Work

Quantum Channel Simulation in Fidelity is No More Difficult than State Splitting

Year: 2024

Type: conference-paper

Abstract: Characterizing the minimal communication needed for quantum channel simulation is a fundamental task in the quantum information theory. In this paper, we show that, in fidelity, the quantum channel simulation can be directly achieved via quantum state splitting without using a technique known as the de Finetti reduction, and thus provide a pair of tighter one-shot bounds. This opens up new potentials for higher-order analysis. Using the bounds, we also recover the quantum reverse Shannon theorem in a much simpler way.

Source: IEEE International Symposium on Information Theory (ISIT)

DOI: 10.1109/isit57864.2024.10619461

Authors: Michael X. Cao, Rahul Jain, Marco Tomamichel

Institutions: Centre for Quantum Technologies, National University of Singapore

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Research Foundation, Ministry of Education - Singapore, Technion-Israel Institute of Technology, Simons Institute for the Theory of Computing, University of California Berkeley

OpenAlex ID: W4401692544

FWCI: 1.176

Cites: 13

Cited by: 4

Related to: 10