STA-Mediated Interferometry with a Single Trapped Particle

Area of Science:

• Quantum optics
• Atomic physics
• Precision measurement

Background:

• Shortcuts to adiabaticity (STA) techniques accelerate adiabatic dynamics.
• Interferometry with single trapped particles enables precise measurements.
• Previous schemes for STA-mediated interferometry had limitations, such as requiring potential rotation.

Purpose of the Study:

• To review and update schemes for interferometry using STA with single trapped particles.
• To introduce a new protocol for STA-mediated interferometry using a shaken optical lattice.
• To expand interferometric measurement capabilities beyond force detection.

Main Methods:

• Utilizing STA techniques to guide interferometer arms.
• Employing single trapped ions or atoms in harmonic potentials.
• Generating spin-dependent forces via off-resonant lasers or shaken optical lattices.
• Implementing interferometry for weak force detection and mass measurement.

Main Results:

• Achieved stability and independence from motional states in the small-oscillation regime.
• Developed faster-than-adiabatic processes with controllable sensitivity.
• Introduced a practical scheme without potential rotation.
• Demonstrated a new protocol using a shaken optical lattice for broader applications.

Conclusions:

• The updated STA-mediated interferometry schemes offer enhanced stability and broader applicability.
• The new shaken optical lattice protocol enables additional measurements, such as ion mass.
• These advancements improve precision measurement techniques in quantum systems.