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Anatomy of a strong residual sign problem on the thimbles

Bloch, Jacques (2018) Anatomy of a strong residual sign problem on the thimbles. Physical Review D 98 (11), 114502-1-114502-9.

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Date of publication of this fulltext: 14 Feb 2019 10:44

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Other URL: http://doi.org/10.1103/PhysRevD.98.114502


Using a simple Gaussian-like Ansatz for the phase distribution of a theory with a complex action, we show how the thimble integration for the average phase factor can be plagued by a strong residual sign problem when the phase of the complex integration measure conspires with the constant phase of the integrand along the thimble. This strong sign problem prohibits the accurate computation of the ...


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Item type:Article
Date:6 December 2018
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Tilo Wettig
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Dewey Decimal Classification:500 Science > 530 Physics
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38343
Owner only: item control page


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