Class: Gate

Inherits:
Matrix show all
Defined in:
lib/quantum_ruby.rb

Instance Method Summary collapse

Methods inherited from Matrix

#kronecker

Instance Method Details

#*(*args, scale: nil) ⇒ Object

can take gate, qubit, or state



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# File 'lib/quantum_ruby.rb', line 258

def *(*args, scale: nil)
  if scale
    arg = begin
            args[0].vector
          rescue StandardError
            args[0]
          end
    diff = (arg.row_count / row_count)
    if diff > 1
      return case scale
             when :down
               Gate[*kronecker(Matrix.identity(diff))].*(*args)
             when :up
               Gate[*Matrix.identity(diff).kronecker(self)].*(*args)
             end
    end
  end

  case args[0]
  when State, Qubit
    qubits = []
    args = args.map do |i|
      qubits << (i.is_a?(Qubit) ? i : i.qubits)
      i.vector
    end.reduce(:kronecker)
    State.new(super(args), qubits)
  else
    super(*args)
  end
end