Feature Channels: Quantum Mechanics

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Novel research developments as a result of multi-institution collaboration at the Quantum Systems Accelerator

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Scientists have for the first time mechanically detected individual nuclear decays occurring in a microparticle. The research used a new technique. Rather than detecting the radiation emitted by the nuclei, the researchers detected the occurrence of decay by measuring the tiny “kick” to the entire microparticle that contained the decaying nucleus as this radiation escaped.

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In 2D quantum materials, chiral edge states are 1D conducting channels in which electrons travel only in one direction and electron collisions are strongly suppressed. This means chiral channels act like resistance-free conductors.

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New research has implications for fundamental science, quantum computing and future technological applications.

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The robust operation of quantum entanglement states is crucial in quantum information, and computation. However, it is a great challenge to complete such a task because of decoherence and disorder.

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Revealing the underlying patterns behind complex systems and predicting their behavior has become a focal point of current interdisciplinary research. In this study, researchers delved into the intrinsic mechanisms of complex systems behavior of photonic phase transitions in one-dimensional Rayleigh scattering systems by establishing a Rayleigh-scattering-phase-variation model with experimental realization. This work expands the current understanding of photonic phase transitions, which is an important reference value for the study of various complex systems. Furthermore, it advances the application of random fiber lasers in critical fields such as high-power laser devices.

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Exploring quantum heat engines is vital for designing highly efficient power systems beyond classical limits and for understanding quantum thermodynamics. Scientists demonstrate the first implementation of chiral thermodynamic cycles and quantum state transfers in a trapped ion by dynamically encircling a closed loop excluding Liouvillian exceptional points.

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For the first time since X-rays were discovered, researchers have successfully performed X-ray spectroscopy to identify the element of a single atom at a time. The achievement takes advantage of improvements to synchrotron X-ray light sources.

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An NAU physicist is spearheading groundbreaking new quantum physics research, a field with the potential to revolutionize computing, communication, security and sensing on a global scale

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Sandia National Laboratories and Arizona State University, two research powerhouses, are collaborating to push the boundaries of quantum technology and transform large-scale optical systems into compact integrated microsystems.

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A recent study shows that the superconducting edge currents in the topological material molybdenum telluride (MoTe2) can sustain large changes in the “glue” that keeps the superconducting electrons paired. To sustain these changes, the bulk and the edge of MoTe2 must behave differently. This surprise finding will help researchers create and control anyons and aid in the development of future energy-efficient electronics.

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Underground at the Switzerland-France border, the Large Hadron Collider (LHC) at CERN holds the record for the world’s largest particle accelerator. Its ring alone is nearly 17 miles around. With this tool, scientists smash together subatomic particles to help them better understand the tiny building blocks of the universe. One area that scientists use the LHC to study is the quark-gluon plasma.

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Hitherto a mystery, the thermal energy loss of qubits can be explained with a surprisingly simple experimental setup, according to research from Aalto University.

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At Penn State and as a member of the Q-NEXT quantum research center, Nitin Samarth investigates atom-scale materials that could serve as the foundation for future quantum technologies.

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For the first time, researchers from Sandia National Laboratories have used silicon photonic microchip components to perform a quantum sensing technique called atom interferometry, an ultra-precise way of measuring acceleration. It is the latest milestone toward developing a kind of quantum compass for navigation when GPS signals are unavailable.

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Our nation’s security depends on the effective detection of nuclear materials at our borders and beyond. To address this challenge, Rensselaer Polytechnic Institute (RPI) physicist Moussa N’Gom, Ph.D., is leading research aimed at developing a quantum sensing probe to detect and characterize special nuclear materials precisely and without contact. Special nuclear materials are only mildly radioactive but can be used in nuclear explosives.

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Stony Brook University is leading a new project funded by the U.S. National Science Foundation (NSF) to advance Quantum Information Science and Technology (QIST) in the United States. The project is one the first five under the NSF’s National Quantum Virtual Laboratory (NQVL) program.

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Scientists from Yale University and the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have developed a systematic approach to understanding how energy is lost from the materials that make up qubits. Energy loss inhibits the performance of these quantum computer building blocks, so determining its sources — and adjusting the materials as necessary — can help bring researchers closer to designing quantum computers that could revolutionize several scientific fields.

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Supported by the Q-NEXT quantum center, scientists at three research institutions capture the pulsing motion of atoms in diamond, uncovering the relationship between the diamond’s strain and the behavior of the quantum information hosted within.

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Researchers from Islamic Azad University have developed innovative designs for quantum circuits that reduce costs by over 25% and significantly enhance error detection. These advancements aim to improve the efficiency and reliability of quantum computing.