Minimising quantum back action noise in quantum state tomography of cavities
This presentation is the property of its rightful owner.
Sponsored Links
1 / 13

Minimising Quantum Back-Action Noise in Quantum State Tomography of Cavities PowerPoint PPT Presentation


  • 46 Views
  • Uploaded on
  • Presentation posted in: General

Minimising Quantum Back-Action Noise in Quantum State Tomography of Cavities. Bence Börcsök Mentors : Rana Adhikari , Yanbei Chen and Nicolas Smith-Lefebvre. Quantum Tomography. Reconstructing the quantum state of the system Deduce the Wigner-function. Broadband cavity.

Download Presentation

Minimising Quantum Back-Action Noise in Quantum State Tomography of Cavities

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


Minimising quantum back action noise in quantum state tomography of cavities

Minimising Quantum Back-Action Noise in Quantum State Tomography of Cavities

Bence Börcsök

Mentors: RanaAdhikari, YanbeiChenand Nicolas Smith-Lefebvre


Quantum tomography

Quantum Tomography

  • Reconstructing the quantum state of the system

  • DeducetheWigner-function


Broadband cavity

Broadbandcavity


Cavity with finite bandwidth

Cavitywithfinitebandwidth


Homodyne detection

Homodynedetection


Homodyne detection1

Homodynedetection

Outgoingopticalfield:Local oscillator:Photocurrent:Signal:


Normalisation

Normalisation

We want:Constraints:


Result so far

Resultso far


Further work

Furtherwork

  • Calculatingthefullfilteringfunctionforboth quadratures

  • Obtainingthecovariancematrix

  • Comparingresultswithactualexperiments


Acknowledgement s

Acknowledgements

  • RanaAdhikari, YanbeiChenand Nicolas Smith-Lefebvre

  • BassamHelou

  • Michael Coughlin

  • Alan Weinstein


General method

General method


Solution in the frequency domain

Solutioninthefrequencydomain


  • Login