Maceda Marco D, Sabín Carlos
Departamento de Física Teórica, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
Departamento de Física Teórica and CIAFF, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
Sci Rep. 2025 Jul 1;15(1):20626. doi: 10.1038/s41598-025-07349-z.
We propose an analog quantum simulation for studying the collapse and bounce of a star from infinity. In this spacetime, which encompasses both a black hole and a white hole, we place a massless scalar field that propagates at the speed of light, which is modified by the curvature. We simulate this system using an SQUID array, in which we can alter the propagation of light using an external magnetic field. We consider both infalling and outfalling radiation, giving rise to two different scenarios: downstream and upstream radiation. We compute the magnetic flux profile required by the simulation in both cases and find out that the former is more experimentally suitable.
我们提出一种模拟量子模拟方法，用于研究恒星从无限远处开始的坍缩和反弹。在这个既包含黑洞又包含白洞的时空里，我们放置一个以光速传播的无质量标量场，其传播速度会因曲率而改变。我们使用超导量子干涉装置（SQUID）阵列来模拟这个系统，在该阵列中我们可以利用外部磁场改变光的传播。我们考虑了入射辐射和出射辐射，从而产生了两种不同的情况：下游辐射和上游辐射。我们计算了这两种情况下模拟所需的磁通量分布，发现前者在实验上更具可行性。
