Dr. Gabriel Araneda Machuca: Publications

Position Measurement of a Levitated Nanoparticle via Interference with Its Mirror Image

Physical Review Letters American Physical Society (APS) 129:1 (2022) 013601

Authors:

Lorenzo Dania, Katharina Heidegger, Dmitry S Bykov, Giovanni Cerchiari, Gabriel Araneda, Tracy E Northup

A quantum network of entangled optical atomic clocks

(2021)

Authors:

BC Nichol, R Srinivas, DP Nadlinger, P Drmota, D Main, G Araneda, CJ Ballance, DM Lucas

Experimental quantum key distribution certified by Bell's theorem

(2021)

Authors:

DP Nadlinger, P Drmota, BC Nichol, G Araneda, D Main, R Srinivas, DM Lucas, CJ Ballance, K Ivanov, EY-Z Tan, P Sekatski, RL Urbanke, R Renner, N Sangouard, J-D Bancal

Measuring ion oscillations at the quantum level with fluorescence light

Physical Review Letters American Physical Society 127:6 (2021) 63603

Authors:

G Cerchiari, Gabriel Araneda Machuca, L Podhora, L Slodička, Y Colombe, R Blatt

Abstract:

We demonstrate an optical method for detecting the mechanical oscillations of an atom with single-phonon sensitivity. The measurement signal results from the interference between the light scattered by a trapped atomic ion and that of its mirror image. We detect the oscillations of the atom in the Doppler cooling limit and reconstruct average trajectories in phase space. We demonstrate single-phonon sensitivity near the ground state of motion after electronically induced transparency cooling. These results could be applied for motion detection of other light scatterers of fundamental interest, such as trapped nanoparticles.

Motion analysis of a trapped ion chain by single photon self-interference

Applied Physics Letters AIP Publishing 119:2 (2021) 024003

Authors:

G Cerchiari, Gabriel Araneda Machuca, L Podhora, L Slodička, Y Colombe, R Blatt

Abstract:

We present an optical scheme to detect the oscillations of a two-ion string confined in a linear Paul trap. The motion is detected by analyzing the intensity correlations in the fluorescence light emitted by one or two ions in the string. We present measurements performed under continuous Doppler cooling and under pulsed illumination. We foresee several direct applications of this detection method, including motional analysis of multi-ion species or coupled mechanical oscillators and sensing of mechanical correlations.

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