Forum für Wissenschaft, Industrie und Wirtschaft

Hauptsponsoren:     3M 
Datenbankrecherche:

 

Rene Gerritsma receives EUR 1.5 million ERC Starting Grant for quantum simulations

10.07.2013
Mainz physicist will develop a quantum simulator that will be used to study the quantum physics of solids

Rene Gerritsma of Johannes Gutenberg University Mainz (JGU) has been awarded funding from the European Research Council in support of his work on quantum simulations with ultracold atoms and ions.

His project on "Hybrid Atom-Ion Quantum Systems" will be funded by a prestigious ERC Starting Grant worth EUR 1.5 million. The central goal of the project is to study the properties of solids by using a quantum simulator based on a hybrid system of cold ions interacting with a degenerate Fermi gas.

More than 30 years ago, Richard Feynman proposed that quantum simulators could be used to study large many-body quantum systems. Feynman realized that it is beyond the ability of existing computer technology to calculate many properties of such systems. For example, just storing the quantum state of a comparably small system of only 50 electrons would already require a computer with an inconceivable amount of RAM capacity. In this case, 250 complex numbers would have to be stored, corresponding to quadrillions of bits. In contrast, Feynman's proposed quantum simulator would be able to cope with the task of investigating the properties of many-body quantum systems such as solids.

Crystalline solids consist of a regular lattice of positively charged atomic cores (ions) surrounded by a Fermi gas of electrons. Important properties of solids, such as their electrical conductivity, are strongly influenced by the interplay between these electrons and the lattice atoms. Lattice vibrations (sound waves) also play a major role including the mediation of the electron-electron interactions thought to be responsible for high-temperature superconductivity. Although some phase transitions that occur in solids, e.g. the transition from a Mott insulator to a superconductor, can be studied using a quantum simulator that employs only ultracold atoms, there is to date no atomic model system that can simulate the effect of real lattice vibrations on electrons.

In his project, Gerritsma plans to use ytterbium ion crystals (simulating the ionic core lattice) and an ultracold gas of lithium atoms (simulating an electronic Fermi gas). By letting the atoms and ions interact in a controlled manner, this model system may provide a deeper insight into the properties of solids and a route towards new quantum simulators of electron-lattice interactions. For the first time, the focus will be on venturing deep into the ultracold regime of atom-ion interactions, where quantum mechanical effects dominate. Tools originally developed for implementing quantum information processing make it possible to employ ions as sensors to probe the properties of the quantum simulator and these tools could even be used to detect individual atoms.

Rene Gerritsma studied Physics at the University of Groningen in the Netherlands and received his doctorate from the University of Amsterdam. He then worked as a postdoctoral researcher at the Institute for Quantum Optics and Quantum Information in Innsbruck, Austria. Since late 2011, he has been a member of the Quantum, Atomic, and Neutron Physics (QUANTUM) group at the Institute of Physics of Johannes Gutenberg University Mainz. The ERC Starting Grant gives him the opportunity to establish his own research group. Gerritsma's experimental research in the QUANTUM work group is supported by his collaboration with theoretical physicist Professor Walter Hoffstetter of the Goethe University in Frankfurt and the Transregional Collaborative Research Center 49 on "Condensed Matter Systems with Variable Many-Body Interactions."

Image:
http://www.uni-mainz.de/bilder_presse/08_physik_quantum_ercgrant_gerritsma_01.jp...
The figure schematically shows a Paul trap with four main electrodes, in which a crystal of Yb+ ions is trapped and overlapped with an optically-trapped cloud of lithium ions.

source: Rene Gerritsma

Futher information:
Dr. Rene Gerritsma
Quantum, Atomic, and Neutron Physics (QUANTUM)
Institute of Physics
Johannes Gutenberg University Mainz (JGU)
D 55099 Mainz, GERMANY
phone +49 6131 39-20203 or 39-24606
fax +49 6131 39-25179
e-mail: rene.gerritsma@uni-mainz.de
Weitere Informationen:
http://arxiv.org/abs/1304.4972 (scientific proposal)

Petra Giegerich | idw
Weitere Informationen:
http://www.quantum.physik.uni-mainz.de/

Weitere Nachrichten aus der Kategorie Förderungen Preise:

nachricht Spitzenforschung vom Nanodraht bis zur Supernova: Fünf ERC Consolidator Grants für die TU München
14.12.2017 | Technische Universität München

nachricht Leibniz-Preise 2018: DFG zeichnet vier Wissenschaftlerinnen und sieben Wissenschaftler aus
14.12.2017 | Deutsche Forschungsgemeinschaft (DFG)

Alle Nachrichten aus der Kategorie: Förderungen Preise >>>

Die aktuellsten Pressemeldungen zum Suchbegriff Innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Immunsystem - Blutplättchen können mehr als bislang bekannt

LMU-Mediziner zeigen eine wichtige Funktion von Blutplättchen auf: Sie bewegen sich aktiv und interagieren mit Erregern.

Die aktive Rolle von Blutplättchen bei der Immunabwehr wurde bislang unterschätzt: Sie übernehmen mehr Funktionen als bekannt war. Das zeigt eine Studie von...

Im Focus: First-of-its-kind chemical oscillator offers new level of molecular control

DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.

Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...

Im Focus: Nanostrukturen steuern Wärmetransport: Bayreuther Forscher entdecken Verfahren zur Wärmeregulierung

Der Forschergruppe von Prof. Dr. Markus Retsch an der Universität Bayreuth ist es erstmals gelungen, die von der Temperatur abhängige Wärmeleitfähigkeit mit Hilfe von polymeren Materialien präzise zu steuern. In der Zeitschrift Science Advances werden diese fortschrittlichen, zunächst für Laboruntersuchungen hergestellten Funktionsmaterialien beschrieben. Die hiermit gewonnenen Erkenntnisse sind von großer Relevanz für die Entwicklung neuer Konzepte zur Wärmedämmung.

Von Schmetterlingsflügeln zu neuen Funktionsmaterialien

Im Focus: Lange Speicherung photonischer Quantenbits für globale Teleportation

Wissenschaftler am Max-Planck-Institut für Quantenoptik erreichen mit neuer Speichertechnik für photonische Quantenbits Kohärenzzeiten, welche die weltweite...

Im Focus: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Alle Focus-News des Innovations-reports >>>

Anzeige

Anzeige

IHR
JOB & KARRIERE
SERVICE
im innovations-report
in Kooperation mit academics
Veranstaltungen

Call for Contributions: Tagung „Lehren und Lernen mit digitalen Medien“

15.12.2017 | Veranstaltungen

Die Stadt der Zukunft nachhaltig(er) gestalten: inter 3 stellt Projekte auf Konferenz vor

15.12.2017 | Veranstaltungen

Mit allen Sinnen! - Sensoren im Automobil

14.12.2017 | Veranstaltungen

 
VideoLinks
B2B-VideoLinks
Weitere VideoLinks >>>
Aktuelle Beiträge

Weltrekord: Jülicher Forscher simulieren Quantencomputer mit 46 Qubits

15.12.2017 | Informationstechnologie

Wackelpudding mit Gedächtnis – Verlaufsvorhersage für handelsübliche Lacke

15.12.2017 | Verfahrenstechnologie

Forscher vereinfachen Installation und Programmierung von Robotersystemen

15.12.2017 | Energie und Elektrotechnik