332 citations · 580 across the 7 of their papers we have counts for
7 papers
Clamp-tapering increases the quality factor of stressed nanobeams
Mohammad J. Bereyhi, Alberto Beccari, Sergey A. Fedorov +5
Stressed nanomechanical resonators are known to have exceptionally high quality factors () due to the dilution of intrinsic dissipation by stress. Typically, the amount of dissi…
Generalized dissipation dilution in strained mechanical resonators
Sergey A. Fedorov, Nils J. Engelsen, Amir H. Ghadimi +4
Mechanical resonators with high quality factors are of relevance in precision experiments, ranging from gravitational wave detection and force sensing to quantum optomechanics. Bea…
Strain engineering for ultra-coherent nanomechanical oscillators
Amir H. Ghadimi, Sergey A. Fedorov, Nils J. Engelsen +4
Elastic strain engineering utilizes stress to realize unusual material properties. For instance, strain can be used to enhance the electron mobility of a semiconductor, enabling mo…
Dissipation engineering of high-stress silicon nitride nanobeams
A. H. Ghadimi, D. J. Wilson, T. J. Kippenberg
High-stress SiN nanoresonators have become an attractive choice for electro- and optomechanical devices. Membrane resonators can achieve quality factor () - frequency ($…
Appearance and disappearance of quantum correlations in measurement-based feedback control of a mechanical oscillator
Vivishek Sudhir, Dalziel J. Wilson, Ryan Schilling +5
Quantum correlations between imprecision and back-action are a hallmark of continuous linear measurements. Here we study how measurement-based feedback can be used to improve the v…
Near-field integration of a SiN nanobeam and a SiO microcavity for Heisenberg-limited displacement sensing
Ryan Schilling, Hendrik Schütz, Amir Ghadimi +3
Placing a nanomechanical object in the evanescent near-field of a high- optical microcavity gives access to strong gradient forces and quantum-noise-limited displacement readout…
Measurement and control of a mechanical oscillator at its thermal decoherence rate
D. J. Wilson, V. Sudhir, N. Piro +3
In real-time quantum feedback protocols, the record of a continuous measurement is used to stabilize a desired quantum state. Recent years have seen highly successful applications…