Explore tweets tagged as #signproblem
What is the computational complexity of easing the #signproblem of #quantum Monte Carlo? The answer is here (it took us three years to come up with this).
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Happy to see our analysis of the easing the Monte Carlo #signproblem - developing both a systematic, generally applicable, and practically feasible methodology for easing the sign problem and a complexity-theoretic analysis going to press in the @ScienceAdvances.
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Research on #latticeQCD and the #signproblem connects scientists from all around the globe 🇩🇪🇧🇷🇩🇰🇳🇴🇦🇹🇮🇳. Tasting some of the regional Rhine River region dishes with colleagues at #Lattice2022 in #Bonn.
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Our PhD student Daniel Alvestad is in Israel this week for #SIGN22, the 8th Intl. Workshop on the #SignProblem @TelAvivUni. In his talk he presented his latest research on novel simulation strategies for quantum systems which defy standard simulation strategies. @forskningsradet
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We share with our friends @Bennijaeger1 @felixpgziegler & Felipe Attanasio from @NATsdu @SyddanskUni a passion for fighting the #signproblem with complex Langevin. Great to see their progress on QCD at finite density at #Lattice2021, our focus otoh is real-time. @forskningsradet
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Next up Neil Warrington @UW (Institute for Nuclear Theory) tells us about path integrals for #Qubits (continuous spheres!) and the use of contour deformations to tackle the associated #signproblem. Interesting to see how path integrals for finite number of d.o.f. behaves.
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You can run, you can hide but the #signproblem will still haunt you in Euclidean #latticeQCD. One interesting manifestation in Michael Wagman's (@Fermilab) talk: signal/noise problem in nucleon correlation functions interpreted as sign problem. Contour deformations to tackle it.
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A real pleasure to give an in-person seminar @uctphysics @UCT_news on recent progress of my group @UiSIMF "towards robust real-time dynamics with complex langevin". Novel strategies to incorporate system specific knowledge in simulations to beat the #signproblem. @forskningsradet
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Excited to see so many colleagues attend the 2023 @UniStavanger - @UniHeidelberg #lattice seminar series today. Started with flash talks from group members: news on taming the #signproblem for fermions & real-time sims using complex Langevin & novel strategies. @forskningsradet
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2nd day of @EctTrento #ML & #lattice #fieldtheory workshop kicks off with a talk by Yukari Yamauchi @UW (Institute for Nuclear Theory) on a complex generalization of #normalizingflows. Converting a #signproblem laden complex distribution into a real Gaussian. #womeninphysics
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First up Gurtej Kanwar @unibern @MIT on using #machinelearning to attack the signal to noise challenge in #latticeQCD. Actually a manifestation of the ubiquitous #signproblem and thus amenable to integration contour deformations here constructed systematically via ML.
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Our @uisimf @unistavanger postdoc R. Larsen presents his recent idea to tame the #signproblem w/ line integrals at 2023 #NordicLattice meeting. Separating integration over oscillatory integrals from sampling & treating it with high precision integrator is key. @forskningsradet
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Great to be back in Bern🇨🇭at the Albert Einstein Center for the 2025 "Workshop on the #SignProblem in QCD and beyond". 👉 Latest news on from-line research on one of the toughest problems in modern theoretical physics spanning condensed matter to nuclear.
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Pleasure to present our research on #machinelearning assisted #ComplexLangevin simulations of #quantum real-time dynamics at the @uisimf @unistavanger #NordicLattice meeting. With #ML: incorporate system specific prior info in sims. to beat NP-hard #signproblem. @forskningsradet
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Think positive ako ng think positive yan tuloy nakalimutan ko yung negative. Huhuhu. #signproblem.
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