18 citations · 54 across the 5 of their papers we have counts for
8 papers
Tomography of an optomechanical oscillator via parametrically amplified position measurement
P. Warszawski, A. Szorkovszky, W. P. Bowen +1
We propose a protocol for quantum state tomography of nonclassical states in optomechanical systems. Using a parametric drive, the procedure overcomes the challenges of weak optome…
Mechanical Entanglement via Detuned Parametric Amplification
Alex Szorkovszky, Aashish A. Clerk, Andrew C. Doherty +1
We propose two schemes to generate entanglement between a pair of mechanical oscillators using parametric amplification. In contrast to existing parametric drive-based protocols, b…
Detuned Mechanical Parametric Amplification as a Quantum Non-Demolition Measurement
Alex Szorkovszky, Aashish A. Clerk, Andrew C. Doherty +1
Recently it has been demonstrated that the combination of weak-continuous position detection with detuned parametric driving can lead to significant steady-state mechanical squeezi…
Strong thermomechanical squeezing via weak measurement
Alex Szorkovszky, George A. Brawley, Andrew C. Doherty +1
We experimentally surpass the 3dB limit to steady state parametric squeezing of a mechanical oscillator. The localization of a AFM cantilever, achieved by optimal estimation, is en…
Position Estimation of a Parametrically Driven Optomechanical System
Alex Szorkovszky, Andrew C. Doherty, Glen I. Harris +1
We study the position estimation of a mechanical oscillator undergoing both detuned parametric amplification and continuous quantum measurement. This model, which can be utilised t…
Cavity Optomechanical Magnetometer
S. Forstner, S. Prams, J. Knittel +6
A cavity optomechanical magnetometer is demonstrated where the magnetic field induced expansion of a magnetostrictive material is transduced onto the physical structure of a highly…