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Gravity in the quantum lab (2017)
Journal Article
Howl, R., Hackermüller, L., Bruschi, D. E., & Fuentes, I. (2018). Gravity in the quantum lab. Advances in Physics, 3(1), Article 1383184. https://doi.org/10.1080/23746149.2017.1383184

At the beginning of the previous century, Newtonian mechanics was advanced by two new revolutionary theories, Quantum Mechanics (QM) and General Relativity (GR). Both theories have transformed our view of physical phenomena, with QM accurately predic... Read More about Gravity in the quantum lab.

Quantum decoherence of phonons in Bose–Einstein condensates (2017)
Journal Article
Howl, R., Sabín, C., Hackermüller, L., & Fuentes, I. (2017). Quantum decoherence of phonons in Bose–Einstein condensates. Journal of Physics B: Atomic, Molecular and Optical Physics, 51(1), https://doi.org/10.1088/1361-6455/aa9622

We apply modern techniques from quantum optics and quantum information science to Bose–Einstein condensates(BECs)in order to study, for the first time, the quantum decoherence of phonons of isolated BECs. In the last few years, major advances in the... Read More about Quantum decoherence of phonons in Bose–Einstein condensates.

Relativistic Quantum Clocks (2017)
Book Chapter
Lock, M. P. E., & Fuentes, I. (2017). Relativistic Quantum Clocks. In Time in Physics: Tutorials, Schools, and Workshops in the Mathematical Sciences, 51-68. Springer. doi:10.1007/978-3-319-68655-4_5

The conflict between quantum theory and the theory of relativity is exemplified in their treatment of time. We examine the ways in which their conceptions differ, and describe a semiclassical clock model combining elements of both theories. The resul... Read More about Relativistic Quantum