M e<chr_var letter="s" var="long">∫</chr_var> einz <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr>le m<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>iu<chr_var letter="s" var="long">∫</chr_var>t de<chr_var letter="s" var="long">∫</chr_var> denz. 