect is the inhibition of transitionsbetween qua» t, ill» st.; I. t, es by
flcqucllt. measurements of the state. The inhibition arises because the measurement. causes
a. colla. pse (reduction) of the wave function. If the time between measurements is short ...

Among the numerous types of architecture being explored for quantum computers are
systems utilizing ion traps, in which quantum bits (qubits) are formed from the electronic
states of trapped ions and coupled through the Coulomb interaction. Although the ...

Abstract: Methods for, and limitations to, the generation of entangled states of trapped atomic
ions are examined. As much as possible, state manipulations are described in terms of
quantum logic operations since the conditional dynamics implicit in quantum logic is ...