Mean-field dynamics for the Nelson model with fermions
Leopold NK, Petrat SP. 2019. Mean-field dynamics for the Nelson model with fermions. Annales Henri Poincare. 20(10), 3471–3508.
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Abstract
We consider the Nelson model with ultraviolet cutoff, which describes the interaction between non-relativistic particles and a positive or zero mass quantized scalar field. We take the non-relativistic particles to obey Fermi statistics and discuss the time evolution in a mean-field limit of many fermions. In this case, the limit is known to be also a semiclassical limit. We prove convergence in terms of reduced density matrices of the many-body state to a tensor product of a Slater determinant with semiclassical structure and a coherent state, which evolve according to a fermionic version of the Schrödinger–Klein–Gordon equations.
Publishing Year
Date Published
2019-10-01
Journal Title
Annales Henri Poincare
Publisher
Springer Nature
Acknowledgement
Open access funding provided by Institute of Science and Technology (IST Austria). We would like to thank Peter Pickl and Robert Seiringer for fruitful discussions, and the anonymous referees for their valuable comments and suggestions. Moreover, we would like to thank Niels Benedikter and László Erdős for helpful remarks about the semiclassical structure and the Schrödinger–Klein–Gordon equations. N. L. gratefully acknowledges financial support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 694227) and funding for his stay at Princeton University from the project “Effective One-Particle Equations for Correlated Many-Particle-(Coulomb) Systems: Derivation and Properties” (Project No. 318342445) of the German Research Foundation (DFG). S. P. gratefully acknowledges support from the German Academic Exchange Service (DAAD) and the National Science Foundation under Agreement No. DMS-1128155. Moreover, we would like to thank Princeton University and the Institute for Advanced Study for their hospitality. S. P. would additionally like to thank the University of Washington for hospitality.
Volume
20
Issue
10
Page
3471–3508
ISSN
eISSN
IST-REx-ID
Cite this
Leopold NK, Petrat SP. Mean-field dynamics for the Nelson model with fermions. Annales Henri Poincare. 2019;20(10):3471–3508. doi:10.1007/s00023-019-00828-w
Leopold, N. K., & Petrat, S. P. (2019). Mean-field dynamics for the Nelson model with fermions. Annales Henri Poincare. Springer Nature. https://doi.org/10.1007/s00023-019-00828-w
Leopold, Nikolai K, and Sören P Petrat. “Mean-Field Dynamics for the Nelson Model with Fermions.” Annales Henri Poincare. Springer Nature, 2019. https://doi.org/10.1007/s00023-019-00828-w.
N. K. Leopold and S. P. Petrat, “Mean-field dynamics for the Nelson model with fermions,” Annales Henri Poincare, vol. 20, no. 10. Springer Nature, pp. 3471–3508, 2019.
Leopold NK, Petrat SP. 2019. Mean-field dynamics for the Nelson model with fermions. Annales Henri Poincare. 20(10), 3471–3508.
Leopold, Nikolai K., and Sören P. Petrat. “Mean-Field Dynamics for the Nelson Model with Fermions.” Annales Henri Poincare, vol. 20, no. 10, Springer Nature, 2019, pp. 3471–3508, doi:10.1007/s00023-019-00828-w.
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