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单词 KahlerPotential
释义

Kähler potential


A Kähler potential is a real-valued function f defined on some coordinate patch of aHermitean manifold such that the metric of the manifold is given by the expression

gij*=2fdzidz¯j.

It turns out that, for every Káhler manifold, there will exist a coordinate neighborhoodMathworldPlanetmath of anygiven point in which the metric can be expresses in terms of a potential this way.

As an elementary example of a Kähler potential, we may consider f(z,z¯)=zz¯. This potential gives rise to the flat metric ds2=dzdz¯.

Kähler potentials have applications in physics. For example, this function f(x)=log(x)+g(x) relates to the motion of certain subatomic particles called gauginos.

References

  • 1 T. Barreiro, B. de Carlos & E. J. Copeland, “On non-perturbative corrections to the Kähler potential” Physical Review D57 (1998): 7354 - 7360
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更新时间:2025/5/4 7:17:11