Title :
Quantum-enhanced phase estimation in the presence of loss
Author :
Demkowicz-Dobrzanski, R. ; Kacprowicz, M. ; Wasilewski, W. ; Banaszek, K. ; Dorner, U. ; Smith, B.J. ; Lundeen, J.S. ; Walmsley, Ian A.
Author_Institution :
Inst. of Phys., Nicolaus Copernicus Univ., Torun, Poland
Abstract :
The paper reports the proof-of-principle experimental quantum-enhanced phase estimation. The measurement is based on specifically designed two-photon states that maximize the amount of information about the detected phase in the presence of loss.
Keywords :
optical losses; phase estimation; quantum noise; quantum optics; two-photon processes; loss; phase detection; quantum-enhanced phase estimation; two-photon states; Costs; Histograms; Laboratories; Measurement standards; Optical interferometry; Phase estimation; Phase measurement; Physics; Propagation losses; State estimation;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192119
