Speaker
Alice Pagano
(University of Padova)
Description
Decoherence and crosstalk are two adversaries when aiming to parallelize a quantum algorithm: on the one hand, the execution of gates in parallel reduces decoherence due to a shorter runtime, but on the other hand, parallel gates in close proximity are vulnerable to crosstalk. This challenge is visible in Rydberg atom quantum computers where atoms experience strong van der Waals interactions decaying with distance. We demonstrate how the preparation of a 64-qubit GHZ state is affected by crosstalk in the closed system with the help of a tensor network digital twin of a Rydberg atom QPU. Then, we compare the error from crosstalk to the decoherence effects proving the necessity to parallelize algorithms.
| Abstract category | Quantum Computing |
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Primary author
Alice Pagano
(University of Padova)
Co-authors
Dr
Daniel Jaschke
(University of Ulm)
Dr
Sebastian Weber
(University of Stuttgart)
Prof.
Simone Montangero
(University of Padova)