Thermodynamical properties of a mean-field plus pairing model and applications for the Fe nuclei

Abstract

A mean-field plus pairing model for atomic nuclei in the Fe region was studied using a finite-temperature quantum Monte-Carlo method. We present results for thermodynamical quantities such as the internal energy and the specific heat. These results give indications of a phase transition related to the pairing amongst nucleons, around temperatures of 0.7 MeV. The influence of the residual interaction and of the size of the model space on the nuclear level densities is discussed too.

arXiv comment23 pages, including 17 eps figures

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Cited by in corpus (25)

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• A sufficient condition for the absence of the sign problem in the fermionic quantum Monte-Carlo algorithm
• Critical temperature for quenching of pair correlations
• Majorana Positivity and the Fermion sign problem of Quantum Monte Carlo Simulations
• A quantum Monte-Carlo method for fermions, free of discretization errors
• Signature of a Pairing Transition in the Heat Capacity of Finite Nuclei
• Level densities and thermodynamical quantities of heated 93-98Mo isotopes
• Solving the Richardson equations for Fermions
• Loop updates for quantum Monte Carlo simulations in the canonical ensemble
• Quantum Monte Carlo simulation in the canonical ensemble at finite temperature
• Breaking of nucleon Cooper pairs at finite temperature in 93-98Mo
• Pairing and specific heat in hot nuclei
• Heat capacity and pairing transition in nuclei
• Pairing transition of nuclei at finite temperature
• Pairing within the self-consistent quasiparticle random-phase approximation at finite temperature
• Pairing in hot rotating nuclei
• Quenching of pairing gap at finite temperature in 184W
• Thermodynamics of pairing transition in hot nuclei
• Particle-number conservation in static-path approximation for thermal superfluid systems
• Microscopic calculation of symmetry projected nuclear level densities
• Model for pairing phase transition in atomic nuclei
• Pairing correlations and transitions in nuclear systems
• Thermodynamics of pairing transition for Odd-A nuclei
• Level density and thermal properties in rare earth nuclei
• Nuclear pairing at finite temperature and angular momentum