![]() ![]() Solid-state electronics are semiconductor electronics: electronic equipment that use semiconductor devices such as transistors, diodes and integrated circuits (ICs). This is called a solid-state circuit because all of the electrical activity in the circuit occurs within solid materials. (Identical particles) Abrikosov, Gorkov, Dzyaloshinski: Methods of quantum field theory in statistical physics, Chapter 3.Electronics with semiconductor components An integrated circuit (IC) on a printed circuit board. Nonrelativistic quantummechanics, chapter IX. Static susceptibility, quasi-one dimensional system, nesting, SDW instability, diagonalization of the mean field Hamiltonian below the critical temperature, quasiparticles, gap equation, specific heat jump.īose condensation, ground state of weakly interacting bosons, determination of the spectrum of excitations by Bogoliubov transformation, superfluidity. Screening of a point charge, induced charge, Friedel oscillations, Kohn anomaly, dynamic screening, plasmon oscillations, reflectivity of metals, interacting free electron spectrum, metallic bonding, region of applicability of the Hartree-Fock approximation, Wigner crystal. ![]() Kubo formula in real space, and in Fourier space.Įlectric and magnetic perturbations, time dependence of operators, dynamic susceptibility of interacting electrons in mean field approximation, spectrum of excitations, collective modes. Zeeman energy, homogeneous susceptibility of noninteracting system, mean field approximation, Stoner formula, lifetime of interacting electrons. Second quantized form of the Hamiltonian of free and Bloch electrons, electron-phonon interaction, Wannier basis, one band Hubbard modell. Second quantized form of one and two particle operators, creation and annihilation operators, commutation relations, field operators. Many particle wavefunction, symmetrization, Slater determinant, particle number representation. Those having signature from a previous semester will be offered the same grade as was proposed in that previous semester. This can result in a final grade which differs from the one proposed by one unit only. Those who do not accept the grade offered, may take oral exam. Grades are proposed based on the sum of points earned at the two tests: Requirements for signature – besides proper attendance –, both tests should be successful (at least 40% each). If still unsuccessful, there is a third possibility, but special process charge applies. Topics: Fermi liquid, Hartree-Fock approximation, Wigner crystal, Wannier states, Hubbard model.īoth tests can be attempted on the 13th week. test: 12th week (on practice) retake: 13th week. Topics: identical particles, second quantization for bosons and fermions, field operators, phonons, magnons, bosons.Ģ. test: 6th week (on practice) retake: 13th week. Tests during the semester: twice (90 minutes, 40 points each).ġ. Balázs Hetényi (course T1) Īttendance: Presence on at least 50% of the lectures and at least 70% of the practices is required for signature.
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