text: This quantity names a kind of crystal experimentally verified in 2016 in a chain of ytterbium atoms driven by laser pulses.
full_question: This quantity names a kind of crystal experimentally verified in 2016 in a chain of ytterbium atoms driven by laser pulses. In quantum mechanics, this quantity is negated by an antiunitary operator that produces degenerate states according to Kramers theorem. Invariance under changes in this quantity implies energy conservation as per Noether’s Theorem. The RC constant for a circuit has units of this quantity, as does the inverse of the radioactive decay constant. This quantity is the non-spatial dimension in Minkowski space. For 10 points, name this quantity measured in SI units of seconds.
first_sentence: This quantity names a kind of crystal experimentally verified in 2016 in a chain of ytterbium atoms driven by laser pulses.