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16 Jun 2022: Setting the imaginary part of ⟨Ô⟩ψ to zero leads us tothe requirement Ô = Ô†, i.e. ... H1 H2 H and Ĥ1 = Ĥ2 = Ĥ. Then wefind a new requirement that any state has to fulfil.

18 Sep 2022: AB. We will not impose any such requirements if [A, B] 6= 0. ... In this case, the requirements of the Kocken-Specker theorem tell us that one of these.

13 Jun 2022: subject to the requirement of gauge invariance and (6.11). It’s straightforward to see. ... that there is no such state where we excite just a single (a)†: the requirement that.

19 Sep 2022: where b, p are growth rates, the nonnegative entries ofthe matrices C, D, E, F are competition strengths, k, arenonnegative rates of stochastic switching, and R, S are non-negative rates ... Finally, the analytical results stress that even small ratesof

18 Sep 2022: This is a strong requirement. First, it relates the absorption and stimulated emission coecients. ... g1B12 = g2B21 (4.29). We see that, as promised, it is a thermodynamic requirement that stimulated emission.

27 Mar 2022: where each entry is itself an. n. n. matrix. Then with this notation, Hamilton’s equations read. ... i. /. q. j. δ. i. j. α. E. i. /. p. j. ). (4.374). so the requirement that. 𝒥. J. 𝒥.

24 Jul 2022: The requirement that its determinant is 1 reduces this to 3 complex parameters, or 6. ... we’re missing something. What we’re missing is the additional requirement that the.

3 Dec 2022: When written in index notation, these are just the entries of the matrix so there’s no. ... equation of motion. We vary the path, x(t)! x(t) x(t), subject to the requirement.

30 Dec 2022: ΘeiHt/ |ψ(0)⟩ = eiHt/ Θ |ψ(0)⟩. Expanding this out for infinitesimal time t, we get the requirement. ... the adjoint A† is defined by the requirement. ⟨ϕ|A†|ψ⟩ = ⟨ψ|A|ϕ⟩.

3 Dec 2022: Lent Term, 2015. ElectromagnetismUniversity of Cambridge Mathematical Tripos. David Tong. Department of Applied Mathematics and Theoretical Physics,. Centre for Mathematical Sciences,. Wilberforce Road,. Cambridge, CB3 OBA, UK.