Abstract
We consider the Thomas–Fermi–Dirac–von Weizsäcker model for a system composed of infinitely many nuclei placed on a periodic lattice and electrons with a periodic density. We prove that if the Dirac constant is small enough, the electrons have the same periodicity as the nuclei. On the other hand, if the Dirac constant is large enough, the 2-periodic electronic minimizer is not 1-periodic, and hence, symmetry breaking occurs. We analyze in detail the behavior of the electrons when the Dirac constant tends to infinity and show that the electrons all concentrate around exactly one of the 8 nuclei of the unit cell of size 2, which is the explanation of the breaking of symmetry. Zooming at this point, the electronic density solves an effective nonlinear Schrödinger equation in the whole space with nonlinearity \(u^{7/3}-u^{4/3}\). Our results rely on the analysis of this nonlinear equation, in particular on the uniqueness and non-degeneracy of positive solutions.
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Bahouri, H., Gérard, P.: High frequency approximation of solutions to critical nonlinear wave equations. Am. J. Math. 121, 31–175 (1999)
Bellazzini, J., Ghimenti, M.: Symmetry breaking for Schrödinger–Poisson–Slater energy? arXiv:1601.05626 (2016)
Berestycki, H., Lions, P.-L.: Nonlinear scalar field equations. I. Existence of a ground state. Arch. Ration. Mech. Anal. 82, 313–345 (1983)
Bokanowski, O., Grebert, B., Mauser, N.J.: Local density approximations for the energy of a periodic Coulomb model. Math. Models Methods Appl. Sci. 13, 1185–1217 (2003)
Bokanowski, O., Mauser, N.J.: Local approximation for the Hartree–Fock exchange potential: a deformation approach. Math. Models Methods Appl. Sci. 9, 941–961 (1999)
Brothers, J.E., Ziemer, W.P.: Minimal rearrangements of Sobolev functions. J. Reine Angew. Math. 384, 153–179 (1988)
Catto, I., Le Bris, C., Lions, P.-L.: The Mathematical Theory of Thermodynamic Limits: Thomas–Fermi Type Models. Oxford Mathematical Monographs. The Clarendon Press, Oxford University Press, New York (1998)
Chen, M., Xia, J., Huang, C., Dieterich, J.M., Hung, L., Shin, I., Carter, E.A.: Introducing PROFESS 3.0: an advanced program for orbital-free density functional theory molecular dynamics simulations. Comput. Phys. Commun. 190, 228–230 (2015)
Dirac, P.A.: Note on exchange phenomena in the Thomas atom. Proc. Camb. Philos. Soc. 26, 376–385 (1930)
Frank, R.L., Lenzmann, E.: Uniqueness of non-linear ground states for fractional Laplacians in \(\mathbb{R}\). Acta Math. 210, 261–318 (2013)
Frank, R.L., Lenzmann, E., Silvestre, L.: Uniqueness of radial solutions for the fractional Laplacian. Commun. Pure Appl. Math. 69, 1671–1726 (2016)
Frank, R.L., Lieb, E.H.: Possible lattice distortions in the Hubbard model for graphene. Phys. Rev. Lett. 107, 066801 (2011)
Friesecke, G.: Pair correlations and exchange phenomena in the free electron gas. Commun. Math. Phys. 184, 143–171 (1997)
Fröhlich, H.: On the theory of superconductivity: the one-dimensional case. Proc. R. Soc. Lond. A 223, 296–305 (1954)
Garcia Arroyo, M., Séré, E.: Existence of kink solutions in a discrete model of the polyacetylene molecule. Working paper or preprint (2012)
Gérard, P.: Description du défaut de compacité de l’injection de Sobolev. ESAIM Control Optim. Calc. Var. 3, 213–233 (1998)
Gidas, B., Ni, W.M., Nirenberg, L.: Symmetry of positive solutions of nonlinear elliptic equations in \({\mathbb{R}}^N\). Adv. Math. Suppl. Stud. A 7, 369–402 (1981)
