Quantum Physics News

VLT Observations Reveal First Signs of a Strange Quantum Effect

November 30, 2016

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First Signs of Weird Quantum Property of Empty Space?

Using ESO’s Very Large Telescope, astronomers may have found the first observational indications of a strange quantum effect, first predicted in the 1930s. The polarization of the observed light suggests that the empty space around the neutron star is subject to a quantum effect known as vacuum birefringence. A team led by Roberto Mignani from […]

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Researchers Derive a Formula for Tracking the Flow of Quantum Information

November 17, 2016

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New Formula Tracks the Flow of Quantum Information

A team of reserchers has developed a formula for understanding where quantum objects land when they are transmitted. If objects in motion are like rainwater flowing through a gutter and landing in a puddle, then quantum objects in motion are like rainwater that might end up in a bunch of puddles, all at once. Figuring […]

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Particles Exhibit Their Quantum Nature Close to Absolute Zero

November 9, 2016

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Sensing the Quantum Limit in Scanning Tunnelling Spectroscopy

A newly published study from the Max Planck Institute reveals what would happen if an electric current no longer flowed, but trickled instead. What would happen if an electric current no longer flowed, but trickled instead? This was the question investigated by researchers working with Christian Ast at the Max Planck Institute for Solid State […]

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Yale Engineers Advance Quantum Technology With Photon Control

November 1, 2016

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Advancing Quantum Technology With Photon Control

Engineers from Yale University have developed a new technique to control the frequency of single photons. The ability to control the frequency of single photons is crucial to realize the potential of quantum communications and quantum computing. The current methods for changing photon frequency, however, bring with them significant drawbacks. Researchers in the lab of […]

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Scientists Generate the Fastest Electric Current Ever Measured Inside a Solid Material

October 25, 2016

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Scientists Generate the Fastest Electric Current to Date Inside a Solid Material

Using ultrafast laser flashes, physicists from the Max Planck Institute have generated the fastest electric current that has ever been measured inside a solid material. In the field of electronics, the principle ‘the smaller, the better’ applies. Some building blocks of computers or mobile phones, however, have become nearly as small today as only a […]

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Quantum Physics – Teleporting Toward a Quantum Internet

October 14, 2016

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Teleporting Toward a Quantum Internet

New experiments in Calgary tested quantum teleportation in actual infrastructure, representing a major step forward for the technology. Quantum physics is a field that appears to give scientists superpowers. Those who understand the world of extremely small or cold particles can perform amazing feats with them — including teleportation — that appear to bend reality. […]

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Yale Engineers Develop A New Chip That Could Advance Quantum Technology

October 5, 2016

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New Chip Could Advance Quantum Technology

Yale engineers have developed a new device that converts visible light to infrared light suitable for fiber-optic transmission without destroying the light’s quantum state. The lab of Hong Tang, Llewellyn West Jones, Jr. Professor of Electrical Engineering & Physics, has developed a device that converts visible light to infrared light, a crucial step in building […]

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Yale Researchers Cross the “Break Even” Point in Preserving a Bit of Quantum Information

July 21, 2016

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Researchers Cross the Break Even Point in Preserving Quantum Information

Using a novel system to encode, spot errors, decode, and correct errors in a quantum bit, researchers at Yale University have developed a device that lengthens the life of quantum information. For the first time, researchers at Yale have crossed the “break even” point in preserving a bit of quantum information for longer than the […]

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Researchers Develop A Universal Quantum Gate

July 13, 2016

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Quantum Gate Allows Light Particles to Interact with Each Other

Scientists have now developed a universal quantum gate, which could become the key component in a quantum computer. Light particles completely ignore each other. In order that these particles can nevertheless switch each other when processing quantum information, researchers at the Max Planck Institute of Quantum Optics in Garching have now developed a universal quantum […]

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Schrödinger’s Cat Gets a Second Box

May 27, 2016

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A Schrödinger Cat Living in Two Boxes

A team of physicists from Yale University have given Schrödinger’s cat a second box to play in, and the result may help further the quest for reliable quantum computing. Schrödinger’s cat is a well-known paradox that applies the concept of superposition in quantum physics to objects encountered in everyday life. The idea is that a […]

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New Research May Help in the Development of Nano-Optical Transistors for a Photonic Computer

May 5, 2016

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A Step Towards the Photonic Computer

Researchers show that a single molecule allows a beam of light with a few photons to be controlled – a step towards the photonic computer. The Jedi knights of the Star Wars saga are engaged in an impossible fight. This does not result from the superiority of the enemy empire, but from physics because laser […]

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Scientists Develop a Light-Driven Three-Dimensional Plasmonic Nanosystem

February 24, 2016

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Researchers Develop Nanoplasmonic System in the Form of a Pair of Scissors That They Can Open Using UV light

Scientists at the Max Planck Institute for Intelligent Systems have developed a nanoplasmonic system in the form of a pair of scissors that they can open using UV light. Nanomachines could take over a variety of tasks in future. Some day they may be able to perform medical precision work in the human body or […]

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Physicists Test the Response Time of Electrons

February 18, 2016

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Researchers Determine the Delay with Which Electrons in Atoms Respond to the Electromagnetic Forces of Light

Researchers from the Laboratory for Attosecond Physics generated for the first time visible flashes of light in attosecond dimensions. They dispatched the light-flashes to electrons in krypton atoms. Through the experiment the researchers have been able to display that the electrons, which are stimulated by the flashes, needed roughly 100 attoseconds to respond to the […]

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Scientists Propose a New Method to Probe the Evolutionary History of the Universe

January 27, 2016

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Scientists Propose a New Method to Probe the Beginning of the Universe

New research from the Harvard-Smithsonian Center for Astrophysics suggests that oscillating heavy particles generated “clocks” in the primordial universe that could be used to determine what produced the initial conditions that gave rise to the universe. How did the universe begin? And what came before the Big Bang? Cosmologists have asked these questions ever since […]

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Yale Engineers Devise Quantum Technology On A Chip

January 22, 2016

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Quantum Interference in Heterogeneous Superconducting-Photonic Circuits on a Silicon Chip

Engineers at the Yale School of Engineering and Applied Science have devised a process of nanofabrication to create a silicon chip that contains all the components needed for a quantum information processor. The potential benefits of quantum technology are huge. Theoretically, it can complete in seconds certain tasks – like simulations of complex chemical processes […]

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Physicists Achieve Quantum Entanglement at Room Temperature

November 22, 2015

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Quantum Entanglement Achieved at Room Temperature

A newly published study from the University of Chicago and Argonne National Laboratory demonstrates how macroscopic entanglement can be generated at room temperature and in a small magnetic field. Entanglement is one of the strangest phenomena predicted by quantum mechanics, the theory that underlies most of modern physics: It says that two particles can be […]

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Quantum Process Significantly Boosts the Energy That Can Be Harnessed from Sunlight

November 6, 2015

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Researchers Significantly Boost the Energy That Can Be Harnessed from Sunlight

A newly published study details how a quantum process increases the number of electrons produced when light strikes a metal-dielectric interface. Researchers believe this finding could lead to better solar cells or light detectors. The new approach is based on the discovery that unexpected quantum effects increase the number of charge carriers, known as electrons […]

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Physicists Make First Ever Measurement of Antiproton Interactions

November 5, 2015

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Scientists Make First Measurement of Antiproton Attraction

A team of scientists has announced the first ever measurement of antiproton interactions that make possible the existence of antimatter nuclei. The discovery gives physicists new ways to look at the forces that bind matter and antimatter. Peering at the debris from particle collisions that recreate the conditions of the very early universe, scientists have […]

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