Quantum Mechanics News

Researchers Observe What Happens During a Quantum Phase Transition

April 7, 2014

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In a newly published study, researchers observe what happens during a quantum phase transition, and compare the “quantum melting” of the magnetic structure with the classical “thermal melting” phase transition. When ice is warmed, the water molecules forming its structure vibrate more and more vigorously until finally the forces between them are no longer strong […]

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Researchers Entangle Two Independent Photons with Different Frequencies

April 2, 2014

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Using time-resolved measurement and active feed forward, researchers from the University of Science and Technology of China have entangled two independent photons of different colors for the first time. Entanglement has been capturing the imagination of scientists as well as the public ever since it first emerged from the newly minted quantum mechanics formalism eight […]

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Quantum Mechanics May Lead to an Ultra-Secure Internet

March 25, 2014

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Researchers give theoretical proof that quantum mechanics may lead to an ultra-secure internet. Einstein’s skepticism about quantum mechanics may lead to an ultra-secure internet suggests a new paper by researchers from Swinburne University of Technology and Peking University. Associate Professor Margaret Reid from Swinburne’s Center for Quantum and Optical Science said Einstein’s reservations about quantum […]

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Researchers Discover the First Direct Evidence of Cosmic Inflation

March 18, 2014

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Researchers have discovered the first direct evidence of cosmic inflation, confirming a deep connection between quantum mechanics and general relativity. Cambridge, Massachusetts – Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang. In the first fleeting fraction of a second, the universe expanded […]

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Researchers Combine Excited States of Two Materials into a New Quantum Mechanical State

March 3, 2014

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A team of researchers has taken the excited states of two principally different materials and combined them into a new quantum mechanical state that shares their best properties. Ann Arbor — Like a spring connecting two swings, light can act as photon glue that binds together the quantum mechanical properties of two vastly different materials. […]

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Researchers Propose Using Distant Quasars to Test Bell’s Theorem

February 20, 2014

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A team of researchers has proposed a practical scheme to use photons from causally disconnected cosmic sources to set the detectors in an experimental test of Bell’s inequality. In a new paper, MIT researchers propose an experiment that may close the last major loophole of Bell’s inequality — a 50-year-old theorem that, if violated by […]

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Ballistic Transport in Graphene Nanoribbons Suggests New Type of Graphene-Based Electronics

February 6, 2014

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A newly published study from Georgia Institute of Technology reveals that ballistic transport in graphene nanoribbons could result in a new class of coherent electronic devices. Using electrons more like photons could provide the foundation for a new type of electronic device that would capitalize on the ability of graphene to carry electrons with almost […]

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New Quantum Dots Design for Solotronics

January 27, 2014

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Researchers at the University of Warsaw have created and studied two new types of solotronic structures, including the world’s first quantum dots containing single cobalt ion. Electronic systems operating on the level of individual atoms would seem to be the natural consequence of efforts to achieve ever-greater miniaturization. Already now, we are able to control […]

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Direct Measurement Technique Offers an Alternative to Quantum Tomography

January 20, 2014

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In a new study, researchers demonstrate “direct measurements” of the quantum state associated with the orbital-angular momentum, showing that direct measurement offers an exciting alternative to quantum tomography. Until recently measuring a 27-dimensional quantum state would have been a time-consuming, multistage process using a technique called quantum tomography, which is similar to creating a 3D […]

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UCL Researchers Use Quantum Mechanics to Explain the Efficiency of Photosynthesis

January 13, 2014

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In a newly published study, researchers from the University College London detail the transfer of energy from plant cells predicted by quantum physics. Light-gathering macromolecules in plant cells transfer energy by taking advantage of molecular vibrations whose physical descriptions have no equivalents in classical physics, according to the first unambiguous theoretical evidence of quantum effects […]

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Researchers Reveal New Secrets about Superconductivity and Magnetism

January 6, 2014

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Researchers detail new secrets about how superconductivity and magnetism can be related, revealing more about the quantum world of electrons. Superconducting materials exhibit unexpected behaviors when subjected to magnetic fields or high pressures – discoveries that have implications for controlling electrons in those special materials. According to two studies, one conducted at the Paul Scherrer […]

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Surprise Discovery Could Revolutionize Solar Energy

December 13, 2013

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In a newly published study, researchers from Cambridge’s Cavendish Laboratory detail the surprise discovery that could revolutionize solar energy. Researchers have been able to tune ‘coherence’ in organic nanostructures due to the surprise discovery of wavelike electrons in organic materials, revealing the key to generating “long-lived charges” in organic solar cells – material that could […]

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