2016/01/05 by Stefano Liberati, Liberati, Stefano · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.1601.00785
openalex publication_date 2016/01/05 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
While General Relativity ranks undoubtedly among the best physics theories\never developed, it is also among those with the most striking implications. In\nparticular, General Relativity admits solutions which allow faster than light\nmotion and consequently time travel. Here we shall consider a "pre-emptive"\nchronology protection mechanism that destabilises superluminal warp drives via\nquantum matter back-reaction and hence forbids even the conceptual possibility\nto use these solutions for building a time machine. This result will be\nconsidered both in standard quantum field theory in curved spacetime as well as\nin the case of a quantum field theory with Lorentz invariance breakdown at high\nenergies. Some lessons and future perspectives will be finally discuss.\n