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K space refers to a space where things are in terms of momentum and frequency instead of position and time and the way you convert between real space and k-space (or Fourier s…pace) is a mathematical transformation called the Fourier transform (and Inverse Fourier transform). This K-space also exists in classical physics. In quantum mechanics the space is made up of discrete values of K, whereas in classical physics K can take on a continuum of values. (MORE)

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Quantum mechanics is the mathematical description of matter on an atomic and subatomic scale. It is focused around the wavefunction of a system. Wave functions contain all inf…ormation about the system such as: momentum, position, angular momentum, energy, etc. This information can only be known by its respective probability distributions. The basis of quantum mechanics in the wave mechanics formulation is the Schrodinger equation, which has two forms: the time-dependent and the time-independent. Quantum mechanics is a branch of mechanics concerned with mathematical modelling of the interaction and motion of subatomic particles. (MORE)

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It is a Hermitian positive-semidefinite matrix of trace one that describes the statistical state of a quantum system. Hermitian matrix is defined as A=A^(dagger). Meaning th…at NxN matrix A is equal to it's transposed complex conjugate. Trace is defined as adding all the terms on the diagonal. (MORE)

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The significance of QM in chemistry (quantum chemistry) is that it explains, in terms of electron energy levels, the behaviour of the different chemical elements at the quantu…m level, taking into account the wavelike properties of the electrons using Schrodinger equation to calculate those properties. (MORE)

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It's the study of very small particles... so small that quantization becomes a noticeable factor in their behavior. Adding to the answer above you would also see quantum beh…aviour in macroscopic objects if it was not for a phenomena called decoherence - an interaction with the wider environment that wipes out quantum behavior (MORE)

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An operator has a dual meaning in the world of quantum mechanics. The more formal explanation is that an operator is a mathematical operation done to an equation. For example,… the H operator in quantum mechanics simply means, "Whatever is in front of me, multiply by (-h^2/2m)D^2+V(r,t), where D is the gradient. So if you see Hx, you would multiply x by everything that is in H. So H simply represents an equation. In this case, it is the Hamiltonian Operator. A simpler example would be the parity operator, p. The p operator means "multiply everything by -1". So if you have px, you would end up with -x. Remember that in quantum mechanics, operators may be commutative, or they may not. (MORE)

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20c + 5 = 5c + 65 Divide through by 5: 4c + 1 = c + 13 Subtract c from both sides: 3c + 1 = 13 Subtract 1 from both sides: 3c = 12 Divide both sides by 3: c = 4 20c + 5 = 5c …+65 20c - 5c= 65 - 5.
15c = 60.
15c/15 = 60/15.
c = 4 (alternative method). (MORE)

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In Science

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. (MORE)

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Quantum mechanics explains the spectrum of glowing bodies, the photo-electric effect, hydrogen emission lines, electron interference patterns -- and just stuff found prior to …1925. QM effects form the basis of all electronics, including the computer on which you are using to ask this question. (MORE)

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Actually they are the same. It deals with physical phenomena at a microscopic scale, like how electrons can behave and move about. The interaction between particles is very di…fferent on what we do in physical world. (MORE)