English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Superiority of heterodyning over homodyning: An assessment with quadrature moments

MPS-Authors
/persons/resource/persons201135

Mueller,  C. R.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201174

Sanchez-Soto,  L. L.
Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
Univ Complutense, Fac Fis, Dept Opt, Complutense University of Madrid;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Teo, Y. S., Mueller, C. R., Jeong, H., Hradil, Z., Rehacek, J., & Sanchez-Soto, L. L. (2017). Superiority of heterodyning over homodyning: An assessment with quadrature moments. PHYSICAL REVIEW A, 95(4): 042322. doi:10.1103/PhysRevA.95.042322.


Cite as: http://hdl.handle.net/21.11116/0000-0000-803E-A
Abstract
We examine the moment-reconstruction performance of both the homodyne and heterodyne (doublehomodyne) measurement schemes for arbitrary quantum states and introduce moment estimators that optimize the respective schemes for any given data. In the large-data limit, these estimators are as efficient as the maximum-likelihood estimators. We then illustrate the superiority of the heterodyne measurement for the reconstruction of the first and second moments by analyzing Gaussian states and many other significant nonclassical states. Finally, we present an extension of our theories to two-mode sources, which can be straightforwardly generalized to all other multimode sources.