Mining the quantum: frustration, disorder, and devices

Project funded by Croatian Science Foundation (HRZZ) (Research Projects), grant IP-2025-02-1667. Participating organisations named by the source: Ruđer Bošković Institute. Funded amount: EUR 197,783, as stated by the source. Runs 2026-01-19 to 2029-01-18. Keywords: Frustration, Quantum Computing, Quantum Battery, Quantum Spin Glass, Localization, Disorder. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2026-07-23); national funding data, not CORDIS. Abstract given by the source: This project aims to advance our understanding and control of quantum effects in many-body, strongly correlated systems. We will focus on three interconnected research directions, all related to a novel phase of quantum matter called Topological Frustration (TF), which is characterized by ground states hosting single, fractionalized, topological excitations.First, we will apply a recently introduced measure of quantum complexity to study TF in different realizations, deepening our understanding of its quantum advantage. In the second work package, we will use the properties of TF systems to design new quantum technologies. This includes developing quantum batteries that outperform non-frustrated counterparts and creating methods to encode qubits non-locally, protecting them from local noise. These systems can be applied to quantum memory or computation, and we will evaluate their merits and limitations.Finally, we will investigate the combination of TF and disorder to analyze the resulting phases. Preliminary work suggests that disorder can induce a many-body localized phase, allowing us to study long-range interactions. In other cases, it leads to an amorphous phase with properties typical of a quantum spin glass. Unlike traditional quantum spin glass models, which are complex and difficult to handle in large systems, TF-based models are simpler and more tractable. This opens new possibilities for studying this intriguing and elusive quantum state.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Croatian Science Foundation (HRZZ). Retrieved 2026-10-22. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The project "Mining the quantum: frustration, disorder, and devices" is funded by the Croatian Science Foundation with a grant of EUR 197,783, running from January 19, 2026, to January 18, 2029, focusing on quantum effects in many-body systems. Suggested technology pillar: computing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.