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arXiv 2004.06073hep-th
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虫洞产生粒子:一个1 + 1模型

Particle creation by wormholes: a 1 + 1 model

Gonzalo Gurrea-Ysasi, Gonzalo J. Olmo

摘要:

研究了无质量自由标量场在1 + 1维Minkowski空间中的传播。虫洞模型由两个类时轨迹组成,它们代表虫洞的入口和出口,通过某种传递函数连接,该函数指定到达入口的传入模式如何被传递到出口。我们发现,粒子和能量通量一般产生的传递函数,代表全球共形变换。我们考虑几个例子涉及出口轨迹是渐近惯性,渐近零,还涉及一个比光更快的运动,以说明发射的能量通量和量子相关的特性。

英文摘要:

The propagation of a free massless scalar field in a 1 + 1 dimensional Minkowski space modeling a wormhole is considered. The wormhole model consists on two timelike trajectories, which represent the entrance and the exit of the wormhole, connected via some transfer function that specifies how incoming modes that reach the entrance are transferred to the exit. We find that particles and energy fluxes are generically produced except for transfer functions that represent global conformal transformations. We consider several examples involving exit trajectories which are assymptotically inertial, asymptotically null and also involving a faster-than-light motion to illustrate the peculiarities of the emitted energy fluxes and quantum correlations.

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