Time reversal symmetry and T^2 = -1
140576
Time reversal symmetry and T^2 = -1
123776
Questions about the Fermi-Dirac distribution at $T=0.$
28946
Derivation of Spin Lagrangian
116427
$(c^{\mu}\partial_{\mu}-m)\phi(x)=0$ not Lorentz-invariant?
107390
Why is (-1)(-1) = 1?
21127
Interval preserving transformations are linear in special relativity
38482
What is $\Delta t$ in the time-energy uncertainty principle?
101786
Proving the Lorentz invariance of the Lorentz invariant phase space element
91756
Degeneracy in one dimension
93336
Understanding time crystals
44016
Proof that the One-Dimensional Simple Harmonic Oscillator is Non-Degenerate?
153205
Why is the $(\frac{1}{2},\frac{1}{2})$ representation of the Lorentz group realized as the vector space of Hermitian $2\times 2$ matrices?
82697
Does SR treat time and space symmetrically? Then why does $t$ dilate while $\ell$ contracts?
154508
The energy method for $u_{tt}-du_t-u_{xx}=0, (0,1)\times(0,T) $
10209
How to show the spacetime interval is invariant in general?
108062
How can we prove charge invariance under Lorentz Transformation?
108384
Special Relativity and $E = mc^2$