Question

Using h to denote the gravitational potential, the Lagrangian for the graviton has terms proportional to h, h cubed, and h times this operation applied to h. This operation's associated Green's function equals a delta function of “t minus r over c” divided by 4 pi r. In the Lorenz gauge, applying this operation to the vector potential gives negative mu-nought times the current density. (-5[1])This (*) Lorentz-invariant operation is applied to a function to give zero in the most compact representation of the wave equation. (10[1])It is defined as one over c squared times the second time derivative, minus the square of the gradient. Either (-5[1])a box or “box squared” symbolizes, for 10 points, what operation named for a French physicist, the analogue of the Laplacian in Minkowski space? ■END■ (10[2])

ANSWER: d'Alembertian [or d'Alembert operator; accept quabla; accept box or box squared before “box”; reject “Laplacian” or “Laplace operator” or “nabla”]
<BB>
= Average correct buzz position

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Buzzes

PlayerTeamOpponentBuzz PositionValue
Liam KusalikThe Vulture's Guide to BuzzCameron et al.64-5
Colin VeeversNeg 5! Playing Quizbowl, Liddy StyleParth et al.8410
Ian ChowMilan et al.The Passion According to C.H.104-5
Benjamin ChapmanThe Passion According to C.H.Milan et al.12910
Andrej VukovicCameron et al.The Vulture's Guide to Buzz12910

Summary

2023 BHSU @ Maryland03/11/2023Y333%0%67%98.00
2023 BHSU @ Berkeley03/18/2023Y367%0%67%106.00
2023 BHSU Online04/15/2023Y475%0%50%105.00
2023 BHSU @ Sheffield04/15/2023Y2100%0%50%121.50
2023 BHSU @ Waterloo04/15/2023Y3100%0%67%114.00