57 citations · 183 across the 9 of their papers we have counts for
9 papers
Iterative Adaptive Spectroscopy of Short Signals
Avishek Chowdhury, Anh Tuan Le, Eva M. Weig +1
We develop an iterative, adaptive frequency sensing protocol based on Ramsey interferometry of a two-level system. Our scheme allows one to estimate unknown frequencies with a high…
Vectorial polaritons in the quantum motion of a levitated nanosphere
A. Ranfagni, P. Vezio, M. Calamai +3
The strong coupling between elementary excitations of the electromagnetic field (photons) and quantized mechanical vibrations (phonons) produces hybrid quasi-particle states, known…
Quantum motion of a squeezed mechanical oscillator attained via a optomechanical experiment
P. Vezio, A. Chowdhury, M. Bonaldi +7
We experimentally investigate a mechanical squeezed state realized in a parametrically-modulated membrane resonator embedded in an optical cavity. We demonstrate that a quantum cha…
Probing quantum gravity effects with quantum mechanical oscillators
M. Bonaldi, A. Borrielli, A. Chowdhury +13
Phenomenological models aiming to join gravity and quantum mechanics often predict effects that are potentially measurable in refined low-energy experiments. For instance, modified…
Weak signal enhancement by non-linear resonance control in a forced nano-electromechanical resonator
Avishek Chowdhury, Marcel G. Clerc, Sylvain Barbay +2
Driven non-linear resonators can display sharp resonances or even multistable behaviours amenable to induce strong enhancements of weak signals. Such enhancements can make use of t…
Quantum signature of a squeezed mechanical oscillator
A. Chowdhury, P. Vezio, M. Bonaldi +7
Some predictions of quantum mechanics are in contrast with the macroscopic realm of everyday experience, in particular those originated by the Heisenberg uncertainty principle, enc…
Calibrated quantum thermometry in cavity optomechanics
A Chowdhury, P Vezio, M Bonaldi +9
Cavity optomechanics has achieved the major breakthrough of the preparation and observation of macroscopic mechanical oscillators in peculiarly quantum states. The development of r…
Phase Stochastic Resonance in a forced nano-electromechanical oscillator
Avishek Chowdhury, Sylvain Barbay, Marcel G. Clerc +2
Stochastic resonance is a general phenomenon usually observed in one-dimensional, amplitude modulated, bistable systems.We show experimentally the emergence of phase stochastic res…
Imaging correlations in heterodyne-detected spectra for quantum sensing
A. Pontin, J. E. Lang, A. Chowdhury +6
The extraordinary sensitivity of the output field of an optical cavity to small quantum-scale displacements has led to breakthroughs such as the first detection of gravitational wa…