Dear Developers,<br /><br />I am a Master student in Physics. I would like to ask if with QUANTUM ESPRESSO it is possible to treat the interaction of an atom with the electromagnetic field NOT in the dipole approximation, i.e. using the full vector potential term<b> A</b>(<b>r</b>, t). <br />I hope this is the right email address for the question. <br />Thank you for the attention.<br /><br />Best regards,<br />MM<br /><br /><br /><br />-- <br signature="separator" /><b>=====================================</b><br />Mattia Mantovani <br /><div>Dipartimento di Fisica, Università degli Studi di Milano</div><div>Via Celoria 16, I-20133 Milano</div><div>Tel.: +39 347 555 7462</div><div>Skype: mmantovani91<br /><b>=====================================</b><br /></div>
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