Manipulation and detection of a trapped Yb+ hyperfine qubit

By S. Olmschenk, K. Younge, D. Moehring, Dzmitry N. Matsukevich, Peter Maunz, Christopher Monroe. 2007

431 citations recorded by the source corpus.

We demonstrate the use of trapped ytterbium ions as quantum bits for quantum information processing. We implement fast, efficient state preparation and state detection of the first-order magnetic field-insensitive hyperfine levels of $^{171}\mathrm{Yb}^{+}$, with a measured coherence time of $2.5\phantom{\rule{0.3em}{0ex}}\mathrm{s}$. The high efficiency and high fidelity of these operations is accomplished through the stabilization and frequency modulation of relevant laser sources.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/1f36320c6b24d3db0a865f2cdb055e39d96f1d09

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Modular entanglement of atomic qubits using photons and phonons (2014, background): “Detection error of a single atom in an ion trap module is limited by off-resonant pumping from the F = 1 to the F = 0 manifold of the (2)S1/2 ground state through the F = 1 manifold of the (2)P1/2 excited state [17], and is ∼ 1% in the experiments presented here.”
Demonstration of qubit operations below a rigorous fault tolerance threshold with gate set tomography (2016, methodology): “the ion and prepare it in the |0〉 state [40].”
Demonstration of a small programmable quantum computer with atomic qubits (2016, methodology): “A computation is performed by first initializing all qubits to state |0〉 through optical pumping [27].”
Colloquium: Quantum networks with trapped ions (2010, background): “We concentrate on the 171 Yb + atomic system ͑Balzer et al., 2006; Olmschenk et al., 2007͒ , following ion or photon experiments, but there are other satisfactory atomic ion candidates for this purpose.”
An elementary quantum network of single atoms in optical cavities (2012, background): “Entanglement lifetimes on the order of seconds can be expected when mapping the Zeeman qubit to magnetic-field-insensitive clock states using microwave or Raman pulses [29].”
Quantum computing with trapped ions (2008, background): “In specific cases, coherence times longer then the gate time by more than five orders of magnitude have been demonstrated (Langer et al., 2005; Olmschenk et al., 2007; Lucas et al., 2007; Benhelm et al., 2008a).”
Realization of a Quantum Integer-Spin Chain with Controllable Interactions (2014, background): “We expect that, independent of laserinduced decoherence, the coherence times within this subspace could reach seconds [54], since the magnetic field noise ΔBðtÞ will introduce the same second-order effects as in the case of the hyperfine “clock” qubit.”
Experimental test of the quantum Jarzynski equality with a trapped-ion system (2014, methodology): “Here P± ↑ (t) is experimentally measured through the qubit-state dependent fluorescence [38, 39].”
Quantum random number generators (2016, methodology): “, 2010) was implemented with trapped ion qubits (Olmschenk et al., 2007) in order to close the detection loophole.”
Random numbers certified by Bell’s theorem (2009, neutral): “[25] S.”