2019
DOI: 10.1103/physrevlett.122.071101
|View full text |Cite
|
Sign up to set email alerts
|

Demonstration of Displacement Sensing of a mg-Scale Pendulum for mm- and mg-Scale Gravity Measurements

Abstract: Gravity generated by large masses has been observed using a variety of probes from atomic interferometers to torsional balances. However, gravitational coupling between small masses has never been observed so far. Here, we demonstrate sensitive displacement sensing of the Brownian motion of an optically trapped 7-mg pendulum motion whose natural quality factor is increased to 10 8 through dissipation dilution. The sensitivity for an integration time of one second corresponds to the displacement generated by th… Show more

Help me understand this report
View preprint versions

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

5
78
0

Year Published

2019
2019
2024
2024

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 63 publications
(83 citation statements)
references
References 36 publications
5
78
0
Order By: Relevance
“…Cavity optomechanics [1], exploring the interaction between light and mechanical systems, has made a profound impact in recent years due to its wide variety of applications including optomechanical sensors. Optomechanical sensors have achieved ultrasensitive performance in gravitational wave detection [2,3], high-precision measurements [4], detection for mass [5], acceleration [6], displacement [7], and force [8][9][10][11]. For practical applications, the optomechanical system is unavoidably coupled with its surroundings, leading to a non-Hermitian optomechanical system.…”
Section: Introductionmentioning
confidence: 99%
“…Cavity optomechanics [1], exploring the interaction between light and mechanical systems, has made a profound impact in recent years due to its wide variety of applications including optomechanical sensors. Optomechanical sensors have achieved ultrasensitive performance in gravitational wave detection [2,3], high-precision measurements [4], detection for mass [5], acceleration [6], displacement [7], and force [8][9][10][11]. For practical applications, the optomechanical system is unavoidably coupled with its surroundings, leading to a non-Hermitian optomechanical system.…”
Section: Introductionmentioning
confidence: 99%
“…On the experimental side, the situation is equally bleak. Quantum gravity, if such an entity exists, plays a role at the respective Planck length, time, or energy scales of approximately 10 −35 m, 10 −44 s, and 10 19 GeV. Direct experimental access to these extraordinary scales is not possible in the foreseeable future.…”
Section: Introductionmentioning
confidence: 99%
“…A benchmark would be to prepare a quantum state in an oscillator whose mass exceeds the mass equivalent of about 20 μg of the Planck energy, which represents a plausible crossover above which quantum states have been hypothesized to decohere [14,15]. Experimental preparations have been going on to cool oscillators with these heavy effective masses towards the motional ground state [16][17][18][19][20][21]. Microwave cavity optomechanics [22] offers another possibility as a side product from the more complex scheme we discuss below.…”
Section: Introductionmentioning
confidence: 99%
“…Cavity optomechanics (COM) systems [1,2] (as a milestone [3] in optics history), which investigates the interaction of electromagnetic fields and micromechanical motion, have witnessed significant progress over the past decade both in fundamental studies and practical applications including ground state cooling [4][5][6][7][8], mass sensing [9,10], high-precision measurements [11][12][13][14][15][16][17], and quantum information processing [18][19][20][21]. The mechanical motions in COM systems, due to the radiation pressure forces, are tunable by optomechanical interactions, which in turn influence the optical medes resulting in prominent quantum interference effects.…”
Section: Introductionmentioning
confidence: 99%