testing macroscopic quantum mechanics mqm with future gw detectors n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors PowerPoint Presentation
Download Presentation
Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors

Loading in 2 Seconds...

play fullscreen
1 / 14

Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors - PowerPoint PPT Presentation


  • 143 Views
  • Uploaded on

Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors . Haixing Miao . University of Western Australia (UWA). A brief report of theoretical works by the LIGO-MQM discussion group : Albert Einstein Institute : Helge Müller-Ebhardt , and Roman Schnable

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors' - wayne


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
testing macroscopic quantum mechanics mqm with future gw detectors

Testing Macroscopic Quantum Mechanics (MQM) with Future GW Detectors

Haixing Miao

University of Western Australia (UWA)

A brief report of theoretical works by the LIGO-MQM discussion group:

  • Albert Einstein Institute: HelgeMüller-Ebhardt, and Roman Schnable
  • Caltech: Yanbei Chen, Ting Hong, KentaroSomiya,Kip Thorne and Huan Yang
  • MIT: Thomas Corbitt, NergisMavalvala, and Christopher Wipf

Moscow State University: Stefan Danilishin, and FaridKhalili

  • UWA: Haixing Miao, ChunnongZhao, and Zhongyang Zhang
we are not alone
We are not alone:-)

1

Yale

UCSB

Vienna

MIT

LIGO

GWADW 17th May – 21st May, 2010

From ng up to kg

Caltech

AEI

CLIO

LKB

UWA

  • Optomechanics:
motivations
Motivations

2

GWADW 17th May – 21st May, 2010

>>Quantum-limited measurement of weak forces and beyond

>>Quantum-to-classical transition

>>Quantum information with mechanical devices

how quantum a gw d etector is
How quantum a GW detector is?

3

Order-of-magnitude estimate:

Detector sensitivity:

De Broglie wavelength:

How about thermal decoherence? --- It is just a matter of timing.

GWADW 17th May – 21st May, 2010

a simplified model of noise budget
A simplified model of noise budget

4

Three interesting frequencies:

GWADW 17th May – 21st May, 2010

an analogy understanding
An analogy: understanding

5

GWADW 17th May – 21st May, 2010

increase

Increase shutter speed:

increase

Increase resolution:

i preparing pure quantum state
(I) Preparing pure quantum state

6

Increase

GWADW 17th May – 21st May, 2010

>>

Pure state: occupying an area in the phase space

ii studying quantum dynamics
(II) Studying quantum dynamics

7

GWADW 17th May – 21st May, 2010

Modifying test-mass dynamics:

Optical Spring

Quantitative results:

If , squeezing “breaths” for 5 cycles.

q uantum entanglement
Quantum entanglement

8

GWADW 17th May – 21st May, 2010

iii light test mass entanglement
(III) Light & test mass entanglement

9

“Classical” analogy:

GWADW 17th May – 21st May, 2010

Open

Choice

Infer

Light & test mass:

Light

Test Mass

Steerability

iv entanglement among test masses
(IV) Entanglement among test masses

10

Scheme I

Scheme II

GWADW 17th May – 21st May, 2010

Entangling TMs in two arms

Entangling ITMs and ETMs

Comment:

A long survival time allows us to study

various decoherence effects, e.g, the

thermal and also gravity decoherence.

Survival time (s)

v teleporting quantum states
(V) Teleporting quantum states

11

Hanford

Livingston

GWADW 17th May – 21st May, 2010

Create a coupled pendulum

and the quantum states swap.

conclusions
Conclusions

12

>> GW detectors can be fancy tools for probing MQM.

>> We have outlined possible MQM experiments.

>>A sub-SQL classical noise window is essential.

GWADW 17th May – 21st May, 2010

the end
The end

13

GWADW 17th May – 21st May, 2010

Interested in the technical details?

Join the CLIO-MQM workshop at Tokyo!

Thank you!