Particle

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The Particle Adventure: Interactive Adventure of the Inner Workings of the Atom (Particle Data Group, Lawrence Berkeley National Laboatory)
Online Particle Physics Information (SLAC Library)

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particle : any of the basic units of matter and energy (such as a molecule, atom, proton, electron, or photon) — Webster

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Particle is a small localized object to which can be ascribed several physical or chemical properties such as volume, density or mass. They vary greatly in size or quantity, from subatomic particles like the electron, to microscopic particles like atoms and molecules, to macroscopic particles like powders and other granular materials. Particles can also be used to create scientific models of even larger objects depending on their density, such as humans moving in a crowd or celestial bodies in motion. — Wikipedia

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Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation. Although the word particle can refer to various types of very small objects (e.g. protons, gas particles, or even household dust), particle physics usually investigates the irreducibly smallest detectable particles and the fundamental interactions necessary to explain their behavior. By our current understanding, these elementary particles are excitations of the quantum fields that also govern their interactions. The currently dominant theory explaining these fundamental particles and fields, along with their dynamics, is called the Standard Model. — Wikipedia

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Quantum Physics News Phys.org provides the latest news on quantum physics, wave particle duality, quantum theory, quantum mechanics, quantum entanglement, quantum teleportation, and quantum computing.

  • Scientists 'film' a quantum measurement
    on February 26, 2020 at 2:38 pm

    Measuring a quantum system causes it to change—one of the strange but fundamental aspects of quantum mechanics. Researchers at Stockholm University have now been able to demonstrate how this change happens. The results are published in the scientific journal Physical Review Letters.

  • Engineers ensure quantum experiments get off to...
    on February 26, 2020 at 2:09 pm

    The quantum mechanical properties of electrons are beginning to open the door to a new class of sensors and computers with abilities far beyond what their counterparts based in classical physics can accomplish. Quantum states are notoriously difficult to read or write, however, and to make things worse, uncertainty about those states' starting conditions can make experiments more laborious or even impossible.

  • Researchers report more accurate measurement of...
    on February 26, 2020 at 2:06 pm

    A research team from Bochum has determined the size of neutrons in a more direct way than ever before, thus correcting previous assumptions.

  • The first quantum orienteering by quantum...
    on February 26, 2020 at 12:27 pm

    The CAS key lab of quantum information, led by Prof. Guo Guangcan, Li Chuanfeng, Xiang Guoyong and collaborators, reports enhancing the performance of quantum orienteering with entangling measurements via photonic quantum walks. These results were published online by Physical Review Letters on February 13th.

  • A better starting point for exploring entanglement
    on February 25, 2020 at 6:17 pm

    Quantum entanglement is perhaps one of the most intriguing phenomena known to physics. It describes how the fates of multiple particles can become entwined, even when separated by vast distances. Importantly, the probability distributions needed to define the quantum states of these particles deviate from the bell-shaped, or 'Gaussian' curves which underly many natural processes. Non-Gaussian curves don't apply to quantum systems alone, however. They can also be composed of mixtures of regular […]


Quantum Physics News -- ScienceDaily News on quantum physics. Read current research on everything from quantum mechanics to quantum dots. Was Albert Einstein right?

  • Using light to put a twist on electrons
    on February 26, 2020 at 6:13 pm

    Method with polarized light can create and measure nonsymmetrical states in a layered material.

  • Radio waves detect particle showers in a block of...
    on February 26, 2020 at 2:12 pm

    A cheap technique could detect neutrinos in polar ice, eventually allowing researchers to expand the energy reach of IceCube without breaking the bank.

  • From China to the South Pole: Joining forces to...
    on February 25, 2020 at 5:29 pm

    A new study indicates that the next generation of neutrino experiments may well find the answer to one of the most pressing issues in neutrino physics.

  • Want to catch a photon? Start by silencing the sun
    on February 24, 2020 at 9:53 pm

    Researchers have created a 3D imaging system that uses light's quantum properties to create images 40,000 times crisper than current technologies, paving the way for never-before seen LIDAR sensing and detection in self-driving cars, satellite mapping systems, deep-space communications and medical imaging of the human retina.

  • Defects add color to quantum systems
    on February 24, 2020 at 8:29 pm

    Researchers are investigating light-emitting defects in materials that may someday form the basis of quantum-based technologies, such as quantum computers, quantum networks or engines that run on light. Once understood, these defects can become controllable features.