4 papers
Uncertainty Relations Relative to Phase-Space Quantum Reference Frames
Miguel Jorquera Riera, Leon Loveridge
We study Heisenberg's uncertainty relation relative to a quantum reference frame (QRF). We introduce the QRF as a covariant phase-space observable, show that when described relativ…
Operational Quantum Reference Frame Transformations
Titouan Carette, Jan GÅowacki, Leon Loveridge
Quantum reference frames are needed in quantum theory for much the same reasons that reference frames are in classical theories: to manifest invariance in line with fundamental rel…
Skew Hecke Algebras
James Waldron, Leon Deryck Loveridge
Let be a finite group, a subgroup, a commutative ring, an -algebra, and an action of on by -algebra automorphisms. We study the associated…
Quantum reference frames, measurement schemes and the type of local algebras in quantum field theory
Christopher J. Fewster, Daan W. Janssen, Leon Deryck Loveridge +2
We develop an operational framework, combining relativistic quantum measurement theory with quantum reference frames (QRFs), in which local measurements of a quantum field on a bac…