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Modular mechanical-atomic quantum systems

Total Cost €


EC-Contrib. €






Project "MODULAR" data sheet

The following table provides information about the project.


Organization address
address: PETERSPLATZ 1
city: BASEL
postcode: 4051

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 Switzerland [CH]
 Project website
 Total cost 1˙498˙961 €
 EC max contribution 1˙498˙961 € (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 2016-01-01   to  2020-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT BASEL CH (BASEL) coordinator 1˙498˙961.00


 Project objective

Atomic ensembles are routinely prepared and manipulated in the quantum regime using the powerful techniques of laser cooling and trapping. To achieve similar control over the vibrations of nanofabricated mechanical oscillators is a goal that is vigorously pursued, which recently led to the first observations of ground-state cooling and quantum behavior in such systems.

In this project, we will explore the new conceptual and experimental possibilities offered by hybrid systems in which the vibrations of a mechanical oscillator are coupled to an ensemble of ultracold atoms. An optomechanics setup and an ultracold atom experiment will be connected by laser light to generate long-distance Hamiltonian interactions between the two systems. This modular approach avoids the technical complications of combining a cryogenic optomechanics experiment and a cold atom experiment into a highly integrated setup. At the same time, it allows to investigate intriguing conceptual questions associated with the remote control of quantum systems.

The coupled mechanical-atomic system will be used for a range of experiments on quantum control and quantum metrology of mechanical vibrations. We will implement new schemes for ground-state cooling of mechanical vibrations that overcome some of the limitations of existing techniques, explore coherent mechanical-atomic interactions and Einstein-Podolsky-Rosen entanglement, and use such entanglement for measurements of mechanical vibrations beyond the standard quantum limit. The extensive experience of the PI in atomic quantum metrology and hybrid optomechanics will be a valuable asset in this endeavor.

Besides the interesting perspective of observing quantum phenomena in engineered mechanical devices that are visible to the bare eye, the project will open up new avenues for quantum measurement of mechanical vibrations with potential impact on the development of mechanical quantum sensors and transducers for accelerations, forces and fields.


year authors and title journal last update
List of publications.
2018 Aline Vochezer, Tobias Kampschulte, Klemens Hammerer, Philipp Treutlein
Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane
published pages: 73602, ISSN: 0031-9007, DOI: 10.1103/physrevlett.120.073602
Physical Review Letters 120/7 2019-07-08
2016 Aline Vochezer (née Faber)
Sympathetic cooling and self-oscillations in a hybrid atom-membrane system
published pages: , ISSN: , DOI: 10.5451/unibas-006638801
2019 Thomas M. Karg, Baptiste Gouraud, Klemens Hammerer, Philipp Treutlein
Remote Hamiltonian Interactions Mediated by Light
published pages: , ISSN: , DOI:
arXiv preprint server 2019-04-16

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