Sub-attosecond time delays of photoemission from asymmetric cores of molecules
We theoretically study the extreme ultraviolet (XUV) photoemission of the asymmetric molecular ion HeH^{2+} beyond the dipole approximation.Based on the double-slit interference of the photoelectron emitted from two atomic cores, we propose a scheme to obtain the XUV photoemission time delays originated from different physical mechanisms.In our stu