2024-03-28T17:22:20Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1457302017-12-18T14:00:53Zcom_10261_14181com_10261_4col_10261_14182
00925njm 22002777a 4500
dc
Sabín, Carlos
author
2016-10-04
We present an analog quantum simulator of spacetimes containing traversable wormholes. A suitable spatial dependence in the external bias of a dc-SQUID array mimics the propagation of light in a 1D wormhole background. The impedance of the array places severe limitations on the type of spacetime that we are able to implement. However, we find that a wormhole throat radius in the submillimeter range is achievable. We show how to modify this spacetime in order to allow the existence of closed timelike curves. The quantum fluctuations of the phase associated to the finite array impedance might be seen as an analog of Hawking's chronology-protection mechanism. © 2016 American Physical Society
Physical Review D - Particles, Fields, Gravitation and Cosmology 94: 081501(R) (2016)
http://hdl.handle.net/10261/145730
10.1103/PhysRevD.94.081501
http://dx.doi.org/10.13039/501100003339
Quantum simulation of traversable wormhole spacetimes in a dc-SQUID array