English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Experimental demonstration of squeezed-state quantum averaging

MPS-Authors
/persons/resource/persons201172

Sabuncu,  Metin
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201059

Filip,  Radim
Max Planck Research Group, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201000

Andersen,  Ulrik L.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Lassen, M., Madsen, L. S., Sabuncu, M., Filip, R., & Andersen, U. L. (2010). Experimental demonstration of squeezed-state quantum averaging. PHYSICAL REVIEW A, 82(2): 021801. doi:10.1103/PhysRevA.82.021801.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6ACB-D
Abstract
We propose and experimentally demonstrate a universal quantum averaging process implementing the harmonic mean of quadrature variances. The averaged variances are prepared probabilistically by means of linear optical interference and measurement-induced conditioning. We verify that the implemented harmonic mean yields a lower value than the corresponding value obtained for the standard arithmetic-mean strategy. The effect of quantum averaging is experimentally tested for squeezed and thermal states as well as for uncorrelated and partially correlated noise sources. The harmonic-mean protocol can be used to efficiently stabilize a set of squeezed-light sources with statistically fluctuating noise levels.