Realization of an All-Optical Effective Negative-Mass Oscillator for Coherent Quantum Noise Cancellation

May 22, 2026·
Nived Johny
Equal contribution
,
Jonas Junker
Equal contribution
,
Bernd Schulte
,
Dennis Wilken
,
Klemens Hammerer
,
Michèle Heurs
· 0 min read
Figure 1 from Johny et al., PRX Quantum 7, 020335 (2026), licensed under CC BY 4.0.
Abstract
We realize an all-optical, tabletop effective negative-mass oscillator designed for coherent quantum noise cancellation. The compact and wavelength-flexible platform combines down-conversion and beam-splitting interactions and can be cascaded with an optomechanical sensor to suppress quantum back-action noise. Based on the measured system parameters, the experiment projects broadband quantum noise reduction of 3.6 dB, corresponding to a 77% reduction in quantum back-action noise at the optimum frequency.
Type
Publication
PRX Quantum 7, 020335 (2026)
Quantum Optics Coherent Quantum Noise Cancellation Effective Negative-Mass Oscillator Squeezed Light Quantum-Enhanced Sensing