How is mass accounted for when a particle is in a superposition?
112366
Is mass an observable in Quantum Mechanics?
51589
Can virtual particle have mass?
152110
How does $p\cdot u$ relate to observed energy and momentum for a massive particle?
1721
How to explain the force applied on this object?
9071
How is a quantum superposition different from a mixed state?
28057
Deriving $p = mv$ from translational symmetry (momentum conservation law)?
126865
How can we know if a pair of particles are entangled?
80719
What defines the mass of elementary particle?
70891
Work done by a homogeneous gravitational field on a system of particles
87598
Can we define the effective mass or the moving mass of a photon?
41469
How is quantum superposition different from mixed state?
84440
Is (rest) mass quantized?
12645
The position of center of mass of electron cloud in an atom
156863
Uncertainty Principle for a Totally Localized Particle
117958
Confusions relating mass defect
153690
is there any uncertainty on the free particle with a definite momentum $\vec p$?
41407
How to derive or justify the expressions of momentum operator and energy operator?