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#quantum-physics — Public Fediverse posts

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  1. Noether’s Theorem: Symmetry→Conservation Law.

    Symmetries of the action imply conserved quantities per Noether's theorem.

    A path q(t) is shifted by δq = φ but smoothed in transition layers τ wide at t0 and t1, where Δq̇ ≈ φ/τ. Action changes there approximate ΔS ≈ (∂L/∂q̇) Δq̇ τ ≈ −(∂L/∂q̇ φ)(t1) and ≈ +(∂L/∂q̇ φ)(t0).
    Symmetry sets total ΔS = 0, hence (∂L/∂q̇ φ) is conserved from t0 to t1.

    Momentum conservation's derivation from space translation symmetry and energy conservation from time translation symmetry in mechanics and physics is done by it.

    #NoethersTheorem #Physics #TheoreticalPhysics #ClassicalMechanics #AnalyticalMechanics #LagrangianMechanics #Symmetry #ConservationLaws #ActionPrinciple #CalculusOfVariations #Mathematics #STEM #Science #PhysicsEducation #LearnPhysics #QuantumPhysics #FieldTheory #GeneralizedCoordinates #MomentumConservation #EnergyConservation #AngularMomentum #TheoreticalScience #PhysicsNotes #Infographic #ScienceCommunication #EducationalContent #EMNoether #MathPhysics #PhysicsStudents #STEMEducation

  2. Noether’s Theorem: Symmetry→Conservation Law.

    Symmetries of the action imply conserved quantities per Noether's theorem.

    A path q(t) is shifted by δq = φ but smoothed in transition layers τ wide at t0 and t1, where Δq̇ ≈ φ/τ. Action changes there approximate ΔS ≈ (∂L/∂q̇) Δq̇ τ ≈ −(∂L/∂q̇ φ)(t1) and ≈ +(∂L/∂q̇ φ)(t0).
    Symmetry sets total ΔS = 0, hence (∂L/∂q̇ φ) is conserved from t0 to t1.

    Momentum conservation's derivation from space translation symmetry and energy conservation from time translation symmetry in mechanics and physics is done by it.

    #NoethersTheorem #Physics #TheoreticalPhysics #ClassicalMechanics #AnalyticalMechanics #LagrangianMechanics #Symmetry #ConservationLaws #ActionPrinciple #CalculusOfVariations #Mathematics #STEM #Science #PhysicsEducation #LearnPhysics #QuantumPhysics #FieldTheory #GeneralizedCoordinates #MomentumConservation #EnergyConservation #AngularMomentum #TheoreticalScience #PhysicsNotes #Infographic #ScienceCommunication #EducationalContent #EMNoether #MathPhysics #PhysicsStudents #STEMEducation

  3. NIST: NIST Launches Center to Drive the Manufacture of Quantum Technologies. “The U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) has announced an agreement with SRI International, a nonprofit research and development institution, to help advance U.S. quantum research, development and manufacturing capabilities.”

    https://rbfirehose.com/2026/07/01/nist-nist-launches-center-to-drive-the-manufacture-of-quantum-technologies/
  4. NIST: NIST Launches Center to Drive the Manufacture of Quantum Technologies. “The U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) has announced an agreement with SRI International, a nonprofit research and development institution, to help advance U.S. quantum research, development and manufacturing capabilities.”

    https://rbfirehose.com/2026/07/01/nist-nist-launches-center-to-drive-the-manufacture-of-quantum-technologies/
  5. One Electron, Threaded Through Time

    In the spring of 1940 the telephone rang in the graduate residence at Princeton, and Richard Feynman, then a doctoral student, picked it up to hear the voice of his advisor, John Archibald Wheeler. Wheeler skipped the greeting. He had solved a mystery no one else had thought to name, he said, and he knew why every electron in the universe carries exactly the same mass and exactly the same charge. The answer was that they are all the same electron. […]

    bolesblogs.com/2026/07/01/one-

  6. One Electron, Threaded Through Time

    In the spring of 1940 the telephone rang in the graduate residence at Princeton, and Richard Feynman, then a doctoral student, picked it up to hear the voice of his advisor, John Archibald Wheeler. Wheeler skipped the greeting. He had solved a mystery no one else had thought to name, he said, and he knew why every electron in the universe carries exactly the same mass and exactly the same charge. The answer was that they are all the same electron. […]

    bolesblogs.com/2026/07/01/one-

  7. Molecules on a surface reach the ultimate quantum limit

    Check out the latest #publication “Nano–electron volt Fourier-limited transition of a single surface-adsorbed molecule” in “Science” by the #NanoOptics Division of Prof. Vahid Sandoghdar.

