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Exact BPS kink in BCFT, DBI EFT, NCFT, and BSFT

Title
Exact BPS kink in BCFT, DBI EFT, NCFT, and BSFT
Authors
Kim, ChanjuKim, YoonbaiKouwn, SeyenKwon, O-Kab
Ewha Authors
김찬주
SCOPUS Author ID
김찬주scopus
Issue Date
2007
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN
0374-4884JCR Link
Citation
vol. 50, pp. S95 - S106
Keywords
D-branetachyonkinkBPS
Publisher
KOREAN PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
We discuss single topological BPS kinks with non-zero thickness, which are exact solutions in various contexts including Dirac-Born-Infeld type effective field theory, noncommutative field theory, boundary conformal field theory, and boundary string field theory. The tachyon field is monotonically increasing (or decreasing) and connects the isolated vacua at positive and negative infinity irrespective of the theories of our interest. It is expressed by a simple linear function, tau(X) proportional to X, in the case of boundary conformal field theory. The obtained tachyon kink in the presence of critical electromagnetic field is interpreted as a single thick BPS D (p - 1)-brane (or D (p - 1)F1-composite) inside an unstable Dp-brane with background fluid of fundamental strings.
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자연과학대학 > 물리학전공 > Journal papers
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