Add to ORKGThis paper will be published in the proceeding of XXV Workshop on Geometric Methods in Physics in the Journal of Geometry and Symmetry in PhysicsIn this paper, we study the one-level Friedrichs model with using the quantum time super-operator that predicts the excited state decay inside the continuum. Its survival probability in long time limit is an algebraically decreasing function and an exponentially decreasing multiplied by the oscillating functions
Quantum physics involves an ensemble of quantum systems, usually one thinks of a large ensemble of i...
A time operator $\hat T_\eps$ of the one-dimensional harmonic oscillator $ \hat h_\eps=\half(p^2+\ep...
We address the time decay of the Loschmidt echo, measuring the sensitivity of quantum dynamics to sm...
The vacuum expectation value of the evolution operator for a general class of Hamiltonians used in q...
We discuss differential-- versus integral--equation based methods describing out--of thermal equilib...
We link linear prediction of Chebyshev and Fourier expansions to analytic continuation. We push the ...
We study the time development of correlation functions at both zero and finite temperature with Shib...
AbstractWe establish a representation formula for semigroups of contractions in terms of a global li...
We consider gapless models of statistical mechanics. At zero temperatures correlation functions deca...
The temporal behavior of quantum mechanical systems is reviewed. We mainly focus our attention on th...
Abstract. We consider the problem of determining the probability distribu-tion for the time of decay...
The method developed by Van Dijk, Nogami and Toyama for obtaining the time-evolved wave function of ...
The temporal behavior of quantum mechanical systems is reviewed. We mainly focus our attention on th...
A study is made of the behavior of unstable states in simple models which nevertheless are realistic...
There exists the well known approximate expression describing the large time behaviour of matrix ele...
Quantum physics involves an ensemble of quantum systems, usually one thinks of a large ensemble of i...
A time operator $\hat T_\eps$ of the one-dimensional harmonic oscillator $ \hat h_\eps=\half(p^2+\ep...
We address the time decay of the Loschmidt echo, measuring the sensitivity of quantum dynamics to sm...
The vacuum expectation value of the evolution operator for a general class of Hamiltonians used in q...
We discuss differential-- versus integral--equation based methods describing out--of thermal equilib...
We link linear prediction of Chebyshev and Fourier expansions to analytic continuation. We push the ...
We study the time development of correlation functions at both zero and finite temperature with Shib...
AbstractWe establish a representation formula for semigroups of contractions in terms of a global li...
We consider gapless models of statistical mechanics. At zero temperatures correlation functions deca...
The temporal behavior of quantum mechanical systems is reviewed. We mainly focus our attention on th...
Abstract. We consider the problem of determining the probability distribu-tion for the time of decay...
The method developed by Van Dijk, Nogami and Toyama for obtaining the time-evolved wave function of ...
The temporal behavior of quantum mechanical systems is reviewed. We mainly focus our attention on th...
A study is made of the behavior of unstable states in simple models which nevertheless are realistic...
There exists the well known approximate expression describing the large time behaviour of matrix ele...
Quantum physics involves an ensemble of quantum systems, usually one thinks of a large ensemble of i...
A time operator $\hat T_\eps$ of the one-dimensional harmonic oscillator $ \hat h_\eps=\half(p^2+\ep...
We address the time decay of the Loschmidt echo, measuring the sensitivity of quantum dynamics to sm...