A Novel, Robust Quantum Detection Scheme

Abstract

Protocols used in quantum information and precision spectroscopy rely on efficient internal quantum state discrimination. With a single ion in a linear Paul trap, we implement a novel detection method which utilizes correlations between two detection events with an intermediate spin-flip. The technique is experimentally characterized as more robust against fluctuations in detection laser power compared to conventionally implemented methods. Furthermore, systematic detection errors which limit the Rabi oscillation contrast in conventional methods are overcome.

References in corpus (11)

• Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
• Quantum computing with trapped ions
• Manipulation and Detection of a Trapped Yb+ Ion Hyperfine Qubit
• 'Designer atoms' for quantum metrology
• Single-qubit-gate error below 10^-4 in a trapped ion
• Protocols for optimal readout of qubits using a continuous quantum nondemolition measurement
• Cavity-based single atom preparation and high-fidelity hyperfine state readout
• Direct frequency comb spectroscopy of trapped ions
• High-fidelity state detection and tomography of a single ion Zeeman qubit
• A Single Laser System for Ground-State Cooling of 25-Mg+
• Simulating the Quantum Magnet

Cited by in corpus (13)

• Non-destructive state detection for quantum logic spectroscopy of molecular ions
• Motional Fock states for quantum-enhanced amplitude and phase measurements with trapped ions
• Precision isotope shift measurements in Ca${}^{+}$ using highly sensitive detection schemes
• Precision spectroscopy by photon-recoil signal amplification
• Towards a Transportable Aluminium Ion Quantum Logic Optical Clock
• A cryogenic radio-frequency ion trap for quantum logic spectroscopy of highly charged ions
• Non-thermalization in trapped atomic ion spin chains
• Experimental and theoretical investigation of a multi-mode cooling scheme using multiple EIT resonances
• Scalable hyperfine qubit state detection via electron shelving in the ${}^2$D${}_{5/2}$ and ${}^2$F${}_{7/2}$ manifolds in ${}^{171}$Yb${}^{+}$
• State selective detection of hyperfine qubits
• Detection of motional ground state population of a trapped ion using delayed pulses
• Quantum jump photodetector for narrowband photon counting with a single atom
• Improving quantum state detection with adaptive sequential observations