QMES

Quantum Mesoscopics with Vacuum Trapped Nanoparticles

Coordinatore	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH    more Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	2˙499˙471 €
EC contributo	2˙499˙471 €
Programma	FP7-IDEAS-ERC Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	ERC-2013-ADG
Funding Scheme	ERC-AG
Anno di inizio	2013
Periodo (anno-mese-giorno)	2013-10-01   -   2018-09-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZURICH  Organization address address: Raemistrasse 101 city: ZUERICH postcode: 8092 contact info Titolo: Prof. Nome: Lukas Cognome: Novotny Email: send email Telefono: +41 44 633 05 15 Fax: +41 44 633 12 85	CH (ZUERICH)	hostInstitution	2˙499˙471.00

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 Obiettivo del progetto (Objective)

'The objective of this project is to control the dynamics of a nanoscale object with unprecedented precision and to study interactions on the mesoscale, - the grey zone between the discrete atomistic world and the continuous world of macroscopic objects.

A single nanoparticle will be captured by the gradient force of a focused laser beam in ultrahigh vacuum and its center-of-mass motion will be controlled by optical back-action. To cool the nanoparticle to its quantum ground state we will explore active parametric feedback cooling in combination with passive cavity-based cooling.

A laser-trapped nanoparticle is physically decoupled from its environment, which guarantees extremely long coherence times and quality factors as high as 10^11 in ultrahigh vacuum. Force sensitivities of 10^(-20) Newtons in a bandwidth of 1 Hz can be achieved, which outperforms other measurement techniques by orders of magnitude. In this project, we will use a laser-trapped nanoparticle as a local probe for measuring mesoscopic interactions, such as Casimir forces, vacuum friction, non-equilibrium dynamics and phase transitions, with unprecedented accuracy.

We will also measure the dynamics of nanoparticles in double-well potentials created by two laser beams with closely spaced foci. A pair of trapped nanoparticles defines a highly controllable coupled-oscillator model, which can be used for studying strong coupling, level splitting, and adiabatic energy transfer at the quantum - classical barrier.

A nanoparticle cooled to its quantum ground state opens up a plethora of fundamental studies, such as the collapse of quantum superposition states under the influence of noise and gravity-induced quantum state reduction. This project will also open up new directions for precision metrology and provide unprecedented control over the dynamics of matter on the nanometer scale.'