Nambu-Goldstone-Leggett modes in multi-condensate superconductors
نویسندگان
چکیده
منابع مشابه
Counting rule for Nambu-Goldstone modes in nonrelativistic systems.
The counting rule for Nambu-Goldstone modes is discussed using Mori's projection operator method in nonrelativistic systems at zero and finite temperatures. We show that the number of Nambu-Goldstone modes is equal to the number of broken charges, Q(a), minus half the rank of the expectation value of [Q(a), Q(b)].
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ژورنال
عنوان ژورنال: Novel Superconducting Materials
سال: 2015
ISSN: 2299-3193
DOI: 10.1515/nsm-2015-0010