Coherently manipulating cold ions in separated traps by their vibrational couplings
arXiv:1103.5670 · doi:10.1103/PhysRevA.83.064301
Abstract
Recent experiments [K. R. Brown, et al., Nature 471, 196 (2011); and M. Harlander, et al., Nature 471, 200 (2011)] have demonstrated the coherent manipulations on the external vibrations of two ions, confined individually in the separated ion traps. Using these recently developed techniques, we propose here an approach to realize the coherent operations, e.g., the universal quantum gates, between the separated ion-trap qubits encoded by two internal atomic states of the trapped ions. Our proposal operates beyond the usual Lamb-Dicke limits, and could be applied to the scalable ion traps coupled by their vibrations.
4 pages, 2 figures
References in corpus (12)
- Quantum Computation with Quantum Dots
- Quantum state engineering with Josephson-junction devices
- Quantum state transfer and entanglement distribution among distant nodes in a quantum network
- Scalable multi-particle entanglement of trapped ions
- Two-Bit Gates are Universal for Quantum Computation
- Multi-particle entanglement of hot trapped ions
- Coupled quantized mechanical oscillators
- Trapped-ion antennae for the transmission of quantum information
- Simplified quantum logic with trapped ions
- Engineering quantum pure states of a trapped cold ion beyond the Lamb-Dicke limit
- Quantum computation with two-level trapped cold ions beyond Lamb-Dicke limit
- Simplified approach to generate controlled-NOT gates with single trapped ions for arbitrary Lamb-Dicke parameters