What is Quantum: Definition and 999 Discussions

In physics, a quantum (plural quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. The fundamental notion that a physical property can be "quantized" is referred to as "the hypothesis of quantization". This means that the magnitude of the physical property can take on only discrete values consisting of integer multiples of one quantum.
For example, a photon is a single quantum of light (or of any other form of electromagnetic radiation). Similarly, the energy of an electron bound within an atom is quantized and can exist only in certain discrete values. (Atoms and matter in general are stable because electrons can exist only at discrete energy levels within an atom.) Quantization is one of the foundations of the much broader physics of quantum mechanics. Quantization of energy and its influence on how energy and matter interact (quantum electrodynamics) is part of the fundamental framework for understanding and describing nature.

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  1. B

    Gaussian wave pack problem

    hi, I'm solving this statement, We split into parts Can some expert in Quantum say that my working is professional? Kind wishes to you
  2. B

    Particle in one dimension wave function from Quantum Mechanics

    Hi, I try and solve this problem I have solved the problem in different parts But me not sure how to plot the graph. Maybe someone knows? Merci
  3. D

    B Need documents to help me understand quantum computing please

    How did you find PF?: Good Need documents to help me understand quantum computing!
  4. Q

    I Experiment with quantum dot

    A quantum dot is placed in a line between two optic fibers The dot can emit a photon in every direction which is unknown. If the fibers are combined at a beamsplitter would there be interference if the photon is not observed outside the fibers? Do you know if somebody made such experiment...
  5. PeterDonis

    A A possible quantum field theory of tachyons?

    I have come across the following paper (arxiv preprint link, it looks like it is published in Phys Rev D) that claims to have found a consistent quantum field theory of tachyons, overcoming three issues which have been said in previous literature to make such a theory impossible...
  6. CHANDANKUMAR S

    Quantum information science

    I am currently a research scholar specializing in open quantum systems.
  7. P

    A Hard-Core Boson Model in K space

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  8. gentzen

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  9. Darmstadtium

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  10. Grinkle

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  11. M

    QM time independent perturbation theory

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  12. keyzan

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  13. L

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  14. Jim Kata

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  15. PhysicsEnjoyer31415

    B What is a Gravitational wave?

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  16. B

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  17. D

    B Dark Energy: Are We All Missing The Obvious?

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  18. L

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  19. adf89812

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  20. SWIRF

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  21. Elaren

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  23. A. Neumaier

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  24. K

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  25. S

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  26. S

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  27. K

    Quantum Well Centred at the Origin Doubled in Size at time t=0. Symmetry seems to render the question incorrect

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  28. N

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  29. H

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  31. Justina

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  32. Q

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  33. Penny57

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  34. S

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  35. M

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  36. K

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  37. RUTA

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  38. billtodd

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  39. M

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  40. Leandro Bolonini

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  41. flyusx

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  42. S

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  43. K

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  44. lambdadandbda

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  46. Marioweee

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  47. T

    I Double Check Normalization Condition

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  48. Hennessy

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  49. jedishrfu

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  50. jedishrfu

    News Google $5M XPRIZE for best uses for Quantum Computers

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