quantum physics

maybe i am asking a bit much but does anyone in ATS know anything on Quantum Physics? i have no idea about what it is but i have heard it mentioned many times before and i was just wondering what its all about

if nobody can answer dont worry, i heard somewhere that its a subject that mankind hasn't cracked yet!!!

hello Daystar,

Quantum physics is the study of particles that make up electrons, neutrons and protons. You need to forget all logic when dealing with quantum physics as there is nothing but uncertainty. This is a subject that requires a lot of study and patience in understanding.

here is a link to get you started. I don't know everything about it, but am grasping the concept better everyday. I have a lot of info on this and am willing to share, especially if you get into quantum consciousness.

Oh yeah, this post should be in the science and technology section.

Here is a link to get you started.

best of luck!

[Edited on 28-5-2003 by 29MV29]

Another link, perhaps you should start here to actually understand quantum theory.

Fanx MV

Simply :

At the beginning of the twentieth century, the scientists thought that they had included/understood the great fundamental principles of the universe. The atoms were the solids blocks of construction of nature; people believed in the Newtonian laws of the movement, the majority of the problems of the physicists seemed to be solved.
Nevertheless, the theory of relativity of Einstein replacing Newtonian mechanics, the scientists realized gradually that their knowledge was far from being complete.
The field incipient from quantum mechanics was of particular interest, by completely deteriorating the fundamental precepts of physics.

Chronology of Quantum Physic :

1900 max Planck suggests that the radiations are quantifiable (they can take only values which are multiples of an elementary value called quantum).

1905 Albert Einstein, one of the rare scientists who considered the ideas of Planck seriously, proposes a quantum of light (the photon) which behaves like a particle. The other theories of Einstein explain the equivalence of the mass and energy, the duality wave-particle of the photons, the principle of equivalence and restricted relativity.

1909 Hans Geiger and Ernest Marsden, under the responsibility of Ernest Rutherford, send particles alpha on a gold sheet and observe great scattering angles, which suggests the existence of a core positively charged, small and dense inside the atom. 1911 Ernest Rutherford shows the existence from the core like result from the experiment from diffusion alpha realized by Hans Geiger and Ernest Marsden.

1912 Albert Einstein explains the curve of the space time.

1913 Niels Bohr builds the theory of the atomic structure based on quantum assumptions.

1919 Ernest Rutherford proves the existence of the proton.

1921 James Chadwick and E.S. Bieler conclude that a force of great intensity (known as strong) maintains the core plain.

1923 Arthur Compton discovers quantum nature (particulate) x-rays, confirming that the photons are particles.

1924 Louis de Broglie proposes undulatory properties for the matter.

1925 (Jan) Wolfgang Pauli formulates the principle of exclusion for the electrons inside an atom.

1925 (April) Walther Bothe and Hans Geiger show that energy and the mass are preserved in the atomic processes.

1926 Erwin Schroedinger develops the wave mechanics, which describes the behavior of the quantum systems for bosons. Max Born gives a probabilistic interpretation of quantum mechanics. G.N. Lewis proposes the name of photon for the quantum of light.

1927 It was observed that certain materials emitted electrons (beta decay). The atom and the core having discrete energy levels, it was difficult to include/understand how the electrons produced in this transition could have a continuous spectrum (see 1930 for the answer).

1927 Werner Heisenberg formulates the principle of uncertainty: the more you have information on the energy of a particle, the less know you over the time during which it has this energy (and vice versa). The same principle applies with the impulse and the position.

1928 Paul Dirac combines quantum mechanics and relativity restricted to describe the electron.

1930 quantum mechanics and restricted relativity are well established. There are only three elementary particles: protons, electrons and photons. Max Born, fascinating knowledge of the equation of Dirac, known as: "physics such as we know it will have died in six months".

It doesn't stop at 1930.... THere's more...

I liked the TV serie called "code Quantum".

1931 Paul Dirac realizes that the particles charged positively necessary for its equation are new objects (it names them positrons). They are exactly like the electrons, but positively charged. It is the first example of antiparticles.

1931 James Chadwick discovers the neutron. The mechanisms of nuclear connection and disintegration become major problems.

1933-34 Enrico Fermi establishes the theory of the beta decay which introduces the weak interaction. It is the first theory which explicitly uses the neutrinos and the change of savour of the particles.

