0
Two questions about your question:
1) What do you mean by "advanced"?
2) What is your starting point, from which you want to know how far QM had advanced?
QM began in 1900, with Max Planck's observation that the spectrum of black body radiation could be explained with the mathematical assumption that light energy was quantized -- ie, that the energy in light at a specific frequency had a minimal amount. It made a major advance when, five years later, Einstein showed that this same assumption would explain the photo-electric effect. QM has advanced a GREAT DEAL since then, as you could imagine.
The most significant advance over the last few decades has been a theoretical framework called "The Standard Model," which blends QM with special relativity, and makes predictions that agree with experiment to TEN significant digits. Because of this agreement between theory and experiment, the Standard Model has been called the most accurate scientific theory ever.
The biggest event in QM over the last few decade or so has been observational evidence that pretty much refutes Local Hidden Variables.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Is quantum mechanics valid only for very small particles like atoms only?
Quantum Mechanics is valid for nearly everything (So far) it's just that the effects of it are only seen in microscopic scales like individual particles.
What is the significance of zero point energy in quantum mechanics?
AnswerZero-point energy (not to be confused with Vacuum Energy) is the lowest possible energy that a quantum mechanical physical system may have and is the energy of the ground state. This energy comes from the fact that after you remove all thermal and kinetic energy from an atom there is still quantum mechanical harmonic vibration that arises due to the Heisenberg Uncertainty Principle. This energy, so far, can not be taken away from a system.
Who isolated quarks?
Short Answer:The history of quantum theory is somewhat complex, but Werner Karl Heisenberg (1901 - 1976) was awarded the 1932 Nobel Prize in Physics "for the creation of quantum mechanics". It would be unrealistic to describe the work of Heisenberg as encompassing the whole process of discovery, but it was, unquestionably, his ideas which seeded the beginnings of the correct mathematical formulations of quantum theory that has evolved to the form that we use today.Additional Answer:Quantum theory, or quantum mechanics, originated evolved from the the work of Albert Einstein and Max Planck in the early 1900's which introduced Planck's constant and the work on the photon, as a quantum of light. Later, Niels Bohr came along and applied the quanta to matter, giving rise to theories on the constituents of atoms known as electrons, protons, and neutrons.The odd behavior of the mechanics in quantum theory, like that of the double slit experiment, came later on during the mid 20's, which were then resolved by physicists Werner Heisenberg, Max Born, Wolfgang Pauli, and Erwin Schrodinger.
Can a magnet be unipolar?
No it can not. About 75 yrs ago physicist Paul Dirac predicted there were tiny particles that were uni polar magnets. Because Dirac helped develop the theory of quantum mechanics scientists took his predictions very seriously and immediately tried to discover this uni polar particle. So far none has been found.
What is the smallest particle of the atom?
I'm not exactly sure but it's probably: electrons, neutrons, and protons.The electron is the smallest particle of the atom, in the traditional sense. However, the neutrino is far smaller than the electron, and is thus the smallest particle. You could also argue that the photon, with zero rest mass, is actually the smallest, but that's a quantum mechanics question that seems to be beyond the scope of this question.
Which of the following scientific ideas has NOT had a far-reaching impact on society?
quantum mechanics
Is quantum mechanics valid only for very small particles like atoms only?
Quantum Mechanics is valid for nearly everything (So far) it's just that the effects of it are only seen in microscopic scales like individual particles.
Is string theory the closest theory to a unified field theory?
Yes, so far it is- string theory explains many of the unresolved fundamental problems of our century, such as the opposition between Quantum Mechanics and Einstein's theory of general relativity.
Why do electron contunuouslty move?
If you mean move around in "orbit" around the nucleus ...They don't. In quantum mechanics, forget everything you know from everyday experience about how objects behave, because quantum mechanics is WEIRD. One of my teachers once told me "nobody ever really understands quantum mechanics, they just get used to it." There's a fair amount of truth in that statement. Trying to picture it in your mind will only get you so far; at a certain point you just need to do the math and trust what it says even if it doesn't make any sense.
Who used quantum mechanics to describe the location of the electron?
Max Born was the first to note that the Schroendinger Equation (SE) -- ONE way to approach quantum mechanics -- could be used to accurately predict the PROBABILITY of an electron being at a specific location, given that the electron was in a specific energy field that was well-defined for all locations. For example, the SE for a single electron, in its lowest state around a positive nucleus, shows (after a LOT of math) that the electron is MOST likely at a distance of one Bohr Radius from that nucleus. Born was the first to note that quantum mechanics could never say EXACTLY where the electron was at any one time, but that it could very accurately determine the PROBABILITY that it was at a specified point. Very ironically, Schroendinger himself never really accepted Born's idea. Werner Heisenberg, Max Born, & Pascual Jordan developed an alternate approach to quantum mechanics that used operators and matrix mechanics to give eigenvalues for variables such as position. It was FAR more complicated than the SE, but also has more application. Heisenberg was soon able to show that the SE and the approach he & his colleagues developed were essentially the same.
Should I trust a mechanic hired by Wal-Mart?
Yes, mechanics hired by Walmart are trained in all of the things that they work on as far as cars are concerned. Even though some dont have degrees in the field they are very knowledgeable about the area in which they are working on. Of course! Even when hired by Walmart, mechanics must have training and knowledge in the field of mechanics. Walmart does set a standard on who they hire for specialty jobs such as a mechanic.
What follows the atoms around the orbit?
We need someone who understands the mechanics of subatomic particles better than I, but I don't think atoms normally orbit anything. Perhaps you mean electrons orbiting the nucleus. And again, as far as I remember nothing follows electrons in their orbit. We really need someone for this answer who knows a little quantum mechanics.
Does quantum theory has cheat codes?
As far as i know, no.
What is the significance of zero point energy in quantum mechanics?
AnswerZero-point energy (not to be confused with Vacuum Energy) is the lowest possible energy that a quantum mechanical physical system may have and is the energy of the ground state. This energy comes from the fact that after you remove all thermal and kinetic energy from an atom there is still quantum mechanical harmonic vibration that arises due to the Heisenberg Uncertainty Principle. This energy, so far, can not be taken away from a system.
How much is Quantum of Solace worth?
If you mean as far as budget, Quantum of Solace cost $200 million to make.
What happens when your timing too far advanced?
What happens if you timing is to far advanced on a 1994 dodge spirit
Why are electrons not found in the nucleus?
The protons have a positive charge which repels them. The above is incorrect -- the positive charge of a proton would ATTRACT the negatively charged electrons. However, our Universe permits electrons within the electric field of a nucleus to exist only at specific orbitals in that field. An electron in a specific orbital has only an extremely small probability of being within the nucleus, and a far higher probability of being outside of it. Thus, electrons are outside the nucleus because the rules of our Universe -- those of quantum mechanics -- require that it not spend much time there.
