Quantum physics Definition and 728 Threads

Quantum Physics and the "Real" World Could it be argued that the four energy levels of an atom relate to states of matter in our macro world? For example something is a solid, then you bump it up an energy level and it becomes liquid, bump it up again and it becomes gas, again and it becomes...

What would be the prerequisites before learning quantum physics? Type of math, normal physics, etc.

Well, a week ago my Professor said the space of quantum physical states was a Hilbert space. Thing is, he just said it, and moved on. So I have a vector space with a scalar product. Is it, indeed, Hilbert? That is, is it complete? I guess I'll see the answer next semester, in real functions...

When I'm in a dimension higher than 1, do I need to integrate over all space (V) or only the x axis? Thanks in advance.

here are another questions,I need someone to help me! (1)A metal work a work function of 2.40 eV is illuminated with a beam of monochromatic light.The stopping potential for the emmited electrons is 2.50 V.What is the wavelength of the light in nanometer? (2)What is the lowest frequency of...

Quantum physics movie -- What the *$@! are we thinking? And upcoming movie.. My friend who is learning calculus and physics, and I teach him what I know, works at movie theatre. He told me about a new movie in 2004, called "What the fuc* are we thinking?" It's about quantum physics and...

people are talking about Quantum physics and many such things.But what thay are proving now is what is already told by spiritual leaders of Hinduism,taoism long time back...where is this leading to?

Quantum Physics Questions!Very Very urgent please please respond a) A student obserbs the LED from a distance of 0.20 m.The pupil of her eye has a diameter of 0.6mm.Calculate the no of photons which enter her eye /sec?? Plz give me some hint and i'll try to solve it. b)Explain in terms of...

Well, unlike other areas of physics where the rules are predictable 100% of the time and every aspect can be known with definite precision, quantum dynamics is not as elegant. For example, we can know the position of a an electron, but not it's speed or so on, or something like that. Perhaps...

Hi all, I started on my physics program this semester. But things begin to puzzle me much, especially quantum mechanics. I hope that you wuold take the time to answer a few of my puzzles. I used Sakurai's book in my quantum mechanics course. It is said that in the position space, the...

hola. i have to do a report comparing Newtonian physics to quantum physics. are there any good sites or other resources that you know of? thanks

Is it possible to specify cellular biology by incorperating the laws of quantum physics?

Hi, I've been trying to figure these two questions out but they haven't beeen working. 1. A hydrogen atom is in its fifth excited state. The atom emits a 1090 nm wavelength photon. Determine the maximum possible orbital angular momentum of the electron after emission. Express your answer as...

Could anyone please recommend some beginner-intermediate books on quantum physics for me? I don't want a lot of math, but I would like to learn the basic equations of different phenomena. Thanks.

I've been hearing a lot about "loop gravity" latey. I am not even sure if I am under the right title "quantum physics". In short can anyone tell me what loop gravity is? Thanks

Does free will exist? according to Newton the universe is deterministic, and therefore free will does not fit into this. But since the advent of quantum physics, the universe is not said to be entirely deterministic, is there now room for free will? some physicists believe that the wave...

I have a few questions about quantum physics. First, what is the difference between quantum physics, quantum theory, quantum mechanics, etc? Secondly, I have absolutely no clue about quantum physics. I talked with a friend of mine about it and it seems like something that I would like to...

Hey guys, I'm very interested in physics but I am studying computer science at univeristy so I don't get to learn it formally anymore. However, I still read to learn. I recently read Einsteins book on relativity and Stephen Hawking's A Brief History of Time. I now want to read a good book...

Hello, I am in first year physics and I was wondering if anyone could help me out with a question. Its dealing with Heisenberg's Uncertainty prinicple: A meson is an unstable particle produced in high-energy paritcle collisions. Its rest energy is about 135 MeV and it exisits for an average...

Fill me in -- New to this Hi guys, I've just finished Grade 12 Physics, well almost, but regardless they cut us off at the most interesting part. Our class was just getting into Nuclear Reactors, Half Lives, and the seemingly infinite sub-atomic...energies I guess...(as well as anti-matter and...

Hi, my name is Jeremiah Hendricks and I recently completed a research paper on the effects quantum physics has had in other fields. Part of our assignment is to get feedback on our paper from an appropriate audience. It would be helpful if you guys could read my paper and then answer the quick...

Hello all. I'm new to the forum, and I'm not a physicist. I'm a psychologist. I need some help understanding the meaning of the mathematics applied in quantum physics, when calculating the probability for a particle being located at a certain point in space and time. I understand that there...

I am a first year university student (and have taken chemistry and physics through high school, and still do) and was wondering if anyone had suggestions for reading that would give me a good introduction to the basic background ideas behind quantum physics. I've already learned a good deal...

Can Anyone tell me a good book on Quantum Physics? -benzun

will someone explain to me what quantum physics i watched a show on it but was not compleatly paying attention

For the ground state of the hydrogen atom, evaluate the probabilty density psi^2(r) and the radial probability density of P(r) for the positions. a) r = 0 b) r = rb I confused how this probability function is used. What's the technique here? Thanks

Calculate the smallest allowed energy of an electron were trapped inside an atomic nucleus of diameter 1.4x10^-14 meters. Compare this number with the several MeV of energy binding protons and neutrons inside the nucleus. On this basis, should we expect to find electrons within the nucleus...

www.spiritofmaat.com/archive/feb2/bearden.htm has anyone read this? skip the fist part if you wish, its the second part that may be interesting