1933-34 Hideki Yukawa combines relativity and the quantum theory to describe the nuclear interactions by the exchange of new particles (mesons called pawns) between protons and neutrons. From the size of the core, Yukawa concludes that the mass of these mesons was higher than the mass of 200 electrons. It is the starting point of the mesonic theory of the nuclear forces.

1937 a particle having the mass of 200 electrons is discovered in the cosmic radiations. Whereas at the beginning the physicists thought that it was the pawn of Yukawa, one discovered later than it was a muon.

1938 E.C.G. Stuckelberg observes that the protons and the neutrons do not disintegrate in a whole of electrons, neutrinos, muons or their antiparticles. The stability of the proton cannot be explained in term of conservation of energy or load; it proposes the conservation independent of the heavy particles.

1941 C Moller and Abraham Pais introduce the word "nucleon" like generic term for the protons and the neutrons.

1946-47 the physicists carry out that the particle resulting from the radiation cosmic and interpreted like a meson by Yukawa, is in fact a "muon", the first particle of the second generation of matter particles to being discovered. I I Rabi comments on "Which ordered that?". The term "lepton" is introduced to describe the objects which very strongly do not interact (the electrons and the muons are leptons).

1947 a meson which strongly interacts is discovered in the cosmic radiations, and proves to be a pawn. the 1947 physicists develop procedures to calculate the electromagnetic properties of the electrons, positrons and photons. Introduction of the diagrams of Feynman.


1948 the synchrocyclotron of Berkeley produces the first artificial pawns.

1949 Enrico Fermi and C.N. Yang suggest that the pawn has a formed composite structure of a nucleon and a antinucl�on. This idea of composite particles is completely a revolutionist.

1950 Discovered neutral pawn.

1951 Two new types of particles are discovered in the cosmic radiations, by the observation of trajectories in the shape of V, and by the rebuilding of objects electrically neutral whose disintegration produces the two objects charged which leave the traces. The particles are named the lambda-0 and K-0.

1952 Discovered of a particle called delta: there are four similar particles (delta++, delta+, delta-0, and delta -.)


1952 Donald Glaser invents the bubble chamber. The Cosmotron of Brookhaven, an accelerator of 1,3 GeV, enters in operation.

1953 the beginning of "the explosion of the particles" - a true proliferation of new particles is discovered.


1953 - 57 the diffusion of electrons on cores reveals the distribution of the density of load inside the protons and the neutrons. The description of this electromagnetic structure of the protons and the neutrons suggests a kind of structure internal of these objects, although they are still regarded as elementary particles. 1954 C.N. Yang and Robert Mills develop a new class of theories called "theory of gauge". This type of theory forms the bases of the Standard Model.

Nans i am impressed!!!

thanx alot

The God Particle, by Leon Lederman

Very good reading on the empirical research involved in quantum mechanics. Not only does Lederman convey very confusing work in an almost understandable way...but he's hilarious! I really enjoyed this book and it has a lot of historical review about the research work done in this field of science.

You know, I'd like to say, that it seems very much and maybe this is obvious but here it goes...

It seems very much that Quantum phisics is applying math to reality.

See we live in a world where infinity doesn't exist and numbers can't be seen.

But these smaller than atoms particles, seem to exist in a world of only math, not reality, they have no mass, or their mass is small...however if they have mass they usually behave as in duality, a wave//particle. Like the electron.

So it seems like these subatomic particles, and the general science that goes with it, is the bridge between the REAL world, the world of rocks stone, fluid dynamics, lava, rain, storms, radiation...and the Mathematical world. Which when you get up there, is just completely unrealistic. Yet it's there.

Like an unseen layer over our every day lives.

So maybe that's what quantum physics is specifically, that bridge between what can be measured, and what can only be represented by mathematical equations.

Anyone else agree?

"Nothing rests; everything moves; everything vibrates."--The Kybalion.

The difference between solids, liquids, gases, light, ether, spirit, etc. are levels of vibration. Solids vibrate at a slow rate while something like light vibrates very quickly. They're all made up of particles.

"As above, so below; as below, so above."--The Kybalion.

Just like electrons revolve around the nucleus of an atom; the planets revolve around the Sun and the Sun even has an orbital path...
It's the law of correspondence.


ONE