Broadband Measurement and Reduction of Quantum Radiation Pressure Noise in the Audio Band

Cripes experiment has provided a platform to demonstrate quantum measurement techniques that may reduce quantum radiation pressure noise in Advanced LIGO and Advanced Virgo detectors, allowing for the observation of non-classical behavior of macroscopic objects.

Format: Paperback / softback
Length: 140 pages
Publication date: 16 May 2021
Publisher: Springer Nature Switzerland AG

This book presents a groundbreaking direct measurement of quantum back action, also known as radiation pressure noise, on a macroscopic object at room temperature across a wide bandwidth in the audio range. This noise source was predicted to be a significant limitation for gravitational wave interferometers in the 1980s, but it has remained elusive due to the inherent challenge of reducing thermal fluctuations below the quantum back action level. This back action noise poses a potential constraint in Advanced LIGO and Advanced Virgo detectors, and the Cripes experiment has provided a platform for demonstrating quantum measurement techniques that can mitigate quantum radiation pressure noise in these detectors.

Furthermore, the experimental techniques developed by Cripe for this purpose have broader applications beyond gravitational wave interferometry. They can be applied to any continuous measurement operating near the quantum limit, potentially enabling the observation of non-classical behavior of macroscopic objects.

The significance of this research lies in its potential to unlock new insights into the fundamental nature of matter and energy. By studying the behavior of macroscopic objects in the quantum realm, scientists can gain a deeper understanding of the underlying principles that govern the universe at its most fundamental level. This could lead to the development of new technologies and materials with unprecedented properties, such as quantum computers and sensors that can detect and manipulate matter on a microscopic scale.

Moreover, the ability to reduce quantum radiation pressure noise in gravitational wave detectors has significant implications for the field of astrophysics. Gravitational wave interferometers are used to detect and study gravitational waves, which are ripples in spacetime caused by the acceleration of massive objects. By reducing the noise in these detectors, scientists can improve the sensitivity and accuracy of their measurements, allowing them to detect and study gravitational waves from a wider range of sources and with greater precision.

In conclusion, this book presents a groundbreaking measurement of quantum back action on a macroscopic object at room temperature across a broad bandwidth in the audio range. The experimental techniques developed by Cripe have the potential to revolutionize our understanding of matter and energy, and they have significant implications for the field of astrophysics. The ability to reduce quantum radiation pressure noise in gravitational wave detectors has the potential to improve our ability to detect and study gravitational waves, leading to new insights into the universe and the development of innovative technologies.

Weight: 454g
Dimension: 235 x 155 (mm)
ISBN-13: 9783030450335
Edition number: 1st ed. 2020