From the 1 of 6k papers with an AI index.
- Centre National de la Recherche ScientifiqueFR1.8k papers
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- University of Science and Technology of ChinaCN1.4k papers
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23 papers · 1 filter
Projection Postulate and Atomic Quantum Zeno Effect
Almut Beige, Gerhard C. Hegerfeldt
The projection postulate has been used to predict a slow-down of the time evolution of the state of a system under rapidly repeated measurements, and ultimately a freezing of the s…
Conditional Hamiltonian and Reset Operator in the Quantum Jump Approach
Gerhard C. Hegerfeldt, Dirk G. Sondermann
For the time development of a single system in the quantum jump approach or for quantum trajectories one requires the conditional (reduced) Hamiltonian between jumps and the reset…
Integrable Discretizations of Chiral Models
A. Dimakis, F. Mueller-Hoissen
A construction of conservation laws for chiral models (generalized sigma-models on a two-dimensional space-time continuum using differential forms is extended in such a way that it…
Mesonic Contribution to the Compton Scattering Amplitude for Heavy Nuclei
M. -Th. Huett, A. I. Milstein
The contribution of mesonic exchange currents to nuclear Compton scattering is investigated within the framework of a Fermi gas model of nuclear matter in the non-relativistic limi…
NIR imaging and modeling of the core of M100
J. H. Knapen, R. F. Peletier, I. Shlosman +3
High-resolution NIR and optical images are used to constrain a dynamical model of the circumnuclear star forming (SF) region in the barred galaxy M100 (=NGC 4321). Subarcsecond res…
Umbral Calculus, Discretization, and Quantum Mechanics on a Lattice
A. Dimakis, F. Mueller-Hoissen, T. Striker
`Umbral calculus' deals with representations of the canonical commutation relations. We present a short exposition of it and discuss how this calculus can be used to discretize con…