Quantum Science News

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Researchers Look at Localization and Ergodicity-Breaking Behavior of Atoms

Two physical phenomena, localization and ergodicity-breaking, are conjoined in new experimental and theoretical work. Before we consider possible implications for fundamental physics and for prospective quantum computing, let’s first look at these two topics in turn. It will bear providing some specific examples before getting to the quantum details.

28 Nov 2015

New Model Predicts Trapped Electron Collisions in Spherical Tokamaks

For fusion reactions to take place efficiently, the atomic nuclei that fuse together in plasma must be kept sufficiently hot. But turbulence in the plasma that flows in facilities called tokamaks can cause heat to leak from the core of the plasma to its outer edge, causing reactions to fizzle out.

27 Nov 2015

SPHERE Instrument Reveals Weight Loss Secret of Aging Star

VY Canis Majoris is a stellar goliath, a red hypergiant, one of the largest known stars in the Milky Way. It is 30-40 times the mass of the Sun and 300 000 times more luminous. In its current state, the star would encompass the orbit of Jupiter, having expanded tremendously as it enters the final stages of its life.

27 Nov 2015

Researchers Predict Existence of New Particle in Metallic Materials

An international team of researchers has predicted the existence of a new type of particle called the type-II Weyl fermion in metallic materials. When subjected to a magnetic field, the materials containing the particle act as insulators for current applied in some directions and as conductors for current applied in other directions. This behavior suggests a range of potential applications, from low-energy devices to efficient transistors.

27 Nov 2015

CERN’s LHC Accelerator Achieves Highest-Energy Collisions of Heavy Atomic Nuclei

The world's most powerful accelerator, the 27 km long Large Hadron Collider (LHC) operating at CERN in Geneva established collisions between lead nuclei, this morning, at the highest energies ever. The LHC has been colliding protons at record high energy since the summer, but now the time has now come to collide large nuclei (nuclei of lead, Pb, consist of 208 neutrons and protons). The experiments aim at understanding and studying the properties of strongly interacting systems at high densities and thus the state of matter of the Universe shortly after the Big Bang.

27 Nov 2015

Researchers Propose New QKD-Based Quantum Private Query to Reduce Failure Probability

Cryptography is the approach to protect data secrecy in public environment. Certain cryptographic communications require not only the security of the transmitted message against eavesdropping from an outside adversary, but also the communicators' individual privacy against each other. Symmetrically private information retrieval (SPIR), which deals with the problem of private user queries to a database, is an example of such communication protocols.

27 Nov 2015

Dusty Comet Fragments Most Likely Explanation for Mysterious Dimming of KIC 8462852 Star

Was it a catastrophic collision in the star's asteroid belt? A giant impact that disrupted a nearby planet? A dusty cloud of rock and debris? A family of comets breaking apart? Or was it alien megastructures built to harvest the star's energy?

27 Nov 2015

Researchers Successfully ‘Pluck’ a Single Photon out of a Pulse of Light

At the Weizmann Institute of Science, researchers have managed to “pluck” a single photon – one particle of light – out of a pulse of light. The findings of this research, which appeared this week in Nature Photonics, bear both fundamental and practical significance: Light is the workhorse of today’s communication systems, and single photons are likely to be the backbone of future quantum communication systems. In addition, say the scientists, the apparatus they have devised will spur further research into the fundamental particle nature of light.

26 Nov 2015

York U Astrophysics Researcher Wins Award for Discovery of Outer-Lying Groupings of Galaxies

An up-and-coming York University astrophysics researcher will receive an award today in Ottawa for furthering the understanding the universe, including the discovery of outer-lying groupings of galaxies similar to ours and the reason why they spin.

26 Nov 2015

Researchers Advance Sending of ‘Entangled’ Particles over Long Distances

Researchers from Stanford have advanced a long-standing problem in quantum physics – how to send "entangled" particles over long distances.

26 Nov 2015

Scientists Link Superconducting Carrier Density with Quantum Properties of a Substance

Physicists Mikhail Feigel’man (the head of MIPT’s theoretical nanophysics laboratory) and Lev Ioffe have explained the unusual effect in a number of promising superconductor materials. Using a theory they developed previously, the scientists have linked superconducting carrier density with the quantum properties of a substance.

26 Nov 2015

Mars' Largest Moon Slowly Falling Toward the Planet

Mars' largest moon, Phobos, is slowly falling toward the planet, but rather than smash into the surface, it likely will be shredded and the pieces strewn about the planet in a ring like the rings encircling Saturn, Jupiter, Uranus and Neptune.

26 Nov 2015

Astronomers Identify Hottest White Dwarf and Intergalactic Gas Entering the Milky Way

Astronomers in Tübingen and Potsdam identify dying star, intergalactic gas entering Milky Way

26 Nov 2015

Long Filaments of Hairy Dark Matter may Exist on Earth

The solar system might be a lot hairier than we thought. A new study publishing this week in the Astrophysical Journal by Gary Prézeau of NASA's Jet Propulsion Laboratory, Pasadena, California, proposes the existence of long filaments of dark matter, or "hairs."

25 Nov 2015

Comets Produce Prodigious Amount of Carbon Dioxide When They Get Closer to the Sun

After its launch in 2009, NASA's NEOWISE spacecraft observed 163 comets during the WISE/NEOWISE prime mission. This sample from the space telescope represents the largest infrared survey of comets to date. Data from the survey are giving new insights into the dust, comet nucleus sizes, and production rates for difficult-to-observe gases like carbon dioxide and carbon monoxide. Results of the NEOWISE census of comets were recently published in the Astrophysical Journal.

25 Nov 2015

Quantum Science News

Researchers Look at Localization and Ergodicity-Breaking Behavior of Atoms

New Model Predicts Trapped Electron Collisions in Spherical Tokamaks

SPHERE Instrument Reveals Weight Loss Secret of Aging Star

Researchers Predict Existence of New Particle in Metallic Materials

CERN’s LHC Accelerator Achieves Highest-Energy Collisions of Heavy Atomic Nuclei

Researchers Propose New QKD-Based Quantum Private Query to Reduce Failure Probability

Dusty Comet Fragments Most Likely Explanation for Mysterious Dimming of KIC 8462852 Star

Researchers Successfully ‘Pluck’ a Single Photon out of a Pulse of Light

York U Astrophysics Researcher Wins Award for Discovery of Outer-Lying Groupings of Galaxies

Researchers Advance Sending of ‘Entangled’ Particles over Long Distances

Scientists Link Superconducting Carrier Density with Quantum Properties of a Substance

Mars' Largest Moon Slowly Falling Toward the Planet

Astronomers Identify Hottest White Dwarf and Intergalactic Gas Entering the Milky Way

Long Filaments of Hairy Dark Matter may Exist on Earth

Comets Produce Prodigious Amount of Carbon Dioxide When They Get Closer to the Sun

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Quantum Science News

News Categories

Building the World's First Enterprise-Grade Quantum-Proof Communication Platform

Solving Real-World Problems With Neutral Atoms: The Road to Fault-Tolerance

The Limits of Current Quantum Simulations

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