Lattice gauge theories, which originated from particle physics in the context of Quantum
Chromodynamics (QCD), provide an important intellectual stimulus to further develop quantum …

Ketamine is a dissociative anesthetic with an accepted place in human medicine. Ketamine
also has psychedelic properties, and there has been a recent increase in nonmedical use …

Mitragyna speciosa Korth.(“kratom”,“biak”) is a Southeast Asian tree, the leaves of which
provide several alkaloids of considerable interest and seemingly contradictory properties. In …

A general strategy to solve the non-perturbative renormalization problem in lattice QCD,
using finite-size techniques and numerical simulations, is described. As an illustration we …

We discuss a program suite for simulating Quantum Chromodynamics on a 4-dimensional
space–time lattice. The basic Hybrid Monte Carlo algorithm is introduced and a number of …

The gauge covariant lattice Dirac operator D which has recently been proposed by Neuberger
satisfies the Ginsparg-Wilson relation and thus preserves chiral symmetry. The operator …

Near-death experiences (NDEs) can be reproduced by ketamine via blockade of receptors
in the brain for the neurotransmitter glutamate, the N-methyl-D-aspartate (NMDA) receptors. …

We present results of lattice QCD simulations with mass-degenerate up and down and mass-split
strange and charm (N f= 2+ 1+ 1) dynamical quarks using Wilson twisted mass …

We consider O)(a) improvement for two flavor lattice QCD. The improvement term in the action
is computed non-perturbatively for a large range of the bare coupling. The position of the …

In a recent paper [ETMC, P. Boucaud et al., Phys. Lett. B 650 (2007) 304, hep-lat/0701012]
we presented precise lattice QCD results of our European Twisted Mass Collaboration (ETMC…