Guiding Center 4d Deeply Trapped with Gauss-Legendre VPRK Methods and Projections

The time step and number of time steps are those of this orbit, set in src/guiding-center-4d.jl; the toroidal momentum is shown alongside the energy, as the second invariant of the guiding centre dynamics.

VPRKGauss(1)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(1) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(1) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(1) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(1) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(1) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.

VPRKGauss(2)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(2) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(2) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(2) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(2) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(2) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.

VPRKGauss(3)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(3) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(3) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(3) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(3) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(3) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.

VPRKGauss(4)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(4) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(4) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(4) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(4) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(4) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.

VPRKGauss(5)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(5) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(5) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(5) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(5) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(5) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.

VPRKGauss(6)

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Guiding Center 4d Deeply Trapped

SymplecticGauss(6) with standard projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(6) with symmetric projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(6) with symplectic projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(6) with midpoint projection

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Guiding Center 4d Deeply Trapped

SymplecticGauss(6) with internal stage projection

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Simulation crashed after 0 of 12500 time steps: MethodError.