iqm.qaoa.tree_calculation.tree_calculation

The main module for the tree angle calculation.

Functions

a24_a25(a_m, a_minus_m, b_m_minus_1, ...)	Calculates the term surrounded in the big parentheses in equations A24 and A25.
big_g(a_t, beta_t)	Calculates the function \(G(a_t)\) from equations (A45) and (A46) from [].
big_g_tilde(a_t, beta_t)	Calculates the function \(\tilde{G}(a_t)\) from equations (A47) and (A48) from [].
exp_gamma(big_d, h, big_gamma_pruned, a, b)	Calculates the complex exponential in the 2nd half of (A23).
get_big_h_fixed_points_from_scratch(p, ...)	Recursively implements equations (A23), (A24) and (A25) to obtain the fixed points of the calculation.
get_exp_vals(p, big_d, h, big_gamma, big_beta)	Calculates the expectation values of <Z> and <ZZ> terms.
get_f(p, a, big_beta)	Represents the function \(f(\mathbb{a})\) defined in (9) and (10) in [7].
pair(ai, aj, beta_i)	Represents the equation (A12) in [7].
prune_angles(layer, big_gamma, big_beta)	The function to take the full array of Gamma / Beta angles and shorten them to those relevant for layer layer.
small_g(m_minus_1, b, big_beta)	Represents the function \(g(b^{(m-1)})\) defined in (A26) in [7].