Feature Channels: Quantum Mechanics

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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.

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A Wayne State University professor recently received a three-year, $626,467 grant from the National Science Foundation’s Division of Physics. The project, “Probing Nonadiabatic Strong Field Ionization with Phase-Resolved Attoclock,” will research a quantum mechanical process known as quantum tunneling.

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Scientists developed a new light source that creates super-bright entangled photons. These photons are crucial for ultra-secure communication in quantum networks. The source combines two technologies to achieve high brightness and entanglement, overcoming the limitations of previous methods. This paves the way for more efficient and secure quantum communication.

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A star material for hosting quantum information, diamond nevertheless presents a challenge: Signals from the bits of quantum information embedded in diamond are often messy and inconsistent. In work supported by the Q-NEXT quantum center, which is led by the U.S. Department of Energy’s Argonne National Laboratory, a Stanford University group has uncovered the source its apparently temperamental nature. Zooming in on diamond’s atomic-level makeup, they demonstrated that the diamond’s variegated interior largely explained the erratic signals from quantum bits embedded within.

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Seven entrepreneurs comprise the next cohort of Innovation Crossroads, a Department of Energy Lab-Embedded Entrepreneurship Program node based at Oak Ridge National Laboratory. The program provides energy-related startup founders from across the nation with access to ORNL’s unique scientific resources and capabilities.

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The Chicago-based Duality quantum accelerator has accepted its fourth cohort of startups into its program as the quantum revolution arrives in Illinois.

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Today, The Grainger College of Engineering at the University of Illinois Urbana-Champaign joined other partners from around the state in officially announcing its leadership role in the Illinois Quantum and Microelectronics Park.

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Using two optically trapped glass nanoparticles, researchers observed a novel collective Non-Hermitian and nonlinear dynamic driven by nonreciprocal interactions. This contribution expands traditional optical levitation with tweezer arrays by incorporating the so called non-conservative interactions.

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Illinois Grainger Engineering physics professor Brian DeMarco stood on stage in Chicago on Tuesday when Illinois Governor J.B. Pritzker announced the new federal- and state-funded Quantum Proving Ground (QPG), which promises to combine scientific rigor with industry and academic expertise to design the future of quantum computing.

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Researchers have found similarities in how concepts of energy, pressure, and confinement apply to atomic nuclei and superconductivity. Specifically, in both hadrons and superconductors, how particles are confined to a specific volume can be described with the same mathematical framework derived from quantum chromodynamics.

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The second virtual session on April 30 featured diverse speakers discussing their unique journeys into QIS.

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Researchers at Berkeley Lab have successfully demonstrated an innovative approach to find breakthrough materials for quantum applications. The approach uses rapid computing methods to predict the properties of hundreds of materials, identifying short lists of the most promising ones.

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This scheme significantly improves the frequency-time resolution of spectra, yielding elaborate HOM interference which enables the selective access of stimulated Raman scattering. In addition, no grating is required for detection, simplifying the experimental setup.