Analysis of imperfections in the coherent optical excitation of single atoms to Rydberg states

By Sylvain de L'es'eleuc, D. Barredo, Vincent Lienhard, Antoine Browaeys, Thierry Lahaye. 2018

183 citations recorded by the source corpus.

We study experimentally various physical limitations and technical imperfections that lead to damping and finite contrast of optically driven Rabi oscillations between ground and Rydberg states of a single atom. Finite contrast is due to preparation and detection errors, and we show how to model and measure them accurately. Part of these errors originates from the finite lifetime of Rydberg states, and we observe its n 3 scaling with the principal quantum number n. To explain the damping of Rabi oscillations, we use simple numerical models taking into account independently measured experimental imperfections and show that the observed damping actually results from the accumulation of several small effects, each at the level of a few percent. We discuss prospects for improving the coherence of ground-Rydberg Rabi oscillations in view of applications in quantum simulation and quantum information processing with arrays of single Rydberg atoms.

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

View Paper: https://www.semanticscholar.org/paper/1124441adb5232786f336510e1fd39bac42346e3

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Observing the Space- and Time-Dependent Growth of Correlations in Dynamically Tuned Synthetic Ising Models with Antiferromagnetic Interactions (2017, methodology): “The experimental system features several sources of imperfections [51], and the description of its evolution as a pure Hamiltonian is not exact.”
Ytterbium Nuclear-Spin Qubits in an Optical Tweezer Array (2021, background): “2% fractional intensity errors for similar pulse lengths [53] would correspond to an error rate of < 10−6.”
An Atomic-Array Optical Clock with Single-Atom Readout (2019, methodology): “quency noise traces in the time domain [47] for use in the Monte Carlo simulation.”
Quantum simulation and computing with Rydberg-interacting qubits (2020, methodology): “This is due to a combination of many small eﬀects, all of which can be overcome, including phase and intensity noise on the Rydberg excitation lasers, diﬀerential light shifts due to the tweezer traps and motion of the atoms (Doppler dephasing) 107,108,125 .”