Optimal Floquet state engineering for large scale atom interferometers

Area of Science:

• Quantum physics
• Atomic physics
• Quantum sensing

Background:

• Atom interferometry is crucial for quantum sensors and precision measurements.
• Performance relies on large wave packet separations.

Purpose of the Study:

• To present a novel approach for atomic beam splitters.
• To demonstrate a Large Momentum Transfer (LMT) interferometer with unprecedented momentum separation.

Main Methods:

• Stroboscopic stabilization of quantum states in an accelerated optical lattice.
• Generation of Floquet states using optimal control protocols.

Main Results:

• Demonstration of an unprecedented LMT interferometer with 600 photon recoils momentum separation.
• Beam splitters realized in 2 ms, showing robustness against velocity dispersion and lattice depth fluctuations.

Conclusions:

• Floquet engineering is a promising tool for large-scale quantum physics.
• Applications include advanced quantum sensing and fundamental physics testing.