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Showing 2014 · hep-thShow all
3 papers · 2 filters
hep-th2014★ 91 cited
Structure of Lefschetz thimbles in simple fermionic systems
Takuya Kanazawa, Yuya Tanizaki
The Picard-Lefschetz theory offers a promising tool to solve the sign problem in QCD and other field theories with complex path-integral weight. In this paper the Lefschetz-thimble…
hep-th2014★ 22 cited
Defect branes as Alice strings
Takashi Okada, Yuho Sakatani
There exist various defect-brane backgrounds in supergravity theories which arise as the low energy limit of string theories. These backgrounds typically have non-trivial monodromi…
hep-th2014★ 16 cited
Quasi-instantons in QCD with chiral symmetry restoration
Takuya Kanazawa, Naoki Yamamoto
We show, without using semiclassical approximations, that, in high-temperature QCD with chiral symmetry restoration and U(1) axial symmetry breaking, the partition function for suf…