Theory of quantum nano-electromechanical systems (Q-NEMS)

Project funded by Swedish Research Council (Project grant), grant 2010-03958_VR. Participating organisations named by the source: University of Gothenburg. Funded amount: SEK 2,850,000, as stated by the source. Runs 2011-01-01 to 2013-12-31. Keywords: Oklassificerat, Unclassified. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-05); national funding data, not CORDIS. Abstract given by the source: The past decade has seen major advances in nano-electromechanics making MEMS, micro-electro-mechanical systems, rapidly evolve into NEMS, nano-electro-mechanical (NEM) systems, with potential cutting edge applications. The field is driven by the quest to detect and control mechanical motion of macroscopic objects in the quantum limit. This three-part project will theoretically study how electronic and mechanical degrees of freedom are coupled and investigate ways to realize, manipulate and probe quantum states of NEMS-structures: 1. Aharonov-Bohm-type polaronic states in resonator double-dot structures: Quantum dots created in a flexible nanowire suspended between two electrodes and influenced by gate electrodes make an ideal device for studying the entanglement of electronic and vibronic states due to a polaronic coupling. We will investigate the consequences for electron transport and optical properties. 2. Polaronic Andreev states in NEM superconducting weak links: In a vibrating-nanowire weak link between two superconductors a magnetic field induces a coupling that forms polaronic Andreev states. We will study the consequences, including nano-refrigeration and thermometry of the nanowire vibrations and novel functionalities of NEM-Josephson junction systems. 3. Microwave induced NEM entanglement: Microwave-induced entanglement between electronic quantum-dot states and vibrons will be studied and the possibility of microwave radiation sideband cooling will be explored.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-28. 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 "Theory of quantum nano-electromechanical systems (Q-NEMS)" was funded by the Swedish Research Council with a grant of SEK 2,850,000, running from January 1, 2011, to December 31, 2013, involving the University of Gothenburg. Suggested technology pillar: sensing. Generated by AI from the public source text; it may contain errors and the original source is authoritative.