3 papers
quant-ph2026
Preserving Symmetry: Spontaneous Symmetry Breaking through Decoherence
Sam Kuypers
Solids appear to have localised centres of mass, yet many-body quantum theory describes them using translationally symmetric models that preclude localisation. Conventionally, this…
quant-ph2026
Restoring Locality: The Heisenberg Picture as a Separable Description of Quantum Theory
Sam Kuypers
Local realism has been the subject of much discussion in modern physics, partly because our deepest theories of physics appear to contradict one another in regard to whether realit…
quant-ph2025
Measuring time in a timeless universe
Sam Kuypers, Simone Rijavec
Physical systems are usually assumed to evolve relative to an external time parameter, which is problematic because in quantum theory that parameter is not a physical observable. P…