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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

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Published on: May 30, 2014

State-Dependent Optical Lattices for the Strontium Optical Qubit.

A Heinz^1,2, A J Park^1,2, N Šantić^1,2

¹Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany.

Physical Review Letters

|June 6, 2020

Summary

This summary is machine-generated.

We developed state-dependent optical lattices for strontium optical qubits. This technique isolates qubit states, overcoming a major hurdle for quantum computing and simulation using strontium atoms.

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Area of Science:

Atomic, Molecular, and Optical Physics
Quantum Information Science
Quantum Simulation

Background:

Strontium (Sr) optical qubits are promising for quantum technologies.
Controlling qubit states independently is crucial for scalable quantum computation.
Inelastic collisions between excited state atoms pose a significant challenge.

Purpose of the Study:

To demonstrate state-dependent optical lattices for the Sr optical qubit.
To enable precise control over different atomic states.
To mitigate inelastic collisions in Sr-based quantum systems.

Main Methods:

Utilizing tune-out wavelengths for state-selective optical lattices.
Achieving high-contrast trapping of excited state atoms.
Minimizing lattice effects on ground state atoms (suppression > 4 orders of magnitude).

Main Results:

Demonstrated state-dependent optical lattices for the Sr optical qubit.
Achieved tight trapping of excited state atoms.
Significantly suppressed lattice interaction for ground state atoms.
Identified discrepancies in atomic data for Sr optical lattice clocks.

Conclusions:

State-dependent optical lattices effectively isolate Sr optical qubit states.
This method removes inelastic excited state collisions as a primary obstacle.
The findings are critical for advancing Sr optical qubit-based quantum simulation and computation.
Discrepancies in atomic data necessitate re-evaluation for Sr optical lattice clock calibration.