Verschränkung mit Signalwirkung
LMU/MPQ-Wissenschaftler entwickeln ein System, das die Verschränkung von stationären Quantensystemen anzeigt, ohne diesen Zustand zu zerstören. Das Experiment ist ein wichtiger Schritt auf dem Weg, Quanteninformation über große Entfernungen zu übertragen.
Hunting planets with laser rulers
Laser frequency combs can be used for the calibration of astronomical spectrographs. This will help to find extra-solar planets. Stars outside our solar-system. By refining this technology it might become possible to directly measure even very small changes in the expansion velocity of the universe.
A quantum connection between light
Researchers at EPFL, Switzerland and the Max Planck Institute of Quantum Optics (MPQ, Garching near Munich) have demonstrated a microscopic system in which light can be converted into a mechanical oscillation and back.
Randolf Pohl receives Gustav Hertz Award
of the DPG
Dr. Randolf Pohl, scientist in the Laser Spectroscopy Division of Prof. Theodor W. Hänsch at the Max Planck Institute of Quantum Optics, is going to receive the Gustav Hertz Award of the German Physical Society (DPG).
Lauschangriffen auf der Spur
Photonen ermöglichen in der Quantenkryptographie die abhörsichere Übertragung von Nachrichten. Ein Forscherteam um Professor Harald Weinfurter konnte nun eine extrem einfache Art des Abhörens bei derartigen Systemen durchführen – aber auch gleich eine Gegenmaßnahme vorstellen.
Randolf Pohl receive ERC Starting Grants
Two scientists from the Max Planck Institute of Quantum Optics, have successfully applied for the “European Research Council Starting Grant”. Their proposals have been selected out of 4080 applications.
Single atoms for detecting extremely weak forces
We report on injection locking of optically excited mechanical oscillations of a single, trapped ion.
MPQ-scientists demonstrate that due to synchronisation atoms can be influenced by forces as weak as 5 yoctonewton. ...
Cold atoms image microwave fields
Microwaves are an essential part of modern communication technology. Sophisticated techniques for measurement and characterization of microwave fields are an essential tool for the development of such circuits. ...
How small is the proton?
The proton – one of the universal building-blocks of all matter – is even smaller than had previously been assumed. This is the result obtained at the Paul-Scherrer-Institut (PSI) in Villigen (Switzerland) by an international research team. ...
Quantum Experiments in Microgravity
At the beginning of the 20th century two theories have been developed that have completely changed our understanding of the forces of nature: General Relativity and Quantum Mechanics. ...
Dr. Thomas Udem has been elected as OSA Fellow 2010
The Board of Directors of the Optical Society of America (OSA) has elevated Dr. Thomas Udem, a scientist at the Laser Spectroscopy Division at the Max Planck Institute of Quantum Optics, Garching (near Munich), to the rank of an “OSA fellow 2010”.