TY  - JOUR
AU  - Biagi, N.
AU  - Francesconi, S.
AU  - Gessner, M.
AU  - Bellini, M.
AU  - Zavatta, A.
PY  - 2022
DA  - 2022//
TI  - Remote Phase Sensing by Coherent Single Photon Addition
T2  - Adv. Quantum Technol.
JO  - Advanced Quantum Technologies
SP  - 2200039
EP  - 9pp
VL  - 5
IS  - 12
PB  - Wiley
KW  - quantum optics
KW  - quantum state engineering
KW  - remote quantum sensing
AB  - A remote phase sensing scheme is proposed, inspired by the high sensitivity of the entanglement produced by coherent multimode photon addition on the phase set in the remote heralding apparatus. By exploring the case of delocalized photon addition over two modes containing identical coherent states, the optimal observable to perform remote phase estimation from heralded quadrature measurements is derived. The technique is experimentally tested with calibration measurements and then used for estimating a remote phase with a sensitivity that is found to scale with the intensity of the local coherent states, which never interacted with the sample.
UR  - https://arxiv.org/abs/2108.11827
UR  - https://doi.org/10.1002/qute.202200039
DO  - 10.1002/qute.202200039
LA  - English
N1  - WOS:000865838800001
ID  - Biagi_etal2022
ER  -