Results 1 to 10 of about 25,187 (163)
Limitations of field-theory simulation for exploring phase separation: The role of repulsion in a lattice protein model [PDF]
Journal of Chemical Physics, 2022 Field-theory simulation by the complex Langevin method offers an alternative to conventional sampling techniques for exploring the forces driving biomolecular liquid–liquid phase separation. Such simulations have recently been used to study several polyampholyte systems.
Daniel Nilsson +2 more
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Monte Carlo simulation of a lattice field theory as correlated percolation
Nuclear Physics B, 1988 Abstract The recently proposed formulation of lattice field theory as a percolation process is tested numerically in the O(3) σ-model. Its spins decompose into fluctuating clusters similar to Fisher droplets which are rotated as a whole. The autocorrelation time of the algorithm is reduced by a factor ∼2 only. The information residing in the clusters
Ulli Wolff
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Journal of High Energy Physics, 2020 Gauge theory is the framework of the Standard Model of particle physics and is also important in condensed matter physics. As its major non-perturbative approach, lattice gauge theory is traditionally implemented using Monte Carlo simulation ...
Xiaopeng Cui, Yu Shi, Ji-Chong Yang
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Lattice Effective Field Theory Simulations of Nuclei
Annual Review of Nuclear and Particle ScienceLattice effective field theory applies the principles of effective field theory in a lattice framework where space and time are discretized. Nucleons are placed on the lattice sites, and the interactions are tuned to replicate the observed features of the nuclear force. Monte Carlo simulations are then employed to predict the properties of nuclear few-
Dean Lee
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More about the Grassmann tensor renormalization group
Journal of High Energy Physics, 2021 We derive a general formula of the tensor network representation for d-dimensional lattice fermions with ultra-local interactions, including Wilson fermions, staggered fermions, and domain-wall fermions.
Shinichiro Akiyama, Daisuke Kadoh
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Stochastic computation of g − 2 in QED
Journal of High Energy Physics, 2021 We perform a numerical computation of the anomalous magnetic moment (g − 2) of the electron in QED by using the stochastic perturbation theory. Formulating QED on the lattice, we develop a method to calculate the coefficients of the perturbative series ...
Ryuichiro Kitano +2 more
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Lattice field theory simulations of graphene [PDF]
Physical Review B, 2009 We discuss the Monte Carlo method of simulating lattice field theories as a means of studying the low-energy effective theory of graphene. We also report on simulational results obtained using the Metropolis and Hybrid Monte Carlo methods for the chiral condensate, which is the order parameter for the semimetal-insulator transition in graphene, induced
Drut, Joaquín E., Lähde, Timo A.
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Optimisation of complex integration contours at higher order
Journal of High Energy Physics, 2021 We continue our study of contour deformation as a practical tool for dealing with the sign problem using the d-dimensional Bose gas with non-zero chemical potential as a toy model.
Francis Bursa, Michael Kroyter
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Nuclear lattice simulations with chiral effective field theory [PDF]
Physical Review C, 2004 41 pages, 23 ...
Lee, Dean +2 more
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Scattering of Goldstone bosons and resonance production in a composite Higgs model on the lattice
Journal of High Energy Physics, 2021 We calculate the coupling between a vector resonance and two Goldstone bosons in SU(2) gauge theory with N f = 2 Dirac fermions in the fundamental representation. The considered theory can be used to construct a minimal Composite Higgs models.
Vincent Drach +3 more
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