Matrix Models of 2D Gravity and Isomonodromic Deformation
Matrix Models of 2D Gravity and Isomonodromic Deformation
复制标题
二维重力和等单向变形的矩阵模型
DOI:
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发表时间:
2013
期刊:
影响因子:
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通讯作者:
G. Moore
中科院分区:
文献类型:
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作者:
G. Moore
One of the principal goals of the theory of 2D gravity is making sense of the formal expression
$$Zleft( {mu ,kappa ;{t_i}}
ight) = sumlimits_h {{{int_{ME{T_h}} {dge} }^{mu int {sqrt g + kint {sqrt g } + k} }}} {Z_{QFTleft( {{t_i}}
ight)}}left[ g
ight]$$
(1.1)
where we integrate over metrics g on surfaces with h handles with a weight defined by the Einstein-Hilbert action (μ is the cosmological constant and κ is Newton’s constant, or, equivalently, the string coupling) together with the partition function of some 2D quantum field theory, QFT(t i ). The parameters t i are coordinates on a subspace of the space of 2D field theories, or, equivalently, coordinates for a space of string backgrounds.