3 papers
quant-ph2026
How many degrees of freedom describe a quantum N-particle state?
Matthew J. Lake, Marek L. Miller
In Newtonian spacetime, the canonical description of a classical -particle system requires degrees of freedom. Not all of these are physical, however, since the conservatio…
gr-qc2025
The (1+3)-dimensional 'quantum principle of relativity' is Einstein's principle of relativity
Matthew J. Lake
We show that the -dimensional `superboost' operators, proposed in Dragan and Ekert's most recent work on superluminal reference frames \cite{Dragan:2022txt}, are simply the…
gr-qc2025
Towards a group structure for superluminal velocity boosts
Matthew J. Lake
Canonical subluminal Lorentz boosts have a clear geometric interpretation. They can be neatly expressed as hyperbolic rotations, that leave both the family of -sheet hyperboloid…