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That has been a topic of much debate since th1900's. There has been no fully successful tying of the two branches of physics yet but, many proposed theories have made great leaps forward to the answer. For example quantum gravity theory and the string theory, the latter being the more current and relevant.
There are two areas in which the transition from quantum mechanics to classical mechanics is rather obvious: Statistical thermodynamics and wave-particle duality.
Answer2:
Classical and Quantum Mechanics merge in Quaternion Mechanics.
Quaternion Mechanics consists of Quaternion quantities like energy
W = -vh/r + cP where -vh/r is the scalar enrgy and cP=cmV is the vector energy.
Classical and Quantum Mechanics need Quaternion quantities. In general the potential energy -vh/r is a scalar aka a Boson and vector energy cP is a vector aka a Fermion. Bosons/Scalars have integer spin and Fermions/Vectors have 1/2 integer spin.
For the most part like Newtonian Physics use only scalars -mGM/r a scalar and no vectors. Likewise, Quantum mechanics use mostly Fermions or Vectors and few scalars. The speed of light is a scalar as is Planck's Constant h.
Quaternion Mechanics merges Classical and Quantum Physics.
The Laws of Quaternion Mechanics are:
0 = XB = [d/dr, DEL] [B,B] = [dB/dr -DEL.B, dB/dr + DEL B ]
0 = X2B = [(d2/dr2 - DEL2), 2d/dr DEL] [-vh/r,cP]
This Quaternion Wave gives the
scalar/Boson wave -(d2/dr2 - DEL2)vh/r - 2d/dr DEL.cP =0
and the
vector/Fermion particle (d2/dr2 - DEL2)cP + 2d/dr DEL -vh/r =0
In Nature, Quaternions rule and Quaternions combine Bosons and Fermions.
A Quaternion can be a Boson or a Fermion or Both as in
X2W =[ -(d2/dr2 - DEL2)vh/r - 2d/dr DEL.cP,
(d2/dr2 - DEL2)cP + 2d/dr( DEL -vh/r + DELxcP) ]
Quaternions consist of Scalars and Vectors , Bosons and Fermions.
Classical mechanics provides a useful framework for understanding quantum mechanics in limit of large systems. Many quantum concepts, like wave-particle duality and Hamiltonian mechanics, can be connected to their classical counterparts. This allows us to make sense of quantum phenomena by relating them to the familiar concepts of classical physics.
Not sure what you mean by "connected," but a basic principle of quantum mechanics is that its laws must merge with those of classical mechanics if the particle being observed over a certain distance has a momentum significantly larger than the Planck's Constant divided by that distance.
When the system gets big. This is called the correspondence principle.
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Can you use quantum mechanics to predict outcome of a football match?
no
Why classical mechanics fails to explain Compton effect?
Classical mechanics fails to explain the Compton effect because it does not consider the quantum nature of light, which is essential for understanding the phenomenon. The Compton effect involves the collision between a photon and an electron, leading to a change in the wavelength of the photon. To explain this effect, one needs to use quantum theory, specifically quantum electrodynamics, which accounts for the discrete nature of light and matter interactions.
Careers that use quantum mechanics I know this area of physics is more theoretical than anything but are there any?
Some careers that involve the application of quantum mechanics include quantum computing, quantum cryptography, and quantum sensing. These fields explore ways to harness the principles of quantum mechanics for technological advancements in computing, communication, and sensing technologies. Researchers and engineers in these areas work to develop new quantum technologies with potentially transformative impacts on various industries.
What is the Difference between relativity and quantum mechanics?
Relativity is a theory that describes the behavior of large-scale objects, such as planets and galaxies, in terms of gravity and the curvature of spacetime, as formulated by Albert Einstein. Quantum mechanics, on the other hand, is a theory that describes the behavior of subatomic particles, such as electrons and photons, in terms of probabilities and wave functions. The two theories are successful in their respective domains but have not been reconciled into a single theory of everything.
Did Sir Isaac Newton use max planck constant first?
No, Sir Isaac Newton lived before Max Planck and the concept of Planck's constant was developed much later in the early 20th century as part of quantum mechanics. Newton lived in the 17th century and made significant contributions to classical physics, particularly in the fields of optics, mechanics, and mathematics.
What are the branches of physics under classical physics and modern physics?
Classical physics branches include mechanics, thermodynamics, electromagnetism, and optics. Modern physics branches include quantum mechanics, relativity, particle physics, and condensed matter physics.
Is it possible to use Quantum Mechanics to solve problems in the macroscopic world so that the solution approximates to the classical solution when objects are macroscopic?
Yes, but the macroscope reacts to the substance and it can explode
Can you use quantum mechanics to predict outcome of a football match?
no
What jobs use complex numbers?
electrical engineers and quantum mechanics use them.
How do quantum mechanics use complex numbers?
using contraction and expansion
Does the current periodic table make use of quantum mechanics model?
No, it is not necessary.
Why classical mechanics fails to explain Compton effect?
Classical mechanics fails to explain the Compton effect because it does not consider the quantum nature of light, which is essential for understanding the phenomenon. The Compton effect involves the collision between a photon and an electron, leading to a change in the wavelength of the photon. To explain this effect, one needs to use quantum theory, specifically quantum electrodynamics, which accounts for the discrete nature of light and matter interactions.
Careers that use quantum mechanics I know this area of physics is more theoretical than anything but are there any?
Some careers that involve the application of quantum mechanics include quantum computing, quantum cryptography, and quantum sensing. These fields explore ways to harness the principles of quantum mechanics for technological advancements in computing, communication, and sensing technologies. Researchers and engineers in these areas work to develop new quantum technologies with potentially transformative impacts on various industries.
How do you use physicist in a sentence?
The physicist conducted groundbreaking research in the field of quantum mechanics.
How does Schneider's cat work?
Schneider's cat works by quantum theory of superposition, and interpretations of quantum mechanics have been proposed. There for showing you the use of Schneider's cat work.
Why was technology developed?
Experiments in the early 20th century could not be explained by classical physics (developed by Galileo, Newton, etc.). Classical physics worked fine on a larger scale. However, on an extremly small scale it was flawed. Scientist started looking at things on an atomic level. This was the beginning of Quantum mechanics. This science was greatly advanced during WWII, when the military use was realized. Hope this helps some
Defferentiate clasical physics from modern physics?
Classical Physics is the physics which was taught and used before RELATIVITY and QUANTUM MECHANICS were introduced. In Classical physics, masses remain constant when they accelerate and clocks tick in unison wherever they are and at all velocities. But this is not true, especially at very high speeds. Relativity is more accurate and is necessary for the speeds that satellites travel at. Classical mechanics cannot explain the dynamics of sub-atomic particles or how light and other kinds of radiation interact with matter. It is necessary, in explaining the structure of atoms and the nuclear processes, to use Quantum Mechanics which "quantises" energy. For example, if one particle is to pass energy to another particle, it can only be done if an exact amount of energy is available. This amount is a "quantum" and the size of a quantum depends on the wavelength of the radiated energy. Nobody knows why. We understand the laws of Classical Physics - they seem logical. Nobody understands relativity or quantum mechanics. However, the laws are true and so we use them and get the right answers. Why the laws of Modern Physics are with us is beyond our understanding, simply because we are humble three dimensional beings, limited to passage through time in a direction and rate beyond our control. In Modern physics there can be many more dimensions and time may pass at variable rates in different places. That is why we can't understand Modern Physics.
