How does isotropy of free space imply $L(v^2)$ for a free particle?
94173
Deriving the Lagrangian for a free particle
118346
Normalizing the solution to free particle Schrödinger equation
155913
Lagrangian for free particle in special relativity
129481
About the term $-\nabla_{[u,v]}w$ in the definition of Riemann curvature tensor
83967
Why is $|\Psi|^2$ the probability density?
61209
Interpretation of the Dirac-measure property
93835
Why do those terms vanish if the metric is Hermitian?
28057
Deriving $p = mv$ from translational symmetry (momentum conservation law)?
105660
Invariance of action $\Rightarrow$ covariance of field equations?
152198
Is it possible for $\Delta x$ ($\sigma_x$) of any free particle wave packet to be decreasing at any time?
125081
What is the reasoning that leads one to postulate this second form for the relativistic particle action?
45559
Why we use $L_2$ Space In QM?
156863
Uncertainty Principle for a Totally Localized Particle
137152
Free particle Schrodinger equation: propagator
66919
When/why does the principle of least action plus boundary conditions not uniquely specify a path?
136184
Why we dont have "direct" velocity operator just as $p$? ( as use $p$ space not $v$? ) in quantum mechanics?
82464
$U^*\otimes V$ versus $L(U,V)$ for infinite dimensional spaces