Back to Search
Start Over
Evading Vacuum Noise: Wigner Projections or Husimi Samples?
- Source :
-
Physical Review Letters . 8/12/2016, Vol. 117 Issue 7, p1-1. 1p. - Publication Year :
- 2016
-
Abstract
- The accuracy in determining the quantum state of a system depends on the type of measurement performed. Homodyne and heterodyne detection are the two main schemes in continuous-variable quantum information. The former leads to a direct reconstruction of the Wigner function of the state, whereas the latter samples its Husimi Q function. We experimentally demonstrate that heterodyne detection outperforms homodyne detection for almost all Gaussian states, the details of which depend on the squeezing strength and thermal noise. [ABSTRACT FROM AUTHOR]
- Subjects :
- *QUANTUM states
*HOMODYNE detection
*HETERODYNE detection
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 117
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 118978362
- Full Text :
- https://doi.org/10.1103/PhysRevLett.117.070801