Quantum Physics

  1. Quantum Physics

    Scientists finally detected a quantum effect that blocks atoms from scattering light

    When all available quantum states are full, atoms can’t scatter light, thanks to the Pauli exclusion principle, new experiments show.

  2. Quantum Physics

    Scientists are one step closer to error-correcting quantum computers

    In a quantum computer made with trapped ions, multiple quantum bits were combined into one to detect mistakes.

  3. Quantum Physics

    One of nature’s key constants is much larger in a quantum material

    The fine-structure constant is 10 times its normal value in the material, giving a peek into what physics in an alternate universe could look like.

  4. Physics

    New ‘vortex beams’ of atoms and molecules are the first of their kind

    Twisted beams of atoms and molecules join other types of corkscrew beams made of light or electrons.

  5. Animals

    A proposed ‘quantum compass’ for songbirds just got more plausible

    Quantum physics could be behind birds’ magnetic sense of direction, new measurements indicate.

  6. Quantum Physics

    Physicists used LIGO’s mirrors to approach a quantum limit

    Using LIGO’s laser beams to reduce jiggling rather than detect gravitational waves, scientists have gotten closer to the realm of quantum mechanics.

  7. Particle Physics

    Muon magnetism could hint at a breakdown of physics’ standard model

    After two decades, a new measurement of the muon magnetic anomaly reinforces earlier hints that its value disagrees with standard physics.

  8. Quantum Physics

    ‘Designer molecules’ could create tailor-made quantum devices

    Scientists are making molecules suited to a variety of quantum tasks by building them up, atom by atom.

  9. Quantum Physics

    Drones could help create a quantum internet

    Flying drones sent entangled particles of light to two locations a kilometer apart.

  10. Quantum Physics

    The new light-based quantum computer Jiuzhang has achieved quantum supremacy

    A second type of quantum computer has now performed a calculation impossible for a traditional computer.

  11. Quantum Physics

    Galileo’s famous gravity experiment holds up, even with individual atoms

    When dropped, two types of atoms accelerate at the same rate despite their differences, much like objects in Galileo’s leaning Tower of Pisa experiment.

  12. Quantum Physics

    A measurement of positronium’s energy levels confounds scientists

    A gap in the energy levels of positronium seems to be substantially larger than predicted, and physicists don’t know why.