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arXiv 1310.4451hep-thgr-qc
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多维膜模型中的量子台球

Quantum billiards in multidimensional models with branes

V. D. Ivashchuk, V. N. Melnikov

摘要:

考虑了具有l个标量场和多种形式的引力D维模型。当选择宇宙学型对角度规时,采用电磁复合膜模型,并对膜施加一定的限制,研究了该模型的共形协变Wheeler-DeWitt(WDW)方程.在一定的限制条件下,得到了WDW方程在台球壁形成极限下的渐近解,从而将问题归结为(D+1 - 2)维Lobachevsky空间上的量子台球问题.量子台球的两个例子被认为是。第一个是D = 11模型的9维量子台球,它有330个四种形式,模拟了D=11超引力的类空M2-和M5-膜。第二个是模拟D =10 Ⅱ A超引力中类空D2-、D4-、FS 1-和NS 5-膜的一个标量场、210个四形式和120个三形式的D = 10引力模型的9维量子台球。结果表明,在这两个例子中,波函数消失的限制形成的台球壁(即我们得到了量子分辨率的奇异性11 D模型),但磁膜不能被忽略的量子渐近解的计算,而它们是无关的经典振荡行为时,所有的120个电膜。

英文摘要:

Gravitational D-dimensional model with l scalar fields and several forms is considered. When cosmological type diagonal metric is chosen, an electromagnetic composite brane ansatz is adopted and certain restrictions on the branes are imposed the conformally covariant Wheeler-DeWitt (WDW) equation for the model is studied. Under certain restrictions asymptotic solutions to WDW equation are found in the limit of the formation of the billiard walls which reduce the problem to the so-called quantum billiard on the (D+ l -2)-dimensional Lobachevsky space. Two examples of quantum billiards are considered. The first one deals with 9-dimensional quantum billiard for D = 11 model with 330 four-forms which mimic space-like M2- and M5-branes of D=11 supergravity. The second one deals with the 9-dimensional quantum billiard for D =10 gravitational model with one scalar field, 210 four-forms and 120 three-forms which mimic space-like D2-, D4-, FS1- and NS5-branes in D = 10 II A supergravity. It is shown that in both examples wave functions vanish in the limit of the formation of the billiard walls (i.e. we get a quantum resolution of the singularity for 11D model) but magnetic branes could not be neglected in calculations of quantum asymptotic solutions while they are irrelevant for classical oscillating behaviour when all 120 electric branes are present.

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