Ab initio nuclear thermodynamics from lattice effective field theory

Autor:	Lu, Bing-Nan, Li, Ning, Elhatisari, Serdar, Lee, Dean, Drut, Joaquín E., Lähde, Timo A., Epelbaum, Evgeny, Meißner, Ulf-G.
Rok vydání:	2021
Předmět:	Nuclear Theory Condensed Matter - Statistical Mechanics High Energy Physics - Lattice Nuclear Experiment
Druh dokumentu:	Working Paper
Popis:	We show that the {\it ab initio} calculations of nuclear thermodynamics can be performed efficiently using lattice effective field theory. The simulations use a new approach called the pinhole trace algorithm to calculate thermodynamic observables for a fixed number of protons and neutrons enclosed in a finite box. In this framework, we calculate the equation of state, the liquid-vapor coexistence line and the critical point of neutral symmetric nuclear matter with high precision. Since the algorithm uses a canonical ensemble with a fixed number of particles, it provides a sizable computational advantage over grand canonical ensemble simulations that can be a factor of several thousands to as much as several millions for large volume simulations. Comment: 17 pages, plenary talk at the 38th International Symposium on Lattice Field Theory (Lattice 2021), 26-30 July 2021, Zoom/Gather @ MIT, USA
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2112.01392 Zobrazit plný text záznamu View this record from Arxiv