Fig. 1. Spiderlike momentum spectra of hydrogen atom. (a) Spiderlike interference structure of hydrogen atom simulated by TDSE; (b) spiderlike interference structure of hydrogen atom simulated by SRM; (c) cos(Δθ) curves extracted from cut-plot curves taken at -0.53 a.u. indicated by dashed lines in Figs. 1(a) and (b)

Fig. 2. Spiderlike interference structures of hydrogen atom simulated by SRM. (a) α=0; (b) α=π/10; (c) α=π/5; (d) α=3π/10; (e) cos(Δθ) curves extracted from cut-plot curves taken at -0.53 a.u. indicated by dashed lines in Figs. 2(a)--(d)

Fig. 3. Time difference obtained by different methods. (t_c-t0ref) obtained respectively by (a) saddle-point equation and (b) SRM versus final momentum; (c) Δ(t_c-t0ref); (d) Δ12py2(tc-t0ref)

Fig. 4. α obtained by different methods. α obtained respectively by (a) Eq. (15) and (b) Eq. (9) versus final momentum; (c) Δα

Fig. 5. Momentum distributions. Modified spiderlike structures simulated by SRM when (a) α=a₀+a_xp_x+a_yp_y and (b) α=b₀+b₁arctan(b₂p_y/p_x); phase factor cos(Δθ) versus p_y extracted from Fig.5(a) at (c) p_x=-0.83 a.u. and (e) p_x=-0.50 a.u, respectively; phase factor cos(Δθ) versus p_y extracted from Fig.5(b) at (d) p_x=-0.83 a.u. and (f) p_x=-0.50 a.u, respectively