Quantum Localisation Observables and Accelerated Frames
, 1998 We define quantum observables associated with Einstein localisation in space-time. These observables are built on Poincare' and dilatation generators. Their commutators are given by spin observables defined from the same symmetry generators. Their shifts
Jaekel, Marc-Thierry, Reynaud, Serge
core +1 more source
Spin treacle in a frustrated magnet observed with spin current [PDF]
Physical Review B, 2020 8 pages, 9 ...
Hiroki Taniguchi +10 more
openaire +2 more sources
Experimental test of an entropic measurement uncertainty relation for arbitrary qubit observables
, 2019 A tight information-theoretic measurement uncertainty relation is experimentally tested with neutron spin-1/2 qubits. The noise associated to the measurement of an observable is defined via conditional Shannon entropies and a tradeoff relation between ...
Abbott, Alastair A. +4 more
core +3 more sources
A project to measure quantum spin correlations of relativistic electron pairs in Møller scattering
EPJ Web of Conferences, 2017 A project to measure quantum spin correlations for relativistic particles with mass is presented. It aims at testing spin observables in relativistic quantum mechanics.
Ciborowski Jacek +7 more
doaj +1 more source
Scattering in black hole backgrounds and higher-spin amplitudes. Part I
Journal of High Energy Physics, 2023 The scattering of massless waves of helicity ∣ h ∣ = 0 , 1 2 , 1 $$ \mid h\mid =0,\frac{1}{2},1 $$ in Schwarzschild and Kerr backgrounds is revisited in the long-wavelength regime.
Yilber Fabian Bautista +3 more
doaj +1 more source
Spin observables and the determination of the parity of $\Theta^+$ in photoproduction reactions
, 2004 Spin observables in the photoproduction of the $\Theta^+$ are explored for the purpose of determining the parity of the $\Theta^+$. Based on reflection symmetry in the scattering plane, we show that certain spin observables in the photoproduction of the $
A. E. Asratyan +6 more
core +1 more source
The Lueders Postulate and the Distinguishability of Observables [PDF]
, 2007 The Lueders postulate is reviewed and implications for the distinguishability of observables are discussed. As an example the distinguishability of two similar observables for spin-1/2 particles is described.
BERNHARD K. MEISTER +2 more
core +2 more sources
Generalizations of Heisenberg uncertainty relation [PDF]
, 2001 A survey on the generalizations of Heisenberg uncertainty relation and a general scheme for their entangled extensions to several states and observables is presented.
Trifonov, D. A.
core +2 more sources
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Mass as a Relativistic Quantum Observable
, 1997 A field state containing photons propagating in different directions has a non vanishing mass which is a quantum observable. We interpret the shift of this mass under transformations to accelerated frames as defining space-time observables canonically ...
Barnett S. M. +20 more
core +1 more source