Quantum Purification, Rejuvenation, and Availability

• Diego Abreu UFPA http://orcid.org/0000-0001-9221-7853
• David Tavares UFPA
• Antônio Abelém UFPA https://orcid.org/0000-0003-4085-6674
• Daniel Sadoc Menasche UFRJ https://orcid.org/0000-0002-8953-4003

DOI: https://doi.org/10.5753/wqunets.2025.9105

Abstract

Quantum networks heavily rely on entanglement purification to maintain the high fidelity of entangled quantum states. Traditional approaches to scheduling purification often overlook the network availability during purification processes. This paper proposes a new perspective by considering the time during which purification is performed as a period of unavailability for the affected parts of the network. By applying software rejuvenation principles, we aim to maximize network availability. Our main contribution is the development of a Markov chain model that captures the effects of purification on system downtime, considering both the time under failure and the time under rejuvenation.

Keywords: Quantum Purification, Rejuvenation

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