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Quantum Gamma Ray Laser: No Definitive Information Available in Provided Sources

Quantum Gamma Ray Laser: No Definitive Information Available in Provided Sources

The provided sources do not contain specific information regarding the existence or development of a quantum gamma ray laser. While the concept of gamma rays having extremely high photon energies and short wavelengths is discussed, and the principles of quantum theory, including the quantization of energy and the photon's role in energy exchange, are outlined, there is no direct mention or description of a quantum gamma ray laser. The texts refer to different photon energies used in medical technologies like X-rays or lasers, and the historical development of quantum mechanics, which underpins modern technologies from lasers to semiconductor devices. However, these discussions do not extend to the specific application of quantum principles to create a gamma ray laser.

Oak Ridge National Laboratory Seeks Postdoctoral Researchers for Quantum Materials Electron Spectroscopy

Oak Ridge National Laboratory Seeks Postdoctoral Researchers for Quantum Materials Electron Spectroscopy

The Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory (ORNL) is actively recruiting two Postdoctoral Research Associates. These positions are focused on advancing the development and application of next-generation electron microscopy and spectroscopy capabilities, specifically for investigating quantum materials. The successful candidates will contribute to novel scientific instrumentation and explore fundamental relationships between material structure, electronic behavior, and collective excitations. The research will involve developing and applying advanced approaches to momentum-resolved electron energy-loss spectroscopy (qEELS), with opportunities in instrument development, experimental measurements, computational modeling, and data-driven analysis. The roles are within the Electron Microscopy and Microanalysis (eMMA) Group of the Nanomaterials Characterization Section, part of ORNL’s Physical Sciences Directorate, and involve collaboration with other ORNL divisions and e...

No. 2 Maryland field hockey’s Maddie Vasilios is the epitome of a student-athlete

No. 2 Maryland field hockey’s Maddie Vasilios is the epitome of a student-athlete

The four-year Terp has made strides on the field and in the boardroom during her time in College Park.

Elmos Semiconductor SE Wins 'European Innovator 2026' Award for Quantum Random Number Generator

Elmos Semiconductor SE Wins 'European Innovator 2026' Award for Quantum Random Number Generator

Elmos Semiconductor SE Wins 'European Innovator 2026' Award for Quantum Random Number Generator

Laser-Cooled Molecules Achieve Record Entanglement Fidelity at Higher Temperatures

Laser-Cooled Molecules Achieve Record Entanglement Fidelity at Higher Temperatures

Researchers have achieved a new record in the direct entanglement of laser-cooled molecules, reaching 97.6% fidelity in entangled states. This breakthrough, led by John Doyle, involved optimizing the arrangement of calcium monofluoride (CaF) molecules in specific three-dimensional geometries, which increased interaction quality by approximately 40% compared to previous two-dimensional setups. A key innovation was the implementation of a 'geometric echo protocol,' which rapidly repositions one molecule to counteract trap drift and boost coherence by a factor of three. This method allowed for the creation of highly stable entangled pairs even with molecules that were substantially hotter than those typically used in other leading entanglement experiments. The work, published as a preprint on arXiv, suggests these methods are broadly applicable to other molecular tweezer platforms.

CERN LHCb Collaboration Captures Evidence of Ultra-Rare B Meson Decay

CERN LHCb Collaboration Captures Evidence of Ultra-Rare B Meson Decay

Physicists at the European Organization for Nuclear Research (CERN) have captured evidence of an extremely rare particle decay, specifically the decay of a 'Bd meson' into a 'muon' and an 'anti-muon'. This event is predicted to occur only once in 10 billion instances. The international Large Hadron Collider beauty (LHCb) collaboration announced this finding on November 3rd, with the research paper submitted to the international journal 'Physical Review X' after being posted on the preprint server 'arXiv' on October 30th. While this observation does not indicate new physics, it aligns with the predictions of the Standard Model of particle physics. The LHCb collaboration utilized data collected in 2024–2025, following an upgrade in 2022 that significantly increased the detector's data collection capacity. Machine learning was employed to analyze vast amounts of proton collision data to identify these rare decay candidates. The statistical significance of the Bd meson decay evidence is 3 sigma, increasing to ...

