599 citations · 1.3k across the 12 of their papers we have counts for
12 papers
Quantum-mechanics free subsystem with mechanical oscillators
Laure Mercier de Lépinay, Caspar F. Ockeloen-Korppi, Matthew J. Woolley +1
Quantum mechanics sets a limit for the precision of continuous measurement of the position of an oscillator. Here we show how it is possible to measure an oscillator without quantu…
Nonreciprocal transport based on cavity Floquet modes in optomechanics
Laure Mercier de Lépinay, Caspar F. Ockeloen-Korppi, Daniel Malz +1
Directional transport is obtained in various multimode systems by driving multiple, nonreciprocally-interfering interactions between individual bosonic modes. However, systems sust…
Realization of directional amplification in a microwave optomechanical device
L. Mercier de Lépinay, E. Damskägg, C. F. Ockeloen-Korppi +1
Directional transmission or amplification of microwave signals is indispensable in various applications involving sensitive measurements. In this work we show in experiment how to…
Sideband cooling of nearly degenerate micromechanical oscillators in a multimode optomechanical system
C. F. Ockeloen-Korppi, M. F. Gely, E. Damskägg +3
Multimode optomechanical systems are an emerging platform for studying fundamental aspects of matter near the quantum ground state and are useful in sensitive sensing and measureme…
Revealing hidden quantum correlations in an electromechanical measurement
C. F. Ockeloen-Korppi, E. Damskägg, G. S. Paraoanu +2
Under a strong quantum measurement, the motion of an oscillator is disturbed by the measurement back-action, as required by the Heisenberg uncertainty principle. When a mechanical…
Electrode configuration and electrical dissipation of mechanical energy in quartz crystal resonators
Alpo Valimaa, Jorge Santos, Caspar Ockeloen-Korppi +1
Mechanical resonators made with monolithic piezoelectric quartz crystals are promising for studying new physical phenomena. High mechanical quality factors () exhibited by the m…
Entangled massive mechanical oscillators
C. F. Ockeloen-Korppi, E. Damskagg, J. -M. Pirkkalainen +4
An entangled quantum state of two or more particles or objects exhibits some of the most peculiar features of quantum mechanics. Entangled systems cannot be described independently…
Noiseless quantum measurement and squeezing of microwave fields utilizing mechanical vibrations
C. F. Ockeloen-Korppi, E. Damskägg, J. -M. Pirkkalainen +3
A process which strongly amplifies both quadrature amplitudes of an oscillatory signal necessarily adds noise. Alternatively, if the information in one quadrature is lost in phase-…
Theory of noiseless phase-mixing amplification in a cavity optomechanical system
C. F. Ockeloen-Korppi, T. T. Heikkilä, M. A. Sillanpää +1
The investigation of the ultimate limits imposed by quantum mechanics on amplification represents an important topic both on a fundamental level and from the perspective of potenti…
Optomechanical measurement of a millimeter-sized mechanical oscillator near the quantum limit
J. T. Santos, J. Li, J. Ilves +2
Cavity optomechanics is a tool to study the interaction between light and micromechanical motion. Here we observe near-quantum limited optomechanical physics in a truly macroscopic…
Quantum back-action evading measurement of collective mechanical modes
C. F. Ockeloen-Korppi, E. Damskägg, J. -M. Pirkkalainen +3
The standard quantum limit constrains the precision of an oscillator position measurement. It arises from a balance between the imprecision and the quantum back-action of the measu…
Low-noise amplification and frequency conversion with a multiport microwave optomechanical device
C. F. Ockeloen-Korppi, E. Damskägg, J. -M. Pirkkalainen +3
High-gain amplifiers of electromagnetic signals operating near the quantum limit are crucial for quantum information systems and ultrasensitive quantum measurements. However, the e…