scholarly journals Time evolution of unstable particle decay seen with finite resolution

1998 ◽  
Vol 58 (4) ◽  
Author(s):  
I. Joichi ◽  
Sh. Matsumoto ◽  
M. Yoshimura
Keyword(s):  
Time Evolution ◽  
Unstable Particle ◽  
Particle Decay ◽  
Finite Resolution

Time dependence of unstable-particle decay

1966 ◽  
Vol 40 (1) ◽  
pp. 46-53 ◽  
Author(s):  
W.R. Frazer ◽  
S. Peyton
Keyword(s):  
Time Dependence ◽  
Unstable Particle ◽  
Particle Decay

Angular Correlation Effects in Unstable Particle Decay

1955 ◽  
Vol 97 (1) ◽  
pp. 244-245 ◽  
Author(s):  
S. B. Treiman ◽  
Geo. T. Reynolds ◽  
A. L. Hodson
Keyword(s):  
Angular Correlation ◽  
Unstable Particle ◽  
Correlation Effects ◽  
Particle Decay

scholarly journals Dynamics of algebras in quantum unstable systems

2018 ◽  
Vol 33 (18n19) ◽  
pp. 1850109 ◽  
Author(s):  
Marcelo Losada ◽  
Sebastian Fortin ◽  
Manuel Gadella ◽  
Federico Holik
Keyword(s):  
Hilbert Space ◽  
Time Evolution ◽  
Physical Process ◽  
Evolution Operator ◽  
Photon Emission ◽  
Dynamical Evolution ◽  
Abelian Algebra ◽  
Rigged Hilbert Space ◽  
Particle Decay ◽  
Quantum Observables

We introduce a dynamical evolution operator for dealing with unstable physical process, such as scattering resonances, photon emission, decoherence and particle decay. With that aim, we use the formalism of rigged Hilbert space and represent the time evolution of quantum observables in the Heisenberg picture, in such a way that time evolution is nonunitary. This allows to describe observables that are initially noncommutative, but become commutative after time evolution. In other words, a non-abelian algebra of relevant observables becomes abelian when times goes to infinity. We finally present some relevant examples.

A COMPARISON BETWEEN ZIRCON-RUTILE THERMOMETRY OF ECLOGITES: IMPLICATIONS FOR TEMPERATURE-TIME EVOLUTION OF THE NORTH QAIDAM UHP TERRANE, CHINA

2017 ◽  
Author(s):  
David Hernández-Uribe ◽  
◽  
Chris G. Mattinson ◽  
Owen K. Neill ◽  
Andrew Kylander-Clark ◽  
...  
Keyword(s):  
Time Evolution ◽  
The North ◽  
North Qaidam ◽  
Temperature Time

Historical Background

2018 ◽  
Author(s):  
Klaus Morawetz
Keyword(s):  
Steady State ◽  
Kinetic Theory ◽  
Time Evolution ◽  
Historical Development ◽  
Historical Background ◽  
Quantum Kinetic Theory ◽  
Dense Gases ◽  
Nonequilibrium Phenomena ◽  
Quantum Liquids ◽  
Nonlocal Quantum

The historical development of kinetic theory is reviewed with respect to the inclusion of virial corrections. Here the theory of dense gases differs from quantum liquids. While the first one leads to Enskog-type of corrections to the kinetic theory, the latter ones are described by quasiparticle concepts of Landau-type theories. A unifying kinetic theory is envisaged by the nonlocal quantum kinetic theory. Nonequilibrium phenomena are the essential processes which occur in nature. Any evolution is built up of involved causal networks which may render a new state of quality in the course of time evolution. The steady state or equilibrium is rather the exception in nature, if not a theoretical abstraction at all.

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