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001037677 1001_ $$0P:(DE-Juel1)165594$$aGäntgen, Christoph$$b0$$eCorresponding author$$ufzj
001037677 1112_ $$aThe 40th International Symposium on Lattice Field Theory$$cFermi National Accelerator Laboratory$$d2023-07-31 - 2024-08-04$$wUSA
001037677 245__ $$aReducing the Sign Problem with simple Contour Deformation
001037677 260__ $$aTrieste, Italy$$bSissa Medialab Trieste$$c2024
001037677 300__ $$a9p.
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001037677 4900_ $$aProceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023)
001037677 520__ $$aWe apply constant imaginary offsets to the path integral for a reduction of the sign problem in theHubbard model. These simple transformations enhance the quality of results from HMCcalculations without compromising the speed of the algorithm. This method enables us to efficientlycalculate systems that are otherwise inaccessible due to a severe sign problem. To support this claim,we present observables of the C20 and C60 fullerenes. Furthermore, we demonstrate that at a certainoffset, the sign problem is completely lifted in the limit of large chemical potential.
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001037677 7001_ $$0P:(DE-Juel1)188583$$aBerkowitz, Evan$$b1$$ufzj
001037677 7001_ $$0P:(DE-Juel1)159481$$aLuu, Tom$$b2$$ufzj
001037677 7001_ $$0P:(DE-HGF)0$$aOstmeyer, Johann$$b3
001037677 7001_ $$0P:(DE-Juel1)185942$$aRodekamp, Marcel$$b4$$ufzj
001037677 773__ $$a10.22323/1.453.0007
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001037677 9201_ $$0I:(DE-Juel1)JSC-20090406$$kJSC$$lJülich Supercomputing Center$$x0
001037677 9201_ $$0I:(DE-Juel1)IAS-4-20090406$$kIAS-4$$lTheorie der Starken Wechselwirkung$$x1
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