Quantum Mechanics

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Questions related to Quantum Mechanics

What is the energy density within non-relativistic quantum mechanics?

When googling for this topic, I don't get helpful results. In one article I have seen u=Re(psi* H psi). However, i), in stationary cases, the kinetic energy density, psi* T psi, becomes negative...

11 August 2016 7,547 8 View

Could the Higgs boson be an artefact?

I found that in the LHC there can occur some symmetric ordering of protons in the high magnetic field. An interesting formation would be 6-ring+3-ring+1 = 10 protons. When two 10-protons packets...

06 August 2016 1,843 6 View

Is there any published experimental evidence that the photon (radiation) exerts gravitational attraction?

Reference to the equivalence principle is not an answer. Use in the Einstein tensor is not experimental evidence, nor is use in the Friedmann-Robertson-Walker (FRW) model for cosmology. Argument...

17 July 2016 430 55 View

How Real is Wave-Function while Non-Linear Interactions Between the Photons?

The present work is motivated from the recent paper arxiv.org/pdf/1412.6213v2.pdf, which is also presented in the most famous journal "Nature". The main result is derived much simpler way.

13 July 2016 3,572 2 View

Particle without Wave Function?

Many mysteries and set of behaviors are based on particle and wave functions of energy. Here are few questions which might get raised for more deep down understanding and future applications of...

05 July 2016 6,047 21 View

Why there is no aberration of light sources on earth?

The orbital speed v of the planet Earth is about 30km per second to the east. The ratio v/c against the speed of light is 1/10000. As the light propagates independently from it's source there is...

03 July 2016 7,165 8 View

Can 'the collaps of a wavefunction' be understood as a computational breakdown due to Nature's limited computational resources?

Consider an electron entering a grain of salt (NaCl). In a quantum mechanical description of the process the wavefunction of the electron will see more and more ions in its range of influence and...

28 June 2016 4,186 44 View

In Quantum Computing, where is the extra information held?

In Quantum Computing, there is something known as the Holevo bound - which basically says that a q-bit cannot deliver more than a bit of information into our spacetime, although it can carry...

21 June 2016 7,058 12 View

Is this Intrepretation of the wave function possible?

I would like to put to the critic of the RG participants a hypothesis about the nature of the wave function (WF) - more specifically about WF collapse. According to it: the particle is a real...

20 June 2016 7,501 9 View

How DFT with a given functional (here CAM-B3LYP) can reproduce correctly and coherently bond distances in different spin states ?

I have an octahedral iron complex

12 June 2016 9,945 1 View

The "realism" hypothesis in QM. Do we have an experiment that disproves it?

The realism hypothesis in QM says that results of measurements on quantum systems, are completely determined by subquantal parameters (hidden or detectable, local or non-local). These parameters...

12 June 2016 7,135 50 View

What is the mean field theory? how it can help in the study of quantum paraelectric?

i am studying about dielectric measurement at low temperature in quantum paraelectric..

11 June 2016 8,309 1 View

Why don't we have force operators in quantum mechanics?

Since, classically we define force as rate of change of momentum and by weyl rule we can map classical functions to quantum operators. Then, why is it that we don't often hear the word 'force...

09 June 2016 8,645 5 View

What is the meaning of "atomic injection rates and atomic exit rates" in an open atomic system?

can one say about atomic injection rates and atomic exit rates in an open atomic system?

08 June 2016 2,394 1 View

Why thick (25 and 50 nm) Co40Fe40B20 with heavy metal W (without MgO) shows the perpendicular magnetic anisotropy (PMA) and also degraded this PMA ?

Why thick (25 and 50 nm) Co40Fe40B20 with heavy metal W (without MgO) shows the perpendicular magnetic anisotropy (PMA) and also degraded this PMA , when giving the thermal treatment (annealing)...

03 June 2016 5,987 1 View

From where can I get a full description about wave function approach of adiabatic approximation ?

I am working on a project which contains study of storage of different shapes of pulses in three-level lambda system. How can I solve equations involved in adiabatic approximation ?

31 May 2016 4,199 1 View

How to relate Quantum confinement in 0D materials and optical constants mathematical?

The Energy levels in 0D materials become discretized due to Quantum confinement effect and DOS can be represented by delta function. How can we correlate the optical constants like refractive...

24 May 2016 4,851 1 View

How we can quantize the rotation parameter (a=J/Mc) of Kerr metric?

It was suggested many years ago by Jacob Bekenstein that the rotation parameter of a black hole should be quantized as in usual quantum mechanics: J=n * hbar.

17 May 2016 6,448 4 View

How can I calculate the moment of inertia in g09 ?

I use g09 and I got this Principal axes and moments of inertia in atomic units:1 2 3Eigenvalues -- 51.67816 193.73001 219.25348 X 0.99974 0.01454 0.01760 Y...

16 May 2016 2,601 3 View

What happens with two identical fermions, identically polarized, whose paths cross one another?

Imagine two fermion wave-packets of Gaussian form, whose paths cross one another, see figure. The blue circles represent the two wave-packets at different times. At a certain time the wave-packets...

11 May 2016 6,432 84 View

Is the number density of fermions always finite in loop quantum gravity?

In loop quantum gravity the eigenvalues of volume operator are discrete. Is it correct to conclude that , for fermions, the density of particle number is always finite? (according to the Pauli...

01 May 2016 747 2 View

I need some elementary book on dechoherence. Will you Please suggest me some book ?

29 April 2016 9,197 2 View

Were there any differences in the 3 point like components that SLAC found in both protons and neutrons?

In early experiments SLAC found 3 point like components in both the proton and neutron. Thus confirming the quark like structure of the hadrons. A vitally important question ensues: did they find...

27 April 2016 4,206 15 View

Can a black hole be separated as a serie of mini holes?

I wonder if the heavy gravitational pressure and the quantum states to remain could form small black holes targetting repulsive forces between each other. The idea brought out of the inconvenience...

26 April 2016 6,987 4 View

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