Abstract
We revisit the derivation of the time-dependent Hartree–Fock equation for interacting fermions in a regime coupling a mean-field and a semiclassical scaling, contributing two comments to the result obtained in 2014 by Benedikter, Porta, and Schlein. First, the derivation holds in arbitrary space dimension. Second, by using an explicit formula for the unitary implementation of particle-hole transformations, we cast the proof in a form similar to the coherent state method of Rodnianski and Schlein for bosons.
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References
Bach, V., Breteaux, S., Petrat, S., Pickl, P., Tzaneteas, T.: Kinetic energy estimates for the accuracy of the time-dependent Hartree-Fock approximation with Coulomb interaction. J. Math. Pures Appl. 105(1), 1–30 (2016)
Bardos, C., Golse, F., Gottlieb, A.D., Mauser, N.J.: Mean field dynamics of fermions and the time-dependent Hartree–Fock equation. J. Math. Pures Appl. 82(6), 665–683 (2003)
Bardos, C., Golse, F., Gottlieb, A.D., Mauser, N.J.: Accuracy of the time-dependent Hartree–Fock approximation for uncorrelated initial states. J. Stat. Phys. 115(3/4), 1037–1055 (2004)
Benedikter, N.: Bosonic collective excitations in Fermi gases. Rev. Math. Phys. 33(1), 2060009 (2021)
Benedikter, N.: Effective dynamics of interacting fermions from semiclassical theory to the random phase approximation. J. Math. Phys. 63(8), 081101 (2022)
Benedikter, N., Porta, M., Schlein, B.: Mean-field dynamics of fermions with relativistic dispersion. J. Math. Phys. 55(2), 021901 (2014)
Benedikter, N., Porta, M., Schlein, B.: Mean-field evolution of Fermionic systems. Commun. Math. Phys. 331(3), 1087–1131 (2014)
Benedikter, N., Jakšić, V., Porta, M., Saffirio, C., Schlein, B.: Mean-field evolution of Fermionic mixed states. Commun. Pure Appl. Math. 69(12), 2250–2303 (2016)
Benedikter, N., Sok, J., Solovej, J.P.: The Dirac–Frenkel principle for reduced density matrices, and the Bogoliubov–de Gennes equations. Ann. Henri Poincaré 19(4), 1167–1214 (2018)
Benedikter, N., Nam, P.T., Porta, M., Schlein, B., Seiringer, R.: Optimal upper bound for the correlation energy of a Fermi gas in the mean-field regime. Commun. Math. Phys. 374(3), 2097–2150 (2020)
Benedikter, N., Nam, P.T., Porta, M., Schlein, B., Seiringer, R.: Correlation energy of a weakly interacting Fermi gas. Invent. Math. 225(3), 885–979 (2021)
Benedikter, N., Porta, M., Schlein, B., Seiringer, R.: Correlation energy of a weakly interacting Fermi gas with large interaction potential (June 2021). Arch. Rational Mech. Anal. 247(65) (2023). https://doi.org/10.1007/s00205-023-01893-6
Benedikter, N., Nam, P.T., Porta, M., Schlein, B., Seiringer, R.: Bosonization of Fermionic many-body dynamics. Ann. Henri Poincaré 23(5), 1725–1764 (2022)
Chong, J.J., Lafleche, L., Saffirio, C.: From many-body quantum dynamics to the Hartree–Fock and Vlasov equations with singular potentials (May 2021). arXiv:2103.10946 [math-ph]
Chong, J.J., Lafleche, L., Saffirio, C.: On the \(l^2\) rate of convergence in the limit from Hartree to Vlasov–Poisson equation (Mar 2022).arXiv:2203.11485 [math-ph, physics:quant-ph]
Christiansen, M.R., Hainzl, C., Nam, P.T.: The random phase approximation for interacting Fermi gases in the mean-field regime (June 2021). arXiv:2106.11161 [cond-mat, physics:math-ph]
Christiansen, M.R., Hainzl, C., Nam, P.T.: The Gell-Mann–Brueckner formula for the correlation energy of electron gas: a rigorous upper bound in the mean-field regime (Aug 2022). Commun. Math. Phys. 401, 1469–1529 (2023). https://doi.org/10.1007/s00220-023-04672-2
Christiansen, M.R., Hainzl, C., Nam, P.T.: On the effective Quasi-Bosonic Hamiltonian of the electron gas: collective excitations and plasmon modes (June 2022). Lett. Math. Phys. 112, 114 (2022). https://doi.org/10.1007/s11005-022-01607-1
Fournais, S., Mikkelsen, S.: An optimal semiclassical bound on commutators of spectral projections with position and momentum operators. Lett. Math. Phys. 110(12), 3343–3373 (2020)
Fresta, L., Porta, M., Schlein, B.: Effective dynamics of extended Fermi gases in the high-density regime (Apr 2022). Commun. Math. Phys. 401, 1701–1751 (2023). https://doi.org/10.1007/s00220-023-04677-x
Fröhlich, J., Knowles, A.: A microscopic derivation of the time-dependent Hartree-Fock equation with Coulomb two-body interaction. J. Stat. Phys. 145(1), 23 (2011)
Lill, S.: Implementing Bogoliubov transformations beyond the Shale-Stinespring condition (Apr 2022). arXiv:2204.13407 [math-ph]
Lubich, C.: From Quantum to Classical Molecular Dynamics: Reduced Models and Numerical Analysis. Zurich Lectures in Advanced Mathematics. European Mathematical Society, Zürich (2008)
Narnhofer, H., Sewell, G.L.: Vlasov hydrodynamics of a quantum mechanical model. Commun. Math. Phys. 79(1), 9–24 (1981
Petrat, S., Pickl, P.: A new method and a new scaling for deriving Fermionic mean-field dynamics. Math. Phys. Anal. Geom. 19(1), 3 (2016)
Porta, M., Rademacher, S., Saffirio, C., Schlein, B.: Mean field evolution of Fermions with Coulomb interaction. J. Stat. Phys. 166(6), 1345–1364 (2017)
Rodnianski, I., Schlein, B.: Quantum fluctuations and rate of convergence towards mean field dynamics. Commun. Math. Phys. 291(1), 31–61 (2009)
Saffirio, C.: Mean-field evolution of Fermions with singular interaction. In: Cadamuro, D., Duell, M., Dybalski, W., Simonella, S. (eds.) Macroscopic Limits of Quantum Systems, vol. 270, pp. 81–99. Springer International Publishing, Cham (2018)
Spohn, H.: On the Vlasov hierarchy. Math. Methods Appl. Sci. 3(1), 445–455 (1981)
Acknowledgements
NB has been supported by Gruppo Nazionale per la Fisica Matematica (GNFM) in Italy and the European Research Council (ERC) through the Starting Grant FermiMath, grant agreement nr. 101040991. The authors acknowledge the support of Istituto Nazionale di Alta Matematica “F. Severi” through the Intensive Period “INdAM Quantum Meetings (IQM22)”. The authors do not have any conflicts of interest to disclose.
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Benedikter, N., Desio, D. (2023). Two Comments on the Derivation of the Time-Dependent Hartree–Fock Equation. In: Correggi, M., Falconi, M. (eds) Quantum Mathematics I. INdAM 2022. Springer INdAM Series, vol 57. Springer, Singapore. https://doi.org/10.1007/978-981-99-5894-8_13
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DOI: https://doi.org/10.1007/978-981-99-5894-8_13
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