Project description
Testing quantum mechanics at unprecedented scales
The universal validity of the quantum superposition principle is an open question with far-reaching implications for science and technology. Testing and exploiting quantum physics with objects of ever-increasing mass and complexity requires extremely low temperatures and perfectly isolated environments to avoid decoherence. One of the most promising platforms for next-generation quantum superposition tests is provided by levitating nanoscale dielectric particles in ultra-high vacuum and controlling their motion with lasers. Funded by the Marie Skłodowska-Curie programme, the ELOTEQ project will develop novel schemes to perform trapped quantum superposition tests, coherently interfacing a charged nanoparticle with superconducting qubits. Project results will significantly contribute to testing quantum mechanics at an unprecedented mass and complexity scale.
Objective
The aim of this project is to establish how the quantum state of an aspherical nanoparticle can be coherently interfaced with a superconducting circuit. Its main efforts can be summarized by two goals: (i) We will develop the theoretical tools required to manipulate the ro-translational quantum state of a levitated nanoparticle possessing a monopole and higher multipole moments by connecting it to a superconducting qubit. (ii) We will investigate how entanglement between the nanoparticle and the circuit can be exploited for earth-based macroscopic interference experiments and for coherence-enhanced force and torque sensing. Networking levitated nanoscale objects with quantized electrical circuits and qubits combines the high Q-factors and isolation of the former with the scalability and control of the latter. This project will point the way towards new fundamental tests of quantum physics and towards quantum technology.
Fields of science
- natural sciencesphysical sciencesopticscavity optomechanics
- natural sciencesphysical sciencesquantum physics
- engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computers
- engineering and technologynanotechnologynano-materials
- natural sciencesphysical scienceselectromagnetism and electronicssuperconductivity
Programme(s)
Funding Scheme
MSCA-IF-EF-ST - Standard EFCoordinator
SW7 2AZ LONDON
United Kingdom