Terahertz quantum sensing with bilayer graphene quantum dots in resonators

Project funded by Swedish Research Council (Project grant), grant 2023-06205_VR. Participating organisations named by the source: Chalmers University of Technology. Funded amount: SEK 3,600,000, as stated by the source. Runs 2024-01-01 to 2026-12-31. Keywords: Naturvetenskap, Natural Sciences, Fysik, Physical Sciences, Atom- och molekylfysik och optik, Atom and Molecular Physics and Optics. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-04); national funding data, not CORDIS. Abstract given by the source: The emerging realm of quantum technologies promises unprecedented advances in fields such as sensing and high-performance computing. These technologies have been so far implemented predominantly in the microwave and optical regimes and have an untapped potential in the terahertz (THz) spectral range. "ThinQ" proposes a pioneering endeavor into the realm of terahertz (THz) quantum sensing. By leveraging the unique electronic properties of bilayer graphene quantum dots (BLG QDs) coupled to THz resonators, the project aims to develop a new technology for THz quantum sensing that goes beyond the standard quantum limit. The initiative is partitioned into two focus areas. The first concentrates on the development and characterization of THz photon detectors, utilizing BLG QDs coupled to a high-quality factor THz resonator to enhance light-matter interaction. The goal is to demonstrate THz photon detection with superior quantum efficiency and for single THz photon detection.The second embarks on quantum sensing beyond the standard quantum limit by harnessing non-classical light. Capitalizing on the strong coupling of a THz resonator with BLG DQD, we aim to generate THz squeezed light and to explore the ultra-strong coupling regime for the detection of non-classical states of THz light. By effectively integrating BLG QDs and THz resonators, "ThinQ" will thereby develop THz detectors with unmatched sensitivity and novel building blocks for quantum sensing with squeezed light.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. 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 "ThinQ" focuses on terahertz quantum sensing using bilayer graphene quantum dots in resonators, funded by the Swedish Research Council with SEK 3,600,000 from 2024 to 2026. It aims to advance technology in the terahertz spectral range. Suggested technology pillar: sensing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.