Graf, G.M., Solovej, J.P.: A correlation estimate with applications to quantum systems with Coulomb interactions. Rev. Math. Phys. 6, 977–997 (1994). Special issue dedicated to Elliott H. Lieb
Grillakis, M., Shatah, J., Strauss, W.: Stability theory of solitary waves in the presence ofsymmetry. I. J. Funct. Anal. 74, 160–197 (1987)
Hmidi, T., Keraani, S.: Blowup theory for the critical nonlinear Schrödinger equations revisited. Int. Math. Res. Not. 2005, 2815–2828 (2005)
Johnson, R.A.: Empirical potentials and their use in the calculation of energies of point defects in metals. J. Phys. F Met. Phys. 3, 295 (1973)
Kennedy, T., Lieb, E.H.: An itinerant electron model with crystalline or magnetic long range order. Phys. A 138, 320–358 (1986)
Kennedy, T., Lieb, E.H.: Proof of the Peierls instability in one dimension. Phys. Rev. Lett. 59, 1309–1312 (1987)
Killip, R., Oh, T., Pocovnicu, O., Vişan, M.: Solitons and scattering for the cubic-quintic nonlinear Schrödinger equation on \(\mathbb{R}^3\). Arch. Ration. Mech. Anal. 225, 469–548 (2017)
Killip, R., Vişan, M.: Nonlinear Schrödinger Equations at Critical Regularity. Lecture Notes for the Summer School of Clay Mathematics Institute (2008)
Kin-Lic Chan, G., Handy, N.C.: Optimized Lieb–Oxford bound for the exchange-correlation energy. Phys. Rev. A 59, 3075–3077 (1999)
Le Bris, C.: Quelques problèmes mathématiques en chimie quantique moléculaire. Ph.D. thesis, École Polytechnique (1993)
Lenzmann, E.: Uniqueness of ground states for pseudorelativistic Hartree equations. Anal. PDE 2, 1–27 (2009)
Levy, M., Perdew, J.P.: Tight bound and convexity constraint on the exchange-correlation-energy functional in the low-density limit, and other formal tests of generalized-gradient approximations. Phys. Rev. B 48, 11638–11645 (1993)
Lewin, M.: Variational methods in quantum mechanics. Unpublished lecture notes (University of Cergy-Pontoise) (2010)
Lewin, M., Lieb, E.H.: Improved Lieb–Oxford exchange-correlation inequality with a gradient correction. Phys. Rev. A 91, 022507 (2015)
Lewin, M., Rota Nodari, S.: Uniqueness and non-degeneracy for a nuclear nonlinear Schrödinger equation. Nonlinear Differ. Equ. Appl. 22, 673–698 (2015)
Li, C.: Monotonicity and symmetry of solutions of fully nonlinear elliptic equations on unbounded domains. Commun. Partial Differ. Equ. 16, 585–615 (1991)
Lieb, E.H.: Existence and uniqueness of the minimizing solution of Choquard’s nonlinear equation. Stud. Appl. Math. 57, 93–105 (1976/1977)
Lieb, E.H.: A lower bound for Coulomb energies. Phys. Lett. A 70, 444–446 (1979)
Lieb, E.H.: Thomas–Fermi and related theories of atoms and molecules. Rev. Mod. Phys. 53, 603–641 (1981)
Lieb, E.H.: A model for crystallization: a variation on the Hubbard model. Phys. A 140, 240–250 (1986). Statphys 16 (Boston, MA, 1986)
Lieb, E.H., Loss, M.: Analysis. Vol. 14 of Graduate Studies in Mathematics, 2nd edn. American Mathematical Society, Providence, RI (2001)
Lieb, E.H., Nachtergaele, B.: Dimerization in ring-shaped molecules: the stability of the Peierls instability. In: XIth International Congress of Mathematical Physics (Paris, 1994), pp. 423–431. International Press, Cambridge, MA (1995)
Lieb, E.H., Nachtergaele, B.: Stability of the Peierls instability for ring-shaped molecules. Phys. Rev. B 51, 4777 (1995)
Lieb, E.H., Nachtergaele, B.: Bond alternation in ring-shaped molecules: the stability of the Peierls instability. Int. J. Quantum Chem. 58, 699–706 (1996)
