Quantum computing with trapped ions, atoms and light
arXiv:quant-ph/0004053 · doi:10.1002/1521-3978(200009)48:9/11<839::AID-PROP839>3.0.CO;2-V
Abstract
We first consider the basic requirements for a quantum computer, arguing for the attractiveness of nuclear spins as information-bearing entities, and light for the coupling which allows quantum gates. We then survey the strengths of and immediate prospects for quantum information processing in ion traps. We discuss decoherence and gate rates in ion traps, comparing methods based on the vibrational motion with a method based on exchange of photons in cavity QED. We then sketch the main features of a quantum computer designed to allow an algorithm needing 10^6 Toffoli gates on 100 logical qubits. We find that around 200 ion traps linked by optical fibres and high-finesse cavities could perform such an algorithm in a week to a month, using components at or near current levels of technology.
17 pages, for Fortschritte der Physik special issue
Cited by in corpus (14)
- Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms
- Engineering single atom and single photon sources from entangled atomic ensembles
- Layered architecture for quantum computing
- Linear Depth Stabilizer and Quantum Fourier Transformation Circuits with no Auxiliary Qubits in Finite Neighbor Quantum Architectures
- Optimal quantum chain communication by end gates
- Attacking the Quantum Internet
- Fast SWAP gate by adiabatic passage
- Communication Links for Distributed Quantum Computation
- Scalable Error Correction in Distributed Ion Trap Computers
- Decoherence-free creation of atom-atom entanglement in cavity via fractional adiabatic passage
- Atom-photon entanglement generation and distribution
- CNOT gate by adiabatic passage with an optical cavity
- Shor's Algorithm Does Not Factor Large Integers in the Presence of Noise
- Quantum computing with four-particle decoherence-free states in ion trap