T ant <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr> il uindr<chr_abbr type="reg" class="dc" expan="ent" cert="no">et-hbar</chr_abbr> uer<chr_var letter="s" var="long">∫</chr_var> lapl<chr_abbr type="reg" class="dc" expan="an" cert="no">a-hbar</chr_abbr>che 