Relativistic quantum information
Relativistic quantum information is an emerging field which studies how to process information using quantum systems taking into account the relativistic nature of spacetime. My main aim is to find ways to exploit relativity to improve quantum information tasks such as teleportation and to develop new relativistic quantum technologies.
Relativistic quantum metrology
Quantum metrology techniques and quantum geometric phases can be applied to measure physical parameters that play an important role in quantum field theory. For example, using these techniques the Unruh temperature can be measured at accelerations up to a billion times smaller than previous proposals . Moreover, entanglement can be used to determine spacetime parameters such as the expansion rate of the Universe .
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 I. Fuentes, R. B. Mann, E. Martin-Martinez, & S. Moradi, Phys. Rev. D 82, 045030 (2010), JJ.L. Ball, I. Fuentes-Schuller & F.P. Schuller, Phys. Lett. A, 359, 550 (2006).