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QCD vacuum The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a ''non-perturbative'' vacuum state, characterized by infinitely many non-vanishing condensates such as the gluon condensate or the quark condensate. These condensates characterize the normal phase or the confined phase of quark matter. Another field-theoretic vacuum is the QED vacuum of quantum electrodynamics. ==Symmetries and symmetry breaking==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「QCD vacuum」の詳細全文を読む
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