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Continuous variable quantum teleportation in a dissipative environment: Comparison of non-Gaussian operations before and after noisy channel

Chandan KumarMohak SharmaShikhar Arora
Dec 2022
摘要
We explore the relative advantages in continuous-variable quantumteleportation when non-Gaussian operations, namely, photon subtraction,addition, and catalysis, are performed before and after interaction with anoisy channel. We generate the resource state for teleporting unknown coherentand squeezed vacuum states using two distinct strategies: (i) Implementation ofnon-Gaussian operations on TMSV state before interaction with noisy channel,(ii) Implementation of non-Gaussian operations after interaction of TMSV statewith noisy channel. The results show that either of the two strategies could bebeneficial than the other depending on the type of the non-Gaussian operation,initial squeezing of the TMSV state, and the parameters characterizing thenoisy channel. This strategy can be utilized to effectively improve theefficiency of various non-Gaussian continuous variable quantum informationprocessing tasks.
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