Continuous variable port-based teleportation

Jason L. Pereira; Leonardo Banchi; Stefano Pirandola

Continuous variable port-based teleportation

Jason L. Pereira, Leonardo Banchi, Stefano Pirandola

Computer Science

Research output: Working paper › Preprint

Abstract

Port-based teleportation is generalization of the standard teleportation protocol which does not require unitary operations by the receiver. This comes at the price of requiring $N>1$ entangled pairs, while $N=1$ for the standard teleportation protocol. The lack of correction unitaries allows port-based teleportation to be used as a fundamental theoretical tool to simulate arbitrary channels with a general resource, with applications to study fundamental limits of quantum communication, cryptography and sensing, and to define general programmable quantum computers. Here we introduce a general formulation of port-based teleportation in continuous variable systems and study in detail the $N=2$ case. In particular, we interpret the resulting channel as an energy truncation and analyse the kinds of channels that can be naturally simulated after this restriction.

Original language	English
Publication status	Accepted/In press - 16 Nov 2023

Bibliographical note

18 pages, 2 figures

Keywords

quant-ph
math-ph
math.MP

Access to Document

2302.08522v1

Cite this

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