Projects per year
Abstract
This paper addresses a simple question: how small can one make a gravitational source mass and still detect its gravitational coupling to a nearby test mass? We describe an experimental scheme based on micromechanical sensing to observe gravity between milligram-scale source masses, thereby improving the current smallest source mass values by three orders of magnitude and possibly even more. We also discuss the implications of such measurements both for improved precision measurements of Newton's constant and for a new generation of experiments at the interface between quantum physics and gravity.
Original language | English |
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Article number | 125031 |
Number of pages | 19 |
Journal | Classical and Quantum Gravity |
Volume | 33 |
Issue number | 12 |
DOIs | |
Publication status | Published - 24 May 2016 |
Austrian Fields of Science 2012
- 103028 Theory of relativity
Keywords
- micromechanics
- precision measurement
- force sensing
- gravitational constant
- THERMAL NOISE
- MECHANICAL RESONATOR
- CHARGE MEASUREMENT
- NEWTONS CONSTANT
- GRAVITY
- SEARCH
- INTERFEROMETER
- RELATIVITY
- MICROSCOPY
- BALANCE
Fingerprint
Dive into the research topics of 'A micromechanical proof-of-principle experiment for measuring the gravitational force of milligram masses'. Together they form a unique fingerprint.Projects
- 4 Finished
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QLev4G: Quantum control of levitated massive mechanical systems: a new approach for gravitational quantum physics
Aspelmeyer, M. & Paulovics, V.
1/06/15 → 31/05/20
Project: Research funding
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cQOM: Cavity Quantum Optomechanics
Aspelmeyer, M. & Paulovics, V.
1/06/12 → 31/05/16
Project: Research funding
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FoQuS III - P14: Simulation of strongly correlated quantum systems
Verstraete, F., Walther, P. & Paulovics, V.
1/01/09 → 31/12/18
Project: Research funding