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Princeton Quantum Field Theory Researcher Dies of Alzheimer's Disease

Renowned mathematical physicist and Princeton University Thomas D. Jones Professor Emeritus Arthur Wightman died of Alzheimer's disease Jan. 13 at Veterans Nursing Home in Edison, N.J. He was 90. He was best known for his pioneering and far-reaching research on the mathematical foundations of quantum field theory.

31 Jan 2013

Spintronic Chip Allows Information to Travel in Three Dimensions

Scientists from the University of Cambridge have created, for the first time, a new type of microchip which allows information to travel in three dimensions. Currently, microchips can only pass digital information in a very limited way – from either left to right or front to back. The research was published today, 31 January, in Nature.

31 Jan 2013

Researchers Attempt to Reconcile Classical and Quantum Mechanics

Searching for common elements in seemingly incompatible scientific theories may lead to the discovery of new ones that revolutionize our understanding of the world.

31 Jan 2013

New Funding to Help Advance Accurate Graphene-Based Quantum Standards

NPL is part of the Graphene Flagship consortium that has been funded half a billion euros by the European Commission to develop the potential of graphene along with related materials for applications in computing, batteries and sensors.

29 Jan 2013

Mathematical Model to Explain Dark Matter

The universe abounds with dark matter. Nobody knows what it consists of. UiO physicists have now launched a very hard mathematical explanation that could solve the mystery once and for all.

28 Jan 2013

Single-Photon Detectors Integrated with Nanophotonic Chips for Quantum Communication

The detector combines near-unity detection efficiency with high timing resolution and has a very low error rate. The results have been published by Nature Communications (doi:10.1038/ncomms2307).

28 Jan 2013

Austrian Physicist May Have Contributed to Einstein’s Equation

Two American physicists outline the role played by Austrian physicist Friedrich Hasenöhrl in establishing the proportionality between the energy (E) of a quantity of matter with its mass (m) in a cavity filled with radiation. In a paper about to be published in EPJ H, Stephen Boughn from Haverford College in Pensylvannia and Tony Rothman from Princeton University in New Jersey argue how Hasenöhrl's work, for which he now receives little credit, may have contributed to the famous equation E=mc2.

From Springer - Science and Technology Publishers 28 Jan 2013

Laser Pulse-Generated Hot Electrons Cause Ultrafast Demagnetization

For purposes of their research, the scientists irradiated two separate layered systems with ultrashort laser pulses on the order of just one hundred femtoseconds (10-15 s). One sample consisted essentially of a single thin layer of ferromagnetic nickel. By contrast, a second sample of this same nickel material was coated with a non-magnetic layer of gold.

28 Jan 2013

Novel Scheme to Precisely Accelerate Neutral Particles

Charged particle accelerators have become crucially important to modern day life, be it in health care for cancer treatment or for answering important fundamental scientific questions like the existence of the HIGGS boson, the so called 'God particle'. In a simple picture, charged particles like electrons and protons are accelerated between two end plates across which an electrical voltage is applied.

28 Jan 2013

Astronomers Construct 3D View of Nova Remnant

In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted gas in 3D which, contrary to predictions, has hardly slowed down its speed of up to 1,000 km/s after all this time.

25 Jan 2013