You are currently offline. Some features of the site may not work correctly.

# Momentum operator

Known as: 4-momentum operator, Four-momentum operator
In quantum mechanics, momentum (like all other physical variables) is defined as an operator, which "acts on" or pre-multiplies the wave function ψ(r… Expand
Wikipedia

## Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2017
2017
• 2017
• Corpus ID: 59462049
We study the behavior of entanglement between different degrees of freedom of scattering fermions, based on an exemplary QED… Expand
Highly Cited
2011
Highly Cited
2011
• 2011
• Corpus ID: 119188634
A translation operator is introduced to describe the quantum dynamics of a position-dependent mass particle in a null or constant… Expand
2010
2010
• 2010
• Corpus ID: 14466162
Within the framework of nonrelativistic QED, we prove that, for small values of the coupling constant, the energy function, {E_… Expand
Review
2008
Review
2008
• 2008
• Corpus ID: 5958556
The basic properties of $\pi$-electrons near the Fermi level in graphene are reviewed from a point of view of the pseudospin and… Expand
Highly Cited
2006
Highly Cited
2006
• 2006
• Corpus ID: 6362702
Ordering ambiguity associated with the von Roos position dependent mass (PDM) Hamiltonian is considered. An affine locally scaled… Expand
Highly Cited
2005
Highly Cited
2005
• 2005
• Corpus ID: 13986937
Existence of a minimal observable length which has been indicated by string theory and quantum gravity, leads to a modification… Expand
2002
2002
• 2002
• Corpus ID: 17236525
We analyse Coleman’s theorem asserting the absence Goldstone bosons and spontaneously broken continuous symmetry in the quantum… Expand
2002
2002
The interrelations between the two definitions of momentum operator, via the canonical energy-momentum tensorial operator and as… Expand
Highly Cited
2000
Highly Cited
2000
• 2000
• Corpus ID: 45625637
The semiclassical Einstein-Langevin equations which describe the dynamics of stochastic perturbations of the metric induced by… Expand
Review
1998
Review
1998
A general pedagogical survey of the basics of the Bethe-Salpeter equation and in particular Wick-Cutkosky model is given in great… Expand