Fudan University Researchers Develop High-Purity Barium Ion Qubit Loading Method

Fudan University Researchers Develop High-Purity Barium Ion Qubit Loading Method

Researchers at Fudan University have introduced a novel method for rapidly and selectively loading barium ion qubits from naturally abundant sources, eliminating the need for costly and time-consuming isotope enrichment. This advancement is crucial for scaling up quantum computing systems. The team developed a three-step photoionization scheme that uses specific laser wavelengths (791 nm, 554 nm, and 532 nm) to selectively populate ion traps with either ^(137)Ba+ or ^(135)Ba+ ions. This process, termed 'relayed selectivity,' effectively suppresses the excitation of unwanted isotopes, with no contaminant ions detected during experiments. The 791 nm excitation wavelength is key for initial isotope isolation due to its well-resolved isotope-shifted hyperfine structure, while the 554 nm resonant transfer further refines purity. The final ionization step uses a 532 nm Raman beam, avoiding the issues associated with ultraviolet lasers, such as inducing unwanted charging on the ion trap.

International Researchers Create Room-Temperature Quantum State, Advancing Practical Quantum Technology

International Researchers Create Room-Temperature Quantum State, Advancing Practical Quantum Technology

An international team of researchers has successfully engineered an exotic quantum state of matter that operates at room temperature, a significant departure from the extreme cooling typically required for such states. This breakthrough, detailed in Science Advances, involved creating a supersolid in an exciton-polariton Bose-Einstein condensate using a microcavity, a light-trapping structure. The setup is noted for its relative inexpensiveness and voltage controllability, capable of functioning at temperatures up to 60 °C (140 °F). This quantum state, which exhibits properties of both a superfluid and a solid with a crystal-like structure, was observed for fractions of a second, sufficient for the necessary observations. The research points towards more practical applications of quantum technology in advanced computing systems and sensors by simplifying the study of quantum behavior in superfluids and supersolids.

Physicist Hongsheng Zhang's Research Suggests Time Travel to the Past is Impossible in Most Theoretical Universes

Physicist Hongsheng Zhang's Research Suggests Time Travel to the Past is Impossible in Most Theoretical Universes

Hongsheng Zhang, a physicist at the University of Jinan in China, has presented research indicating that traveling into one's own past is impossible in a broad class of theoretical universes. The core of his argument rests on the principle that in relativity, the direction of light can never be at right angles to an object's direction through time. This implies that anything moving slower or faster than light must traverse spacetime in a consistent direction, akin to climbing a staircase without the ability to descend. This research, which is currently awaiting peer review, suggests that the concept of 'closed timelike curves'—journeys through spacetime that loop back to their origin—are generally not feasible. Zhang's findings do not rely on exotic matter, quantum effects, or specific assumptions about the universe's composition, focusing instead on the fundamental directions within spacetime.

Research Explores Nonlinear Propagation and Attenuation of Laser Beams in Plasma

Research Explores Nonlinear Propagation and Attenuation of Laser Beams in Plasma

A recent study investigates the nonlinear propagation and attenuation dynamics of finite Airy–Gaussian (AiG) laser beams within a non-relativistic, isotropic collisionless plasma that features an exponential density profile. The research employs the Wentzel–Kramers–Brillouin (WKB) approximation alongside the paraxial ray approximation. This methodology leads to a set of coupled differential equations that govern the transverse evolution of the beam's width. Numerical analysis conducted as part of the study indicates that the dimensionless adjustable density parameter significantly impacts the oscillatory behavior, self-focusing, defocusing, and attenuation characteristics of these AiG beams when interacting with non-uniform dense plasma. The findings suggest that a weaker plasma inhomogeneity can extend the propagation distance of the laser beams and alter the balance between defocusing and nonlinear self-focusing effects. This detailed examination provides insights into how laser beams behave in complex p...

University of Maryland Wrestlers Mateo Vinciguerra and Latrell Schafer Secure Titles at Journeymen Collegiate Classic

University of Maryland Wrestlers Mateo Vinciguerra and Latrell Schafer Secure Titles at Journeymen Collegiate Classic

University of Maryland Wrestlers Mateo Vinciguerra and Latrell Schafer Secure Titles at Journeymen Collegiate Classic

Researchers Demonstrate Fundamental Space-Time Limit for Electrons, Advancing Future Electronic Devices

Researchers Demonstrate Fundamental Space-Time Limit for Electrons, Advancing Future Electronic Devices

An international team of researchers has experimentally demonstrated a fundamental limit to the precision with which an electron’s position and the time of its motion can be simultaneously determined. This work, involving groups from the Regensburg Center for Ultrafast Nanoscopy and the Max Planck Institute, utilized a laser system with high temporal resolution. In the experiment, electrons were directed from an ultrasharp metal tip to a silver surface, with their motion recorded through electric current and transfer time measured using two light pulses. The electrons exhibited quantum tunneling, behaving as quantum waves, with motion observed on attosecond timescales. Quantum simulations confirmed the experimental results, showing electrons responded to the light field with a delay of approximately 500 attoseconds. The study also revealed that increased precision in determining an electron's motion time requires more energy, causing the electron's wave packet to stretch spatially.