| Full text | |
| Author(s): |
Barbosa, F. A. S.
;
Coelho, A. S.
;
Cassemiro, K. N.
;
Martinelli, M.
;
Nussenzveig, P.
;
Villar, A. S.
Total Authors: 6
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW A; v. 102, n. 6, p. 14-pg., 2020-12-07. |
| Abstract | |
The quantum noise in photocurrent fluctuations usually gives incomplete information about the quantum state of spectral sideband modes of bright light beams involved in the detection. Each frequency component of the noise spectrum corresponds to two sideband modes symmetrically located around the bright optical field. In the case of the usual homodyne detection, it limits the ability to recover discriminated information of each mode involved. We theoretically show that complete reconstruction of the two-mode quantum state can be obtained by using phase-locked (coherent) resonator detection, even for non-Gaussian states. We experimentally demonstrate the technique by measuring a two-mode displaced coherent state. (AU) | |
| FAPESP's process: | 10/08448-2 - Quantum information with continuous variables of atoms and light |
| Grantee: | Paulo Alberto Nussenzveig |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 09/52157-5 - Teleportation of quantum information between different colors |
| Grantee: | Marcelo Martinelli |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 15/18834-0 - Exploring quantum information with atoms, crystals and chips |
| Grantee: | Marcelo Martinelli |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 10/52282-1 - Quantum information processing with continuous variables |
| Grantee: | Marcelo Martinelli |
| Support Opportunities: | Regular Research Grants |