A protection conjecture about this quantity means that curves named for it could not be drawn on a Tipler cylinder unless it had negative energy.
A protection conjecture about this quantity means that curves named for it could not be drawn on a Tipler cylinder unless it had negative energy. To prove a certain theorem, one can note that applying an operator partly named for this quantity will yield a distinct eigenstate of the same energy if the system has half-integer spin. When the symmetry of this quantity is conserved, Kramers' theorem applies. Mandelshtam and Tamm proposed an alternative to Heisenberg's principle relating the uncertainties in energy and this quantity. Events which violate the symmetry of this quantity also violate CP-symmetry. Observers in a moving reference frame measure gamma times less of this quantity than had they been still. For 10 points, identify this quantity whose namesake dilation occurs at near-light speeds.
A protection conjecture about this quantity means that curves named for it could not be drawn on a Tipler cylinder unless it had negative energy.
time [accept answers containing the word time, like time reversal or time dilation, prompt on T]