def __init__(self, H, elec, pivot):
""" Create Green function with Hamiltonian and BTD matrix elements """
self.H = H
# Store electrodes (for easy retrieval of the SE)
# There may be no electrodes
self.elec = elec
self.pvt = pivot.pivot()
self.btd = pivot.btd()
# Create BTD indices
self.btd_cum = np.cumsum(self.btd)
cumbtd = np.append(0, self.btd_cum)
self.btd_idx = [self.pvt[cumbtd[i]:cumbtd[i + 1]]
for i in range(len(self.btd))]
self._data = PropertyDict()
def reset(self):
self._data = PropertyDict()