0000000000394147

AUTHOR

Francesco Pederiva

0000-0002-7242-0042

showing 2 related works from this author

Sign problem of the fermionic shadow wave function

2014

We present a whole series of methods to alleviate the sign problem of the fermionic shadow wave function in the context of variational Monte Carlo. The effectiveness of our techniques is demonstrated on liquid ^{3}He. We found that although the variance is reduced, the gain in efficiency is restricted by the increased computational cost. Yet, this development not only extends the scope of the fermionic shadow wave function, but also facilitates highly accurate quantum Monte Carlo simulations previously thought not feasible.

PhysicsSeries (mathematics)Quantum Monte CarloShadowProbability and statisticsContext (language use)Statistical physicsVariational Monte CarloWave functionSign (mathematics)Physical Review E
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On the Sign Problem of the Fermionic Shadow Wave Function

2014

We present a whole series of novel methods to alleviate the sign problem of the Fermionic Shadow Wave Function in the context of Variational Monte Carlo. The effectiveness of our new techniques is demonstrated on the example of liquid 3He. We found that although the variance is substantially reduced, the gain in efficiency is restricted by the increased computational cost. Yet, this development not only extends the scope of the Fermionic Shadow Wave Function, but also facilitates highly accurate Quantum Monte Carlo simulations previously thought not feasible.

Condensed Matter - Strongly Correlated ElectronsQuantum PhysicsStatistical Mechanics (cond-mat.stat-mech)Strongly Correlated Electrons (cond-mat.str-el)FOS: Physical sciencesDisordered Systems and Neural Networks (cond-mat.dis-nn)Computational Physics (physics.comp-ph)Condensed Matter - Disordered Systems and Neural NetworksQuantum Physics (quant-ph)Physics - Computational PhysicsCondensed Matter - Statistical Mechanics
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