Decay Estimates of Gradient of a Generalized Oseen Evolution Operator Arising from Time-Dependent Rigid Motions in Exterior Domains
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DOI: 10.1007/s00205-020-01541-3
Abstract: Let us consider the motion of a viscous incompressible fluid past a rotating rigid body in three dimensions, where the translational and angular velocities of the body are prescribed but time-dependent. In a reference frame… read more here.
Keywords: evolution; time; decay estimates; exterior domains ... See more keywords
Analog of Hamilton-Jacobi theory for the time-evolution operator
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DOI: 10.1103/physreva.100.012132
Abstract: In this paper we develop an analogue of Hamilton-Jacobi theory for the time-evolution operator of a quantum many-particle system. The theory offers a useful approach to develop approximations to the time-evolution operator, and also provides… read more here.
Keywords: theory; time evolution; evolution operator;
Invariant-Parameterized Exact Evolution Operator for SU(2) Systems with Time-Dependent Hamiltonian
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DOI: 10.3390/e25010096
Abstract: We report the step-by-step construction of the exact, closed and explicit expression for the evolution operator U(t) of a localized and isolated qubit in an arbitrary time-dependent field, which for concreteness we assume to be… read more here.
Keywords: invariant parameterized; time; evolution operator; time dependent ... See more keywords