Cosmological rotation of quantum-mechanical origin and anisotropy of the microwave background

1993 ◽  
Vol 48 (12) ◽  
pp. 5581-5593 ◽  
Author(s):  
L. P. Grishchuk
Keyword(s):  
Quantum Mechanical ◽  
Microwave Background

scholarly journals Quantum Dynamics of Rotational Transitions in CN (X2Σ+) by H+ Collisions

2021 ◽  
Vol 9 ◽  
Author(s):  
Bhargava Anusuri ◽  
T. J. Dhilip Kumar ◽  
Sanjay Kumar
Keyword(s):  
Cross Sections ◽  
Quantum Dynamics ◽  
Energy Surface ◽  
Theoretical Calculations ◽  
Rate Coefficients ◽  
Quantum Mechanical ◽  
Microwave Background ◽  
Close Coupling ◽  
Proton Collisions ◽  
Interstellar Media

Collisional cross-sections of inelastic rotational excitations of CN in its ground electronic state (X2Σ+) by H+ scattering are studied by the exact quantum mechanical close-coupling (CC) method at very low collision energies (0–600 cm−1) relevant to interstellar atmospheres. Ab initio rigid rotor potential energy surface computed at MRCI/cc-pVTZ level of accuracy has been employed. Rate coefficients for the rotational excitations have also been calculated. The obtained results are compared with previous theoretical calculations and analyzed whether proton collisions could be significant sources for rotationally excited CN as a possible source for cosmic microwave background of about 3 K from the interstellar media.

Operators and meaning of wave function

2016 ◽  
pp. 4039-4042
Author(s):  
Viliam Malcher
Keyword(s):  
Wave Function ◽  
Quantum Theory ◽  
State Vector ◽  
The State ◽  
Physical Significance ◽  
Central Problem ◽  
Quantum Mechanical ◽  
Mechanical Description ◽  
Quantum Mechanical Description ◽  
Interpretation Of Quantum Theory

The interpretation problems of quantum theory are considered. In the formalism of quantum theory the possible states of a system are described by a state vector. The state vector, which will be represented as |ψ> in Dirac notation, is the most general form of the quantum mechanical description. The central problem of the interpretation of quantum theory is to explain the physical significance of the |ψ>. In this paper we have shown that one of the best way to make of interpretation of wave function is to take the wave function as an operator.

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