# Design of microresonators to minimize thermal noise below the standard quantum limit.

@article{Sharifi2020DesignOM, title={Design of microresonators to minimize thermal noise below the standard quantum limit.}, author={Safura Sharifi and Yaser Mohammadi Banadaki and Torrey Cullen and Georgios Veronis and Jonathan P. Dowling and Thomas R. Corbitt}, journal={The Review of scientific instruments}, year={2020}, volume={91 5}, pages={ 054504 } }

Microfabricated resonators play a crucial role in the development of quantum measurement, including future gravitational wave detectors. We use a micro-genetic algorithm and a finite element method to design a microresonator whose geometry is optimized to maximize the sub-Standard Quantum Limit (SQL) performance including lower thermal noise (TN) below the SQL, a broader sub-SQL region, and a sub-SQL region at lower frequencies. For the proposed design, we study the effects of different…

## 7 Citations

Optomechanical entanglement at room temperature: A simulation study with realistic conditions

- PhysicsPhysical Review A
- 2020

Quantum entanglement is the key to many applications like quantum key distribution, quantum teleportation, and quantum sensing. However, reliably generating quantum entanglement in macroscopic…

Towards classification of experimental Laguerre–Gaussian modes using convolutional neural networks

- PhysicsOptical Engineering
- 2020

Abstract. Automated detection of orbital angular momentum (OAM) can tremendously contribute to quantum optical experiments. We develop convolutional neural networks to identify and classify noisy…

Research and Development for Third-Generation Gravitational Wave Detectors

- PhysicsHandbook of Gravitational Wave Astronomy
- 2021

Power Spectral Density Analysis of Nanowire-Anchored Fluctuating Microbead Reveals a Double Lorentzian Distribution

- PhysicsMathematics
- 2021

In this work, we investigate the properties of a stochastic model, in which two coupled degrees of freedom are subordinated to viscous, elastic, and also additive random forces. Our model, which…

Utilizing single-mode squeezing and non-Gaussianity metrics to investigate bipartite and tripartite entanglement in three-mode ponderomotive optomechanics simulations

- Physics
- 2021

Quantum entanglement is a crucial resource for a wide variety of quantum technologies. However, the current state-of-art methods to generate quantum entanglement in optomechanical systems are not as…

Single-mode input squeezing and tripartite entanglement in three-mode ponderomotive optomechanics simulations

- Physics
- 2021

Quantum entanglement is a crucial resource for a wide variety of quantum technologies. However, the current state-of-art methods to generate quantum entanglement in optomechanical systems are not as…

Optical actuation of a micromechanical photodiode via the photovoltaic-piezoelectric effect

- Physics, Materials ScienceMicrosystems & nanoengineering
- 2021

The photovoltaic-piezoelectric effect has important potential applications, such as in the development of configurable optical circuits, which can be used in neuromorphic photonic chips, processing of big data with deep learning and theDevelopment of quantum circuits.

## References

SHOWING 1-10 OF 53 REFERENCES

Observation of a room-temperature oscillator's motion dominated by quantum fluctuations over a broad audio-frequency band

- Physics
- 2018

We report on the broadband measurement of quantum radiation pressure noise (QRPN) in an optomechanical cavity at room temperature over a broad range of frequencies relevant to gravitational-wave…

Improving Broadband Displacement Detection with Quantum Correlations

- Physics
- 2017

Interferometers enable ultrasensitive measurement in a wide array of applications from gravitational wave searches to force microscopes. The role of quantum mechanics in the metrological limits of…

Cavity optomechanics with low-noise crystalline mirrors

- PhysicsNanoScience + Engineering
- 2012

Cavity optomechanics is a rapidly evolving field operating at the intersection of solid-state physics and modern optics. The fundamental process at the heart of this interdisciplinary endeavor is the…

Continuous force and displacement measurement below the standard quantum limit

- PhysicsNature Physics
- 2019

Quantum mechanics dictates that the precision of physical measurements must always comply with certain noise constraints. In the case of interferometric displacement measurements, these restrictions…

Approaching the Quantum Limit of a Nanomechanical Resonator

- PhysicsScience
- 2004

By coupling a single-electron transistor to a high–quality factor, 19.7-megahertz nanomechanical resonator, position detection approaching that set by the Heisenberg uncertainty principle limit is demonstrated and the near-ideal performance of the single-Electron transistor as a linear amplifier is demonstrated.

Dual-resonator speed meter for a free test mass

- Physics
- 2000

A description and analysis are given of a “speed meter” for monitoring a classical force that acts on a test mass. This speed meter is based on two microwave resonators (“dual resonators”), one of…

Radiation-pressure-mediated control of an optomechanical cavity

- Physics
- 2017

We describe and demonstrate a method to control a detuned movable-mirror Fabry-Perot cavity using radiation pressure in the presence of a strong optical spring . At frequencies below the optical…

Enhancing the Bandwidth of Gravitational-Wave Detectors with Unstable Optomechanical Filters.

- PhysicsPhysical review letters
- 2015

This work considers embedding an active unstable filter inside the interferometer to compensate the phase, and using feedback control to stabilize the entire system, and shows that this scheme in principle can enhance the bandwidth without sacrificing the peak sensitivity.

An analysis of a QND speed-meter interferometer

- Physics
- 2001

In the quest to develop viable designs for third-generation optical interferometric gravitationalwave detectors (e.g. LIGO-III and EURO), one strategy is to monitor the relative momentum or speed of…

Quantum Nondemolition Measurements

- PhysicsScience
- 1980

The new electronic techniques required for quantum nondemolition measurements and the theory underlying them are described and may find application elsewhere in science and technology.