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Magnetomechanical Platforms for Quantum Experiments and Quantum Enabled Sensing Technologies

Deliverables

Mid-Term Report 2 on WP5 milestones: Towards sensors, QIP architectures, fundamental tests

Report on M21 Proposals for quantum enabled force sensing for ultra-small forces (surface forces, gravity, Casimir forces) Towards M23 Proof-of-concept demonstration of magnetomechanical inertial sensor Towards M24 Theoretical investigation of magnetomechanical architectures for quantum information processing (e.g. quantum memory/transduction) Towards M28 Proposals for fundamental tests at the interface between quantum physics and gravity involving Tasks 5.1, 5.3, 5.4, 5.5

Final Report on WP3 milestones: strong coupling to a cantilever

Report on M13 Modelling, fabrication, characterisation of on-chip inductively coupled superconducting circuits (LC resonator, qubits) M14 Demonstrate magnetomechanical coupling to superconducting circuit M15 Observation of ultra-strong magnetomechanical coupling to a superconducting cantilever And other Milestones as necessary Involving tasks 3.6, 3.7

Mid-Term Report 2 on WP4 milestones: Ground state cooling, single-photon coupling

Report on M18 Observation of magneto mechanical ground state cooling of a superconducting micro-object M19 Demonstrate long coherence times (>ms) for levitated superconducting micro-objects M20 Observation of strong coupling between single micro-wave photons and a superconducting cantilever Towards M22 Demonstrate coherent wavepacket manipulation through dynamic control of levitation potential Towards M26 Demonstrate preparation/validation of non-Gaussian mechanical states And other Milestones as necessary Involving tasks 2.2, 2.3, 2.4, 2.5, 2.6

Technical Action Check Meeting 1

Agenda and list of presentations delivered delivered during Technical Meeting Action Check Meeting

Dissemination and Exploitation Plan

This deliverable will include the Consortium plan to allow third parties to access, exploit, reproduce and disseminate the data generate during the project (free of charge). These dissemination activities will be performed during the first and second reporting period and after the end of the project. It will also include an interim version for the exploitation plan (Month 36).

Industry Workshop Report: ‘Cryogenic Vibration Isolation for Science and Industry’

Report/Minutes from an Industry Workshop: ‘Cryogenic Vibration Isolation for Science and Industry’ held jointly with Industry Partner Attocube

Final Report on WP2 milestones: readout of ultra-stable levitation

Report on M11 Demonstrate low vibration levels (<10-15m/Hz0.5) at trap frequency M12 Demonstrate readout of ultra-stable magnetic levitation (mK temps) And other Milestones as necessary involving tasks 2.5, 2.6

First Scientific Action Check Meeting 1

Agenda and list of presentations delivered during First Scientific Action Check Meeting 1

Mid-Term Report on WP2 milestones: Fabrication of traps and micro-objects

Report on M2 Modelling, fabrication, characterisation of cryogenic, superconducting micro-trap architectures M3 Fabrication, characterization of superconducting nano/micro-objects M6 Magnetic levitation of a single, superconducting micro-object M7 Modelling and design of low-vibration cryogenic platform for mK temperatures operation Towards M11 Demonstrate low vibration levels (<10^-15m/Hz^0.5) at trap frequency Towards M12 Demonstrate readout of ultra-stable magnetic levitation (mK temps) Involving tasks 2.1, 2.2, 2.3, 2.4, 2.5, 2.6

Mid-Term Report on WP3 milestones: Fabrication of cantilevers and high-Q

Report on M4 Modelling, fabrication, characterisation of superconducting cantilever M8 Magnetic-flux based detector for mechanical readout M9 Demonstration of ultra-high-Q magnetomechanical motion (Q ~ 1010) Towards M13 Modelling, fabrication, characterisation of on-chip inductively coupled superconducting circuits (LC resonator, qubits) Towards M14 Demonstrate magnetomechanical coupling to superconducting circuit Towards M15 Observation of ultra-strong magnetomechanical coupling to a superconducting cantilever involving tasks 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7

Mid-Term Report 1 on WP5 milestones: Towards proposals for quantum enabled force sensing

Towards M21 Proposals for quantum enabled force sensing for ultra-small forces (surface forces, gravity, Casimir forces) involving task 5.3

Mid-Term Report 1 on WP4 milestones: Theory for potential engineering

Report on M10 Development of a theoretical toolbox for engineering the levitation potential of superconducting micro-objects involving task 4.1

Data Management Plan

Report detailing consortium Data Management Plan finished, detailing what data the consortium will generate, whether and how it will be exploited or made accessible for verification and re-use, and how it will be curated and preserved. This will comprise a database of published measurements, a database of laboratory equipment used during measurements, a list of expertise in the different institutions used in the project, and a compendium of all project results and reports.

Website available via Internet

Creation of the MaQSens professional project website to serve as the information point for the project

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Publications

Negative permeability in magnetostatics and its experimental demonstration

Author(s): Rosa Mach-Batlle, Albert Parra, Jordi Prat-Camps, Sergi Laut, Carles Navau, Alvaro Sanchez
Published in: Physical Review B, Issue 96/9, 2017, ISSN 2469-9950
DOI: 10.1103/physrevb.96.094422

Ultrawide-range photon number calibration using a hybrid system combining nano-electromechanics and superconducting circuit quantum electrodynamics

Author(s): Philip Schmidt, Daniel Schwienbacher, Matthias Pernpeintner, Friedrich Wulschner, Frank Deppe, Achim Marx, Rudolf Gross, Hans Huebl
Published in: Applied Physics Letters, Issue 113/15, 2018, Page(s) 152601, ISSN 0003-6951
DOI: 10.1063/1.5052414

Magnetic Illusion: Transforming a Magnetic Object into Another Object by Negative Permeability

Author(s): Rosa Mach-Batlle, Albert Parra, Sergi Laut, Nuria Del-Valle, Carles Navau, Alvaro Sanchez
Published in: Physical Review Applied, Issue 9/3, 2018, ISSN 2331-7019
DOI: 10.1103/PhysRevApplied.9.034007

Bistability in a mesoscopic Josephson junction array resonator

Author(s): P. R. Muppalla, O. Gargiulo, S. I. Mirzaei, B. Prasanna Venkatesh, M. L. Juan, L. Grünhaupt, I. M. Pop, G. Kirchmair
Published in: Physical Review B, Issue 97/2, 2018, ISSN 2469-9950
DOI: 10.1103/physrevb.97.024518