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  1. Vor 23 Stunden · Quantum mechanics is a fundamental theory in physics that describes the behavior of nature at and below the scale of atoms. [2] : 1.1 It is the foundation of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science . Quantum mechanics can describe many systems that ...

  2. en.wikipedia.org › wiki › Matter_waveMatter wave - Wikipedia

    Vor 23 Stunden · Quantum mechanics. Matter waves are a central part of the theory of quantum mechanics, being half of wave–particle duality. At all scales where measurements have been practical, matter exhibits wave -like behavior. For example, a beam of electrons can be diffracted just like a beam of light or a water wave.

  3. Vor 23 Stunden · In theoretical physics, quantum field theory ( QFT) is a theoretical framework that combines classical field theory, special relativity, and quantum mechanics. [1] : xi QFT is used in particle physics to construct physical models of subatomic particles and in condensed matter physics to construct models of quasiparticles.

  4. Vor 23 Stunden · Quantum mechanics. The path integral formulation is a description in quantum mechanics that generalizes the stationary action principle of classical mechanics. It replaces the classical notion of a single, unique classical trajectory for a system with a sum, or functional integral, over an infinity of quantum-mechanically possible trajectories ...

  5. Vor 23 Stunden · Some of the major unsolved problems in physics are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The others are experimental, meaning that there is a difficulty in creating an experiment to test a proposed theory or investigate a phenomenon in greater detail.

  6. en.wikipedia.org › wiki › WaveWave - Wikipedia

    Vor 23 Stunden · Wave. Surface waves in water showing water ripples. In physics, mathematics, engineering, and related fields, a wave is a propagating dynamic disturbance (change from equilibrium) of one or more quantities. Periodic waves oscillate repeatedly about an equilibrium (resting) value at some frequency. When the entire waveform moves in one direction ...

  7. Vor 23 Stunden · Quantum Telescope. In theory, an entangled particle far out into space would instantaneously transmit its state to its equivalent on Earth. An array of paired particles exposed to light should therefore be capable of sending a negative image to the equivalent array on Earth, thus producing a photographic image.