Quantum Physics News

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NASA's Hubble Photographs Ephemeral Ghosts of Quasars

NASA's Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded.

3 Apr 2015

Atom-Specific Probing of Frontier-Orbital Interactions Enables Correlating Quantum-Chemical Properties with Reactivity

They developed their own experiment for this investigation at the Linac Coherent Light Source X-ray laser at SLAC National Accelerator Laboratory in Menlo Park, California, which provided time resolutions down to 100 femtoseconds, and the synchrotron radiation source BESSY II of Helmholtz-Zentrum Berlin.

3 Apr 2015

Behaviour of Quantum Crystals Can Help Answer Fundamental Questions

It is a situation familiar from one’s own living environment: relations between neighbours can be intense, yet also characterised by sensitivities. Complex quantum systems can be imagined in a similar way – especially when magnetism is involved.

3 Apr 2015

NASA's Curiosity Rover Reaches Martian Site with Two-Tone Mineral Veins

Two-tone mineral veins at a site NASA's Curiosity rover has reached by climbing a layered Martian mountain offer clues about multiple episodes of fluid movement. These episodes occurred later than the wet environmental conditions that formed lake-bed deposits the rover examined at the mountain's base.

2 Apr 2015

Astrophysicists Identify Galaxies Clumping Together Into Larger Galaxy Clusters

A discovery by a team of astrophysicists including UBC researchers promises to have major implications for the understanding of how structures in the universe formed 10 billion years ago. Hidden within images of some of the oldest light in the universe, the team identified what they believe are galaxies clumping together into the larger galaxy clusters we know today.

2 Apr 2015

Macroscopic Mechanical Resonators Manipulated in the Quantum Regime

Cooling of macroscopic and mesoscopic objects to the quantum ground states are of great interests not only for fundamental study of quantum theory but also for the broad applications in quantum information processing and high-precision metrology. However, the cooling limit is subjected to the quantum backaction, and ground state cooling is possible only in the resolved sideband limit, which requires the resonance frequency of the mechanical motion to be larger than the cavity decay rate.

2 Apr 2015

RR Lyrae Stars May Not Be Lonely

Many, perhaps most, stars in the Universe live their lives with companions by their sides – in so-called binary systems. Until recently, however, the ancient RR Lyrae stars appeared, for mysterious reasons, to live their lives all alone. A recent study led by Chilean astronomers shows that RR Lyrae stars may not be as lonely as previously thought. The new research is published in Monthly Notices of the Royal Astronomical Society Letters.

2 Apr 2015

Cosmologists Discover Possible Precursors of Present Day Galaxy Clusters

By combining observations of the distant Universe made with ESA's Herschel and Planck space observatories, cosmologists have discovered what could be the precursors of the vast clusters of galaxies that we see today.

1 Apr 2015

Gas Outflows Create Hourglass Structure in Massive-Star Forming Region

A research group led by Aya Higuchi, a researcher at Ibaraki University, conducted observations of the massive-star forming region IRAS 16547-4247 with the Atacama Large Millimeter/submillimeter Array (ALMA).

1 Apr 2015

NSF Announces Awards for Five Physics Frontiers Centers

Whether they are describing the physics of how multicellular groups form from individual living cells, assembling the building blocks for quantum computing and quantum engineering, or investigating how massive elements came into being after our universe's beginning, the National Science Foundation's (NSF) newest Physics Frontiers Center awardees represent the leading edge of physics research.

1 Apr 2015