Initial experiments concerning quantum information processing in rare-earth-ion doped crystals

Abstract

In this paper initial experiments towards constructing simple quantum gates in a solid state material are presented. Instead of using specially tailored materials, the aim is to select a subset of randomly distributed ions in the material, which have the interaction necessary to control each other and therefore can be used to do quantum logic operations. The experimental results demonstrate that part of an inhomogeneously broadened absorption line can be selected as a qubit and that a subset of ions in the material can control the resonance frequency of other ions. This opens the way for the construction of quantum gates in rare-earth-ion doped crystals.

24 pages, including 12 figures

References in corpus (1)

• Measurement of conditional phase shifts for quantum logic

Cited by in corpus (19)

• Multimode quantum memory based on atomic frequency combs
• Advanced holeburning techniques for determination of hyperfine transition properties in inhomogeneously broadened solids applied to Pr3+:Y2SiO5
• Highly multimode memory in a crystal
• Quantum computing with an inhomogeneously broadened ensemble of ions: Suppression of errors from detuning variations by specially adapted pulses and coherent population trapping
• Scalable designs for quantum computing with rare-earth-ion-doped crystals
• State Preparation by Optical Pumping in Erbium Doped Solids using Stimulated Emission and Spin Mixing
• Coherent control of collective spontaneous emission in an extended atomic ensemble and quantum storage
• Robust quantum gates and a bus architecture for quantum computing with rare-earth-ion doped crystals
• Efficient and long-lived Zeeman-sublevel atomic population storage in an erbium-doped glass fiber
• Quantum storage on subradiant states in an extended atomic ensemble
• The field inside a random distribution of parallel dipoles
• Quantum memory for light using extended atomic ensembles in a tunable cavity
• High connectivity quantum processor nodes using single-ion-qubits in rare-earth-ion-doped crystals
• Rare Earth Ions Doped Mixed Crystals for Fast Quantum Computers with Optical Frequency Qubits
• Microscopic treatment of instantaneous spectral diffusion and its effect on quantum gate fidelities in rare-earth-ion-doped crystals
• Effects of ground state hyperfine shifts in quantum computing with optically hole burnt materials
• Backward retrieval in optical quantum memory controlled by an external field
• Site-selective enhancement of Eu emission in delta-doped GaN
• Designing gate operations for single ion quantum computing in rare-earth-ion-doped crystals