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Phononic Waveguide-based Platforms for Quantum Technologies

Total Cost €


EC-Contrib. €






 PWAQUTEC project word cloud

Explore the words cloud of the PWAQUTEC project. It provides you a very rough idea of what is the project "PWAQUTEC" about.

elastic    networks    waveguides    first    orbit    longitudinal    hybrid    form    realm    wqld    emitter    enlarged    vibrations    demonstrating    possibly    engineer    experimentally    crystal    photon    theory    counterpart    platforms    signal    spin    coupling    quanta    emitters    computer    investment    preferential    heat    technologies    chirality    forefront    designs    miniaturized    waveguide    nodes    elastodynamics    quantum    effiency    phenomenology    nonreciprocal    optimized    functionalities    media    continuous    full    dissipative    discrete    optomechanical    diodes    efforts    phononic    phonons    couplings    light    unattained    network    platform    space    last    operations    computing    incorporate    polarization    appealing    combination    photonic    lacking    arising    chiral    engineering    transistors    isolator    ideas    flow    modes    fundamental    obtaining    setups    correlations    realistic    bulksurface    phonon    lies    rules    protocols    direction    connectors    worldwide   

Project "PWAQUTEC" data sheet

The following table provides information about the project.


Organization address
city: WIEN
postcode: 1010

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Austria [AT]
 Total cost 178˙156 €
 EC max contribution 178˙156 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2017
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-04-01   to  2020-03-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The implementation of technologies based on the rules of the quantum realm lies at the forefront of worldwide research and investment efforts. A particularly appealing application is the design of an advanced computer where quantum nodes and connectors form a miniaturized processing network. So far, many designs have been proposed based on light or other systems, but not so far on the quanta of vibrations (phonons). In this project I will go beyond discrete phonon-photon (optomechanical) quantum systems into studying a full platform based on optimized phonon emitters in combination with continuous phononic media (i.e. waveguides), for whose a fundamental understanding at the quantum level is lacking. I aim at exploiting the richer phenomenology arising for elastic phonons (e.g. longitudinal polarization states, or hybrid bulksurface modes) to increase the effiency of protocols and devices beyond their photonic counterpart, possibly obtaining yet unattained functionalities. In the first part of this project I will develop a quantum theory of these Waveguide Elastodynamics (WQLD) platforms focusing on experimentally realistic setups. I will also incorporate the concept of phononic crystal and phononic chirality (spin-orbit coupling), and bring both these ideas to the quantum level. This will set up an enlarged parameter space for WQLD. In the second part of this project I will study simple quantum protocols, including operations on various phononic states and dissipative engineering of quantum correlations between phononic quantum emitters. Finally, in the last part I will focus on particular applications: first I will use nonreciprocal (chiral) waveguide-emitter couplings to engineer a heat isolator, which allows heat to flow along one preferential direction. Second, I will implement phononic devices for signal distribution in computing networks (e.g. diodes and transistors). My work aims at demonstrating the potential of WQLD platforms for quantum technologies.


year authors and title journal last update
List of publications.
2020 Carlos Gonzalez-Ballestero, Jan Gieseler, Oriol Romero-Isart
Quantum Acoustomechanics with a Micromagnet
published pages: https://dx.doi.o, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.124.093602
Physical Review Letters 124/9 2020-04-15
2018 A. E. Rubio López, C. Gonzalez-Ballestero, O. Romero-Isart
Internal quantum dynamics of a nanoparticle in a thermal electromagnetic field: A minimal model
published pages: 155405, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.155405
Physical Review B 98/15 2020-04-15
2019 Dominik Windey, Carlos Gonzalez-Ballestero, Patrick Maurer, Lukas Novotny, Oriol Romero-Isart, René Reimann
Cavity-Based 3D Cooling of a Levitated Nanoparticle via Coherent Scattering
published pages: 123601, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.122.123601
Physical Review Letters 122/12 2020-04-15
2019 C. Gonzalez-Ballestero, P. Maurer, D. Windey, L. Novotny, R. Reimann, O. Romero-Isart
Theory for cavity cooling of levitated nanoparticles via coherent scattering: Master equation approach
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.100.013805
Physical Review A 100/1 2020-04-15

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