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4 Oct 2023: and interpret this result. Evaluate [X(t),P(t)]. 4. A Fermi oscillator has Hilbert space H = C2 and Hamiltonian H = B†B, where B2 = 0 and. ... B†B BB† = 1 (the anti commutator). Find the eigenvalues of H.

10 Oct 2023: a) Write the group multiplication table for D4. (b) What are the subgroups of D4? ... t(A B) t2. 2[A, B]. t3. 12{[A, [A, B]] [B, [B, A]]}. ).

7 Mar 2023: B. t+ u B = B u η2B. Supposing that the velocity retains purely the form of a linear shear flow, u = Sxey,show that the induction equation has solutions in the ... Verify that B B = 0 for this solution, and confirm that the magnetic field has

10 Oct 2023: How do your equations behave when the points a, b or c are interchanged? ... a b, b c, c a ] = [a, b, c]2.

1 Nov 2023: det M = (a b)(b c)(c a)(ab bc ca). [Recall: the value of a determinant is unchanged if a multiple of one row is added to another row.]. ... a0tn ). Hint: Use properties of the determinant such as det(A) det(B) = det(AB).

24 Nov 2023: Sheet 1, 4c):. (aI b σ)(a′I b′ σ) = (aa′ b b′)I (ab′ a′b ib b′) σ. ... b) Show that(. 1 1. 2σ δv. ). B(ψ,n) = B(ψ′,n′)R,.

25 Oct 2023: In general, the linear ODE system is of the form. u′ = Au b, u(0) = u0, (2.22). ... Note that our analysis should accommodate b = b(t), since boundary conditions might vary intime!

9 Oct 2023: b) p = (1λ)a 12λb 1. 2λc. (c) q = (1µ)b 12µc 1. ... B6. (a) n̂ = b/|b|. (b) (ca) n̂. (c) c (c n̂)n̂.

12 Nov 2023: a tan1 y. a). H14. (b) J = 1b(1 eax cos bx) a. ... J1. P({B,B}) = 29, P({B,G}) = 4. 9, P({B,Y}) = 1.

3 Oct 2023: Show thatboth equations found in parts (a) and (b) give the same answer. ... Add to this diagram the non-orthogonalbasis set represented by a and b.