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8 Oct 2021: kA| ik  M k| ik for some fixed M > 0.

15 Apr 2021: Field Theory in Cosmology (Part III). Enrico Pajer. Contents. 1 A quick review of background cosmology 51.1 Classical cosmological backgrounds. 51.2 Motivations for Inflation. 101.3 A prolonged phase of quasi-de Sitter expansion. 151.4 Single field

15 Apr 2021: φ(k1). φ(kn)〉 δ3D. (na=1. ka. ). (19). 7. For the metric. ... φ(k1). φ(kn)〉 = (2π)3δ3D. (na=1. ka. )Bn(k1,. ,kn). (34). must scale as.

23 Apr 2021: q. kA(eiqa/2 eiqa/2). Notice that only the combination (r t) appears.

7 Apr 2021: m!2 = 2 eika eika. = 4sin2. ka. 2. We find the dispersion relation! = ... 2 =. mM. hm M. p(m M)2 4mM cos2(ka). i. The resulting dispersion relation is sketched in Figure 74 in the first Brillouin zone.

7 Apr 2021: structure. E = C cos(ka). Then the velocity in a constant electric field oscillates as. ... v(k) =Ca. sin(ka) = Ca. sineEa. t. The Bloch frequency is! =

7 Apr 2021: value. E = E0 2t cos(ka) (3.5). The spectrum is shown in the figure for t > 0.

16 Apr 2021: na=1. La〈O(k1)O(k2). O(kn)〉 = 0 , (1.1). where La = L(τa,τa, ka,ka) is some linear, possibly differential operator made of func-. ... Then (4.26) becomes[. 3(n 1) na=1. ka. ka. ]〈R(k1)R(k2). R(kn)〉′! = 0 , (4.38).

25 Aug 2021: q. kA(eiqa/2 eiqa/2). Notice that only the combination (r t) appears.

7 Apr 2021: Preprint typeset in JHEP style - HYPER VERSION Lent Term, 2017. Solid State PhysicsUniversity of Cambridge Part II Mathematical Tripos. David Tong. Department of Applied Mathematics and Theoretical Physics,. Centre for Mathematical Sciences,.