Projects per year
Abstract
We introduce a highdimensional quantum encoding based on coherent modedependent singlephoton subtraction from multimode squeezed states. This encoding can be seen as a generalization to the case of nonzero squeezing of the standard singlephoton multirail encoding. The advantage is that the presence of squeezing enables the use of common tools in continuousvariable quantum processing, which in turn allows to show that arbitrary $d$level quantum states can be generated and detected via simply tuning the classical fields that gates the photonsubtraction scheme. Therefore, the scheme is suitable for mapping arbitrary classical data in quantum mechanical form. Regardless the dimension of the data set alphabet, the mapping is conditioned on the subtraction of a single photon only, making it nearly unconditional. We prove that this encoding can be used to calculate vector distances, a pivotal primitive in various quantum machine learning algorithms.
Original language  English 

Article number  022342 
Number of pages  11 
Journal  Physical Review A (Atomic, Molecular, and Optical Physics) 
Volume  99 
Issue number  2 
DOIs  
Publication status  Published  28 Feb 2019 
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Projects
 1 Finished

R1664TCP: NonLinearity as a Universal Resource for Quantum Computation over Continuous Variables
19/09/2016 → 31/03/2018
Project: Research