Quantum Physics News

“Proximity Magnetism” Could Be a Building Block for Quantum Computers

August 18, 2015

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MIT Physicists Observe an Unusual Magnetic Behavior

Researchers reveal an unusual magnetic behavior that could be used to probe a variety of exotic physical phenomena, and could ultimately be used to produce key components of future quantum computers. An exotic kind of magnetic behavior, driven by the mere proximity of two materials, has been analyzed by a team of researchers at MIT […]

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Hyperentanglement Allows Photons to Carry More Data

July 1, 2015

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Engineers Demonstrate a New Way to Harness Light Particles

By slicing up and entangle each photon pair into multiple dimensions, researchers from UCLA have demonstrated a new way to harness light particles. A team of researchers led by UCLA electrical engineers has demonstrated a new way to harness light particles, or photons, that are connected to each other and act in unison no matter […]

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Cryogenic Storage Ring Reproduces the Chemical Conditions of Space

June 11, 2015

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First Experiment in the Cryogenic Storage Ring

Researchers at the Max Planck Institute for Nuclear Physics conducted initial experiments in the Cryogenic Storage Ring. The Cryogenic Storage Ring can reproduce the chemical conditions in space in the laboratory. It is now easier to investigate space chemistry on Earth as well. Researchers at the Max Planck Institute for Nuclear Physics (MPIK) in Heidelberg […]

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Distant Quasars Help Set Limits On Space-Time Quantum Foam

May 28, 2015

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Space-Time Quantum Foam

New x-ray and gamma-ray observations of distant quasars are being used to help scientists set limits on the quantum nature of space-time on extremely tiny scales. A team of scientists has used X-ray and gamma-ray observations of some of the most distant objects in the Universe to better understand the nature of space and time. […]

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Researchers Develop a New Quantum Error Correcting Code

May 26, 2015

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A New Quantum Error Correcting Code

A team of researchers from MIT, Google, the University of Sydney, and Cornell University present a new quantum error correcting code that requires measurements of only a few quantum bits at a time to ensure consistency between one stage of a computation and the next. Quantum computers are largely theoretical devices that could perform some […]

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New Entanglement Technique Could Make Atomic Clocks More Accurate

March 26, 2015

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New Technique Could Make Atomic Clocks More Accurate

Researchers have developed a new technique that can entangle thousands of atoms with a single photon, opening the door to a new class of entangled states. Physicists from MIT and the University of Belgrade have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results, published today in […]

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Quantum Experiment Verifies Nonlocal Wavefunction Collapse for a Single Particle

March 25, 2015

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Quantum Experiment Verifies Nonlocal Wavefunction Collapse

Physicists from Griffith University have demonstrated “spooky action at a distance” for the first time with no efficiency loophole by splitting a single photon between two laboratories and experimentally testing if the choice of measurement in one lab really causes a change in the local quantum state in the other lab. An experiment devised in […]

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Entanglement Can Improve Optical Sensor Performance

March 9, 2015

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Entanglement Can Improve the Performance of Optical Sensors

A new study from MIT demonstrates that entanglement can improve the performance of optical sensors, even when it doesn’t survive light’s interaction with the environment. The extraordinary promise of quantum information processing — solving problems that classical computers can’t, perfectly secure communication — depends on a phenomenon called “entanglement,” in which the physical states of […]

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New Form of Quantum Friction Observed

February 25, 2015

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Yale Physicists Discover a New Form of Quantum Friction

Physicists at Yale University have observed a new form of quantum friction that could open new avenues in the fields of nonlinear quantum optics and quantum information, where systems with multi-dimensional steady state manifolds can be used as error corrected logical qubits. The researchers have experimentally confined the state of a harmonic oscillator to the […]

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New Technique Extends Duration of Quantum States

January 30, 2015

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New Technique Greatly Extends Duration of Fragile Quantum States

Using a qubit design that employs nitrogen atoms embedded in synthetic diamond, a team of researchers has developed a new technique that greatly extends duration of fragile quantum states. Quantum computers are experimental devices that promise exponential speedups on some computational problems. Where a bit in a classical computer can represent either a 0 or […]

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Berkeley Physicists Demonstrate That Space is Not Squeezed

January 29, 2015

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Quantum Computer Shows Space Is Not Squeezed

Using partially entangled atoms, a new experiment by UC Berkeley physicists demonstrated more precisely than ever before that space looks the same in all directions. Berkeley — Ever since Einstein proposed his special theory of relativity in 1905, physics and cosmology have been based on the assumption that space looks the same in all directions […]

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Experimental Observations of Multiparty EPR Steering and Genuine Tripartite Entanglement

January 15, 2015

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Extending Einstein-Podolsky-Rosen Quantum Mechanics Paradox

Using an optical network, researchers experimentally confirm that entanglement associated with the EPR paradox can be shared over three or more distinct optical systems. An international team, including researchers from Swinburne University of Technology, has demonstrated that the 1935 Einstein-Podolsky-Rosen (EPR) quantum mechanics paradox may be extended to more than two optical systems, paving the […]

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New Half-Light Half-Matter Quantum Particles

December 30, 2014

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Study Unveils New Half-Light Half-Matter Quantum Particles

A newly published study details how a team of researchers were able to discover half-light, half-matter particles in atomically thin semiconductors. Prospects of developing computing and communication technologies based on quantum properties of light and matter may have taken a major step forward thanks to research by City College of New York physicists led by […]

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Researchers Demonstrate Superconductivity without Cooling

December 4, 2014

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Superconductivity without Cooling

New research details how scientists used an infrared laser pulse to briefly modify the structure of a high-temperature superconductor, removing its electrical resistance at room temperature. Superconductivity is a remarkable phenomenon: superconductors can transport electric current without any resistance and thus without any losses whatsoever. It is already in use in some niche areas, for […]

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Physicists Demonstrate Control of a Two-Qubit System

November 13, 2014

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UCSB Physicists Detail a Piece of the Quantum Puzzle

In a newly published study, UCSB physicists demonstrate the high level of controllability needed to explore ideas in quantum simulations. While the Martinis Lab at UC Santa Barbara has been focusing on quantum computation, former postdoctoral fellow Pedram Roushan and several colleagues have been exploring qubits (quantum bits) for quantum simulation on a smaller scale. […]

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New Theory Suggests Quantum Effects Caused by Interacting Parallel Worlds

November 13, 2014

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Quantum Weirdness Caused by Interacting Parallel Worlds

A new theory of quantum mechanics presumes not only that parallel worlds exist, but also that their mutual interaction is what gives rise to all quantum effects observed in nature. The theory, first published by Professor Bill Poirier four years ago, has recently attracted attention from the foundational physics community, leading to an invited Commentary […]

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Physicists Propose Existence of Parallel Universes, Challenge Quantum Science

October 30, 2014

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Scientists Propose Existence of Parallel Worlds

In a newly published study, physicists propose that parallel universes really exist and that they interact and influence one another by a subtle force of repulsion. Griffith University academics are challenging the foundations of quantum science with a radical new theory based on the existence of, and interactions between, parallel universes. In a paper published […]

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Chip-Scale Device Enables Yale Engineers to ‘See Without Looking’

October 20, 2014

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Yale Engineers Develop a Chip Scale Device That Uses Interaction Free Measurement

Engineers at the Yale School of Engineering & Applied Science have developed a chip-scale device that uses the wave-particle duality of single photons to sense the presence of an object without interacting with it – a technique known as “interaction-free measurement.” “Our device uses silicon photonics to create interaction-free measurement on an integrated chip—something previously […]

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