High-precision three dimensional atom localization via multiphoton quantum destructive interference

Abstract

We propose an effective scheme for high-precision three dimensional(3D) atom localization via measuring the population of excited state in a four-level atomic system driven by a probe field and three orthogonal standing-wave fields. In this scheme, the position-dependent multiphoton quantum destructive interference leads to multiphoton excitation of the excited state and enhances the fluorescence emission. We show that adjusting the frequency detuning and phase shifts associated with the standing-wave fields can modify the multiphoton quantum destructive interference and lead to a redistribution of the atoms. The maximal probability of finding the atom at the certain position in one period of the standing-wave fields can be 100% and the highest spatial precision is about 0.02λ.

Phase-modulated single-photon nonreciprocal transport and directional router in a waveguide–cavity–emitter system beyond the chiral coupling

“…The incident photon will be completely absorbed by the cavity-emitter system. The direct transmission and re-emitted right-moving photons are disappeared due to quantum destructive interference [71,72] between three different transition pathways |Ψ + → |0; 0 , |Ψ 0 → |0; 0 , and |Ψ − → |0; 0 . These three transition pathways cannot form a cyclic energy-level structure, thus the phase φ can be completely eliminated in dressed states picture.…”

Coherent Control of Perfect Optical Vortex Through Four-Wave Mixing in an Asymmetric Semiconductor Double Quantum Well

“…On the other hand, based on the combination of electromagnetically induced transparency (EIT) and standing waves, spatially dependent light-matter interaction has led to many interesting quantum optical phenomena such as atom localization [36,37], electromagnetically induced grating [38], and controllable photonic band gaps [39]. In 2015, Radwell et al experimentally observed spatially dependent electromagnetically induced transparency via utilizing optical vortex beams to drive cold rubidium atoms [40].…”