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   Articles with "unitary evolution" as a keyword



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Non-unitary evolution of neutrinos in matter and the leptonic unitarity test

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recommendations! Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep02(2019)015

Abstract: A bstractWe present a comprehensive study of the three-active plus N sterile neutrino model as a framework for constraining leptonic unitarity violation induced at energy scales much lower than the electroweak scale. We formulate a… read more here.

Keywords: order; non unitary; leptonic unitarity; unitary evolution ... See more keywords
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Self-averaging of random quantum dynamics

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recommendations! Published in 2018 at "Physical Review A"

DOI: 10.1103/physreva.98.022111

Abstract: Stochastic dynamics of a quantum system driven by $N$ statistically independent random sudden quenches in a fixed time interval is studied. We reveal that with growing $N$ the system approaches a deterministic limit indicating self-averaging… read more here.

Keywords: quantum; random quantum; self averaging; unitary evolution ... See more keywords
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Unitary evolution with fluctuations and dissipation

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recommendations! Published in 2019 at "Physical Review C"

DOI: 10.1103/physrevc.100.014615

Abstract: We outline an extension of the classical Langevin equation to a quantum formulation of the treatment of dissipation and fluctuations of all collective degrees of freedom with unitary evolution of a many-fermion system within an… read more here.

Keywords: evolution; unitary evolution; evolution fluctuations; fluctuations dissipation ... See more keywords
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Specifying the Unitary Evolution of a Qudit for a General Nonstationary Hamiltonian via the Generalized Gell-Mann Representation

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recommendations! Published in 2020 at "Entropy"

DOI: 10.3390/e22050521

Abstract: Optimal realizations of quantum technology tasks lead to the necessity of a detailed analytical study of the behavior of a d-level quantum system (qudit) under a time-dependent Hamiltonian. In the present article, we introduce a… read more here.

Keywords: evolution qudit; evolution; unitary evolution; time dependent ... See more keywords