Gravitational wave mirror experiments can evolve into quantum entities

Environmental noise and highly efficient sensors are required for quantum physical experiments that explore the motion of heavy bodies.

A mirror with high quantum efficiency is an ideal system. If the quantum uncertainties of light and mirror motion influence each other, then a quantum optomechanical experiment can be achieved.

The research on the correlation between quantum physics and gravity is examined in the research on the history of quantum technologies. The tiny space-time oscillations at audio-band frequencies and below require unprecedented sensitivities for measuring.

The team showed that it is possible to shield large objects, such as a 40-kilogram glass mirror reflecting 200 kilowatts of laser light, from strong influences from the thermal and seismic environment to allow them to evolve as one quantum object.

The mirror only sees the light and not the light itself. The environment is not suitable for the two of them.

Measurement sensitivities that would otherwise be impossible can be achieved thanks to the decoupling from the environment.

The researchers review intersects with the work of Roger Penrose. The connection between quantum physics and gravity is an open question.

Penrose thought of an experiment in which light and a mechanical device were combined. In their review, the researchers show that while the fundamental questions in physics are unresolved, the highly shielded coupling of massive devices that reflect laser light is beginning to improve sensor technology.

Researchers will likely explore further the effects of the environment on the detectors.

Decoupling quantum devices from thermal energy exchange with the environment is key. It is required for quantum measurement devices.

More information: Macroscopic quantum mechanics in gravitational-wave observatories and beyond, AVS Quantum Science, 2022. aip.scitation.org/doi/full/10.1116/5.0077548 Citation: Gravitational wave mirror experiments can evolve into quantum entities (2022, March 15) retrieved 17 March 2022 from https://phys.org/news/2022-03-gravitational-mirror-evolve-quantum-entities.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.