Communication Cost in Simulating Unknown Entangled States

• URL: http://arxiv.org/abs/2402.11610v1
• Date: Sun, 18 Feb 2024 15:01:37 GMT
• Title: Communication Cost in Simulating Unknown Entangled States
• Authors: Kelvin Onggadinata, Pawel Kurzynski, Dagomir Kaszlikowski
• Abstract summary: We show how to universally simulate ensemble statistics of projective local measurements on any $n$-qubit state shared among $n$ observers. Our technique originates from protocols designed to simulate quantum non-locality.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We demonstrate how to universally simulate ensemble statistics of projective local measurements on any $n$-qubit state shared among $n$ observers with classical communication and shared randomness. Our technique originates from protocols designed to simulate quantum non-locality [in Horizons of the Mind, Springer, Cham (2014)] and classical simulation of quantum circuits [Phys. Rev. Lett. 115, 070501 (2015)]. The protocol preserves three crucial aspects of the simulated quantum scenario in contrast to other approaches: no involvement of additional parties, none of the observers knows the global state of the system, and local measurement settings remain undisclosed.

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