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01685aam a22003138i 4500 001 68FA012C83F811ECA43678234CECA4DB 003 SILO 005 20220202011724 008 201217s2021 nyu b 001 0 eng 010 $a 2020056956 020 $a 1108486215 020 $a 9781108486217 035 $a (OCoLC)1225975621 040 $a DLC $b eng $e rda $c DLC $d OCLCO $d OCLCF $d UKMGB $d SILO 042 $a pcc 050 00 $a QC174.45 K58 2021 100 1 $a Kleiss, Ronald, $e author. 245 10 $a Quantum field theory : $b a diagrammatic approach / $c Ronald Kleiss. 263 $a 2103 264 1 $a New York : $b Cambridge University Press, $c 2021. 300 $a 1 volume 504 $a Includes bibliographical references and index. 520 $a "Let us first consider a general Hamiltonian of Z electrons moving around a nucleus that contains the Coulomb interaction, the spin-orbit coupling, and the hyperfine coupling. These are the three effects that determine the electronic structure of an atom. Here we should emphasize the important role of the separation of energy scales; that is to say, the typical energy scales of these three terms are quite different. Thanks to the separation of energy scales, we can analyze them one by one, which enables us to obtain a clear picture of the electron structure"-- $c Provided by publisher. 650 0 $a Quantum field theory. 776 08 $i Online version: $a Kleiss, Ronald, $t Quantum field theory $d New York : Cambridge University Press, 2021. $z 9781108665209 $w (DLC) 2020056957 941 $a 1 952 $l USUX851 $d 20230907011932.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=68FA012C83F811ECA43678234CECA4DB 994 $a C0 $b IWAInitiate Another SILO Locator Search