Question

Three principal invariants with respect to this quantity are named for Chern-Pontryagin, Euler, and Kretschmann. A renormalization method named for this quantity is used to find the order parameter of topological phase transitions. Non-zero values of this quantity necessitate generalizing the derivative operator to the (*) covariant derivative. The affine connections vanish for systems in which this quantity (10[2])is equal to zero. The contracted Bianchi identity relates a tensor (10[1])and a scalar describing this property, both of which are named for Ricci. (10[1])Non-zero values (10[1])of this quantity cause gravitational lensing, or the bending of light. When this quantity is non-zero, straight lines are generalized into geodesics. For 10 points, what quantity is zero for flat spacetime? ■END■

ANSWER: curvature [or curvature invariants; or curvature renormalization group method; or Ricci curvature; or curvature of spacetime]
<Leo Law, Physics>
= Average correct buzz position

Back to tossups

Buzzes

PlayerTeamOpponentBuzz PositionValue
Andrew Rout10 Negs that Shook the QuizTabearnacle5610
Matt BoothFour Neg OmeletteBetrayed by Rita Izzatdust5610
Michael KohnFoucault's PenndulumOld London Town6710
Michael Mays3HK1MMEdinburgh8010
Ewan MacAulayScottish, Irish, Both or NeitherYes, Moderator8210

Summary

2023 Penn Bowl (Harvard)10/21/2023Y2100%0%0%84.50
2023 Penn Bowl (Mainsite)10/21/2023Y786%0%29%69.17
2023 Penn Bowl (Norcal)10/28/2023Y2100%0%0%46.50
2023 Penn Bowl (South Central)10/28/2023Y367%0%33%113.50
2023 Penn Bowl (UK)10/28/2023Y5100%0%0%68.20
2023 Penn Bowl @ Waterloo10/28/2023Y4100%0%0%73.75
2023 Penn Bowl @ UNC10/28/2023Y3100%0%0%70.67
2023 Penn Bowl @ FSU10/28/2023Y1100%0%0%80.00