(self)
return 0
Can we create a quasi-particle?  (create hole or create particle)
        If so, would that be above or below the fermi surface?

        >>> from sympy import Symbol
        >>> from sympy.physics.secondquant import Fd
        >>> a = Symbol('a', above_fermi=True)
        >>> i = Symbol('i', below_fermi=True)
        >>> p = Symbol('p')

        >>> Fd(a).is_q_creator
        1
        >>> Fd(i).is_q_creator
        0
        >>> Fd(p).is_q_creator
        1
Can we create a quasi-particle?  (create hole or create particle)
        If so, would that be above or below the fermi surface?
Can we create a quasi - particle? ( create hole or create particle ) If so would that be above or below the fermi surface?
def is_q_creator(self):
        """
        Can we create a quasi-particle?  (create hole or create particle)
        If so, would that be above or below the fermi surface?

        >>> from sympy import Symbol
        >>> from sympy.physics.secondquant import Fd
        >>> a = Symbol('a', above_fermi=True)
        >>> i = Symbol('i', below_fermi=True)
        >>> p = Symbol('p')

        >>> Fd(a).is_q_creator
        1
        >>> Fd(i).is_q_creator
        0
        >>> Fd(p).is_q_creator
        1

        """
        if self.is_above_fermi:
            return 1
        return 0
def is_q_creator ( self ) : if self . is_above_fermi : return 1 return 0