    In the video, Prof. Vahid Sandoghdar, Dr. Masoud Mirzaei, and Dr. Alexey Shkarin (in order of appearance) explain the #research behind the paper.

    Read the paper here 👉 science.org/doi/full/10.1126/s

    #Science #QuantumPhysics #QuantumOptics

  8. Molecules on a surface reach the ultimate quantum limit

    Check out the latest #publication “Nano–electron volt Fourier-limited transition of a single surface-adsorbed molecule” in “Science” by the #NanoOptics Division of Prof. Vahid Sandoghdar.

    In the video, Prof. Vahid Sandoghdar, Dr. Masoud Mirzaei, and Dr. Alexey Shkarin (in order of appearance) explain the #research behind the paper.

    Read the paper here 👉 science.org/doi/full/10.1126/s

    #Science #QuantumPhysics #QuantumOptics

  9. Researchers have utilized machine-learning algorithms to identify two new superconductive materials, YRu3B2 and LuRu3B2, demonstrating a novel methodology to rapidly filter practically infinite elemental combinations. The superconductivity of these materials arises from electrons forming flat bands within a specific geometric atomic structure.
    #CondensedMatterPhysics #QuantumPhysics #MaterialsScience #ComputationalPhysics #AI #sflorg
    sflorg.com/2026/06/phy06292601

  10. Researchers have utilized machine-learning algorithms to identify two new superconductive materials, YRu3B2 and LuRu3B2, demonstrating a novel methodology to rapidly filter practically infinite elemental combinations. The superconductivity of these materials arises from electrons forming flat bands within a specific geometric atomic structure.
    #CondensedMatterPhysics #QuantumPhysics #MaterialsScience #ComputationalPhysics #AI #sflorg
    sflorg.com/2026/06/phy06292601

  11. The Register: Boffin claims Microsoft’s supposed quantum leap does not compute due to ‘basic Python errors’. “Prestigious journal Nature has published a peer-reviewed critique of Microsoft’s claims to have made quantum computing breakthroughs – and the scientist who wrote the paper has essentially said Redmond got it wrong.”

    https://rbfirehose.com/2026/06/25/the-register-boffin-claims-microsofts-supposed-quantum-leap-does-not-compute-due-to-basic-python-errors/
  12. The Register: Boffin claims Microsoft’s supposed quantum leap does not compute due to ‘basic Python errors’. “Prestigious journal Nature has published a peer-reviewed critique of Microsoft’s claims to have made quantum computing breakthroughs – and the scientist who wrote the paper has essentially said Redmond got it wrong.”

    https://rbfirehose.com/2026/06/25/the-register-boffin-claims-microsofts-supposed-quantum-leap-does-not-compute-due-to-basic-python-errors/
  13. What is the Macroscopic Tunnelling Effect?

    100 years ago in Göttingen, the foundations for modern quantum physics were laid down. It transformed our understanding of nature. An important discovery since then has been the #MacroscopicTunnellingEffect, #NobelPrize #QuantumPhysics.

    Find out how this extraordinary phenomenon opens up new opportunities in research, and innovation - from superconducting circuits and #QuantumComputers: youtube.com/watch?v=Fpdz0ia7nKg

    Made by student group “Communicating Scientific Concepts Through New Media” #mathematics #Physics #SciComm

  14. What is the Macroscopic Tunnelling Effect?

    100 years ago in Göttingen, the foundations for modern quantum physics were laid down. It transformed our understanding of nature. An important discovery since then has been the #MacroscopicTunnellingEffect, #NobelPrize #QuantumPhysics.

