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Strong single-photon radiation-pressure coupling for quantum optomechanics

Total Cost €


EC-Contrib. €






Project "STRONG-Q" data sheet

The following table provides information about the project.


Organization address
address: STEVINWEG 1
city: DELFT
postcode: 2628 CN

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 Netherlands [NL]
 Project website
 Total cost 1˙499˙970 €
 EC max contribution 1˙499˙970 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-03-01   to  2021-02-28


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNISCHE UNIVERSITEIT DELFT NL (DELFT) coordinator 1˙499˙970.00


 Project objective

While quantum physics is one of the most successful theories in modern science, it remains a puzzle why we do not observe quantum effects in our macroscopic every-day life. Quantum theory in fact does not pose an inherent limit on the size and mass of a quantum system. The field of optomechanics has been established with the explicit goal of testing massive, macroscopic quantum states. Here, the radiation-pressure force is used to bring a mechanical oscillator into a quantum state by coupling it to light. Most current experiments are however limited by either the optical or mechanical quality of the mechanical system, which so far have prevented a true breakthrough.

I will use two-dimensional photonic crystals on silicon nitride membranes to build a new generation of optomechanical systems, consisting of arrays of mechanical oscillators with high reflectivity and unprecedented mechanical quality. This will allow me to finally enter the single-photon strong coupling (SPSC) regime. This regime, which to date is far beyond experimental reach of any state-of-the-art system, will open up the possibility of true quantum experiments involving macroscopic mechanical objects. Preliminary experiments reveal that we can fabricate membranes of unparalleled optical and mechanical quality necessary for realizing STRONG-Q.

A fundamentally new approach combined with our novel devices will allow me to access the SPSC regime. I will be able to study superradiance, single-photon blockade and non-Gaussian states, explore avenues for phonon lasing, and perform quantum experiments that were up to now impossible. As enabling technologies I will build an entangled-photon source and highly efficient photodetectors.

With my expertise in (single-photon) quantum optics and optomechanics, and with TU Delft’s infrastructure as a leading institute in quantum technologies and microfabrication, the ultimate goal of this project to bring quantum physics into the macroscopic world is within reach.


year authors and title journal last update
List of publications.
2016 R. A. Norte, J. P. Moura, S. Gröblacher
Mechanical Resonators for Quantum Optomechanics Experiments at Room Temperature
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.116.147202
Physical Review Letters 116/14 2019-07-08
2018 R. A. Norte, M. Forsch, A. Wallucks, I. Marinković, S. Gröblacher
Platform for Measurements of the Casimir Force between Two Superconductors
published pages: 030405-1 until 0, ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.030405
Physical Review Letters 121/3 2019-07-08
2017 Jingkun Guo, Richard A. Norte, S. Gröblacher
Integrated optical force sensors using focusing photonic crystal arrays
published pages: 9196, ISSN: 1094-4087, DOI: 10.1364/oe.25.009196
Optics Express 25/8 2019-07-08
2017 Sungkun Hong, Ralf Riedinger, Igor Marinković, Andreas Wallucks, Sebastian G. Hofer, Richard A. Norte, Markus Aspelmeyer, Simon Gröblacher
Hanbury Brown and Twiss interferometry of single phonons from an optomechanical resonator
published pages: 203-206, ISSN: 0036-8075, DOI: 10.1126/science.aan7939
Science 358/6360 2019-07-08
2018 Claus Gärtner, João P. Moura, Wouter Haaxman, Richard A. Norte, Simon Gröblacher
Integrated Optomechanical Arrays of Two High Reflectivity SiN Membranes
published pages: 1-5, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b03240
Nano Letters September 24, 2018 2019-04-09
2018 Mikel Sanz, Witlef Wieczorek, Simon Gröblacher, Enrique Solano
Electro-mechanical Casimir effect
published pages: 91, ISSN: 2521-327X, DOI: 10.22331/q-2018-09-03-91
Quantum 2 2019-04-04

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