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Kinetic samplers fo...
Kinetic samplers for neural quantum states
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- Bagrov, Andrey A. (author)
- Uppsala universitet,Materialteori,Ural Fed Univ, Theoret Phys & Appl Math Dept, Ekaterinburg 620002, Russia.
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- Iliasov, Askar A. (author)
- Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands.;Russian Acad Sci, Space Res Inst, Moscow 117997, Russia.
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- Westerhout, Tom (author)
- Radboud Univ Nijmegen, Inst Mol & Mat, Heyendaalseweg 135, NL-6525 AJ Nijmegen, Netherlands.
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(creator_code:org_t)
- American Physical Society, 2021
- 2021
- English.
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In: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 104:10
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Abstract
Subject headings
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- Neural quantum states are a recently introduced class of variational many-body wave functions that are very flexible in approximating diverse quantum states. Optimization of an NQS ansatz requires sampling from the corresponding probability distribution defined by squared wave function amplitude. For this purpose, we propose to use kinetic sampling protocols and demonstrate that in many important cases such methods lead to much smaller autocorrelation times than the Metropolis-Hastings sampling algorithm while still allowing to easily implement lattice symmetries (unlike autoregressive models). We also use uniform manifold approximation and projection algorithm to construct two-dimensional isometric embedding of Markov chains and show that kinetic sampling helps attain a more homogeneous and ergodic coverage of the Hilbert space basis.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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