Efficient qubit detection using alkaline-earth-metal ions and a double stimulated Raman adiabatic process

2007/08/31 by Ditte Møller, Ditte Sloth Møller, Jens L. Sørensen +4
Computer Science · Physics and Astronomy · #Adiabatic process #Atomic physics #Ion #Laser #Optics #Physics #Polarization (electrochemistry) #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Rabi frequency #Raman scattering #Raman spectroscopy #Stimulated Raman adiabatic passage #quant-ph

paper · pdf · doi:10.1103/physreva.76.062321

14 pages, 15 figures

arxiv created 2007/10/10 · openalex publication_date 2007/12/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present a scheme for robust and efficient projection measurement of a qubit consisting of the two magnetic sublevels in the electronic ground state of alkaline-earth-metal ions. The scheme is based on two stimulated Raman adiabatic passages involving four partially coherent laser fields. We show how the efficiency depends on experimentally relevant parameters: Rabi frequencies, pulse widths, laser linewidths, one- and two-photon detunings, residual laser power, laser polarization, and ion motion.

Citations

• Spin-Dependent Forces on Trapped Ions for Phase-Stable Quantum Gates and Entangled States of Spin and Motion
• Trapped-ion quantum logic utilizing position-dependent ac Stark shifts
• Measurement of Conditional Phase Shifts for Quantum Logic
• Coherent population transfer among quantum states of atoms and molecules
• Quantum Computing with Spatially Delocalized Qubits
• Scalable multi-particle entanglement of trapped ions
• Microfabricated Surface-Electrode Ion Trap for Scalable Quantum Information Processing
• Quantum information processing with trapped ions
• Robust entanglement