Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Beyond Spectral Homodyne Detection: Complete Quantum Measurement of Spectral Modes of Light

Full text
Barbosa, F. A. S. [1] ; Coelho, A. S. [1] ; Cassemiro, K. N. [2] ; Nussenzveig, P. [1] ; Fabre, C. [3] ; Martinelli, M. [1] ; Villar, A. S. [2]
Total Authors: 7
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil
[2] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE - Brazil
[3] Univ Paris 06, Lab Kastler Brossel, F-75252 Paris 05 - France
Total Affiliations: 3
Document type: Journal article
Source: Physical Review Letters; v. 111, n. 20 NOV 14 2013.
Web of Science Citations: 13

Spectral homodyne detection a widely used technique for measuring quantum properties of light beams cannot retrieve all the information needed to reconstruct the quantum state of spectral field modes. We show that full quantum state reconstruction can be achieved with the alternative measurement technique of resonator detection. We experimentally demonstrate this difference by engineering a quantum state with features that go undetected by homodyne detection but are clearly revealed by resonator detection. (AU)

FAPESP's process: 10/08448-2 - Quantum information with continuous variables of atoms and light
Grantee:Paulo Alberto Nussenzveig
Support type: Research Projects - Thematic Grants
FAPESP's process: 09/52157-5 - Teleportation of quantum information between different colors
Grantee:Marcelo Martinelli
Support type: Regular Research Grants
FAPESP's process: 10/52282-1 - Quantum information processing with continuous variables
Grantee:Marcelo Martinelli
Support type: Regular Research Grants