    Find out how this extraordinary phenomenon opens up new opportunities in research, and innovation - from superconducting circuits and #QuantumComputers: youtube.com/watch?v=Fpdz0ia7nKg

    Made by student group “Communicating Scientific Concepts Through New Media” #mathematics #Physics #SciComm

  15. This simple twist could bring quantum computers closer to reality. Via @sciencedaily_official #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬 #ComputerSciences 🧑‍💻 #QuantumComputers 🖥️

    This simple twist could bring ...

  16. This simple twist could bring quantum computers closer to reality. Via @sciencedaily_official #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬 #ComputerSciences 🧑‍💻 #QuantumComputers 🖥️

    This simple twist could bring ...

  17. Einstein’s “biggest blunder” may finally have an explanation. Via @sciencedaily_official #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬

    Einstein’s “biggest blunder” m...

  18. Einstein’s “biggest blunder” may finally have an explanation. Via @sciencedaily_official #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬

    Einstein’s “biggest blunder” m...

  19. A 98-qubit trapped-ion quantum computer with all-to-all connectivity. Via @scientific_american #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬

    A 98-qubit trapped-ion quantum...

  20. A 98-qubit trapped-ion quantum computer with all-to-all connectivity. Via @scientific_american #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬

    A 98-qubit trapped-ion quantum...

  21. Sooner than expected? Useful quantum error correction promised for 2028. Via @arstechnica #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬 #ComputerSciences 🧑‍💻 #QuantumComputers 🖥️

    Sooner than expected? Useful q...

  22. Sooner than expected? Useful quantum error correction promised for 2028. Via @arstechnica #Science #Physics #QuantumPhysics #QuantumMechanics 🔭🔬🧪🥼🧑‍🔬 #ComputerSciences 🧑‍💻 #QuantumComputers 🖥️

    Sooner than expected? Useful q...

  23. For the first time, physicists have detected a high degree of multipartite quantum entanglement within a macroscopic, centimeter-sized crystal of a "strange metal." This demonstrates that massive objects made of countless particles can collectively exhibit fundamental quantum effects.
    #SolidStatePhysics #QuantumPhysics #QuantumMetrology #sflorg
    sflorg.com/2026/06/phy06162601

  24. For the first time, physicists have detected a high degree of multipartite quantum entanglement within a macroscopic, centimeter-sized crystal of a "strange metal." This demonstrates that massive objects made of countless particles can collectively exhibit fundamental quantum effects.
    #SolidStatePhysics #QuantumPhysics #QuantumMetrology #sflorg
    sflorg.com/2026/06/phy06162601

  25. #Spirituality #Science #QuantumPhysics #Psychology

    Our brains mathematically construct objective reality by interpreting frequencies that are ultimately projections (images) from another dimension, a deeper order of existence that is beyond both space and time: The brain is a hologram enfolded in a holographic universe.
    – Pribram and Bohm

  26. #Spirituality #Science #QuantumPhysics #Psychology

    Our brains mathematically construct objective reality by interpreting frequencies that are ultimately projections (images) from another dimension, a deeper order of existence that is beyond both space and time: The brain is a hologram enfolded in a holographic universe.
    – Pribram and Bohm

  27. Light-induced quantum friction is an unexpected phenomenon in which irradiating nanoscale particles—specifically fluorescent carbon nanotubes in aqueous solutions—with visible light decelerates their movement rather than accelerating or heating them.
    #PhysicalChemistry #TheoreticalPhysics #QuantumPhysics #Nanotechnology #MaterialsScience #sflorg
    sflorg.com/2026/06/chm06142601

  28. Light-induced quantum friction is an unexpected phenomenon in which irradiating nanoscale particles—specifically fluorescent carbon nanotubes in aqueous solutions—with visible light decelerates their movement rather than accelerating or heating them.
    #PhysicalChemistry #TheoreticalPhysics #QuantumPhysics #Nanotechnology #MaterialsScience #sflorg
    sflorg.com/2026/06/chm06142601