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The Current State of Cluster Formation Simulations

Numerical simulations of star cluster formation have advanced greatly during the past decade, covering increasingly massive gas clouds while accounting for more and more complex physics. In this review, I discuss the present state of the field, paying particular attention to the key physics that need to be included in cluster formation simulations. The main numerical techniques are summarized for a broad audience, before evaluating their application to the problem of cluster formation. A faithful reproduction of the observed characteristics of cluster formation can presently be achieved in numerical simulations. Ideally, this requires turbulent initial conditions to be combined with radiative feedback, protostellar outflows, and magnetic fields. With the exciting prospect in mind that our understanding of cluster formation will soon be revolutionized by facilities like ALMA, JWST, and the EVLA, this review also identifies a number of areas that would particularly benefit from a joint observational and theoretical effort.