Spin

b = SpinBasis(3//2)psi = spinup(b)sx = sigmax(b)

Spin systems of arbitrary spin number can be modeled with the SpinBasis which is defined as:

struct SpinBasis <: Basis    shape::Vector{Int}    spinnumber::Rational{Int}end

States

The lowest and uppermost states are defined:

• spinup
• spindown

Operators

All expected operators are implemented, all of which require a single argument of the type SpinBasis.

• sigmax
• sigmay
• sigmaz
• sigmap
• sigmam

Examples

• Jaynes-Cummings model
• Entanglement of Two Qubits