Lieb, E.H., Oxford, S.: Improved lower bound on the indirect Coulomb energy. Int. J. Quantum Chem. 19, 427–439 (1980)
Lieb, E.H., Seiringer, R.: The Stability of Matter in Quantum Mechanics. Cambridge University Press, Cambridge (2010)
Lieb, E.H., Simon, B.: The Thomas–Fermi theory of atoms, molecules and solids. Adv. Math. 23, 22–116 (1977)
Lions, P.-L.: The concentration-compactness principle in the calculus of variations. The locally compact case. II. Ann. Inst. Henri Poincaré Anal. Non Linéaire 1, 223–283 (1984)
Lions, P.-L.: Solutions of Hartree–Fock equations for Coulomb systems. Commun. Math. Phys. 109, 33–97 (1987)
Morrey Jr., C.B.: On the analyticity of the solutions of analytic non-linear elliptic systems of partial differential equations. I. Analyticity in the interior. Am. J. Math. 80, 198–218 (1958)
Nam, P.T., Van Den Bosch, H.: Nonexistence in Thomas–Fermi–Dirac–von Weizsäcker theory with small nuclear charges. Math. Phys. Anal. Geom. 20, 6 (2017)
Peierls, R.E.: Quantum Theory of Solids. Clarendon Press, Oxford (1955)
Perdew, J.P.: Unified theory of exchange and correlation beyond the local density approximation. In: Ziesche, P., Eschrig, H. (eds.) Electronic Structure of Solids ’91, pp. 11–20. Akademie Verlag, Berlin (1991)
Perdew, J.P., Burke, K., Ernzerhof, M.: Generalized gradient approximation made simple. Phys. Rev. Lett. 77, 3865–3868 (1996)
Perdew, J.P., Wang, Y.: Accurate and simple analytic representation of the electron-gas correlation energy. Phys. Rev. B 45, 13244–13249 (1992)
Prodan, E.: Symmetry breaking in the self-consistent Kohn–Sham equations. J. Phys. A 38, 5647–5657 (2005)
Prodan, E., Nordlander, P.: Hartree approximation. III. Symmetry breaking. J. Math. Phys. 42, 3424–3438 (2001)
Ricaud, J.: On uniqueness and non-degeneracy of anisotropic polarons. Nonlinearity 29, 1507–1536 (2016)
Ricaud, J.: Symétrie et brisure de symétrie pour certains problèmes non linéaires. Ph.D. thesis, Université de Cergy-Pontoise (2017)
Seiringer, R.: A correlation estimate for quantum many-body systems at positive temperature. Rev. Math. Phys. 18, 233–253 (2006)
Serrin, J., Tang, M.: Uniqueness of ground states for quasilinear elliptic equations. Indiana Univ. Math. J. 49, 897–923 (2000)
Sherrill, C.D., Lee, M.S., Head-Gordon, M.: On the performance of density functional theory for symmetry-breaking problems. Chem. Phys. Lett. 302, 425–430 (1999)
Tod, P., Moroz, I.M.: An analytical approach to the Schrödinger–Newton equations. Nonlinearity 12, 201–216 (1999)
Weinstein, M.I.: Modulational stability of ground states of nonlinear Schrödinger equations. SIAM J. Math. Anal. 16, 472–491 (1985)
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Communicated by Nader Masmoudi.
The author is grateful to Mathieu Lewin for helpful discussions and advices, and to Enno Lenzmann for bringing our attention to the facts mentioned in the first remark after Conjecture 7. The author acknowledges financial support from the European Research Council under the European Community’s Seventh Framework Program (FP7/2007-2013 Grant Agreement MNIQS 258023).
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Ricaud, J. Symmetry Breaking in the Periodic Thomas–Fermi–Dirac–von Weizsäcker Model. Ann. Henri Poincaré 19, 3129–3177 (2018). https://doi.org/10.1007/s00023-018-0711-5
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DOI: https://doi.org/10.1007/s00023-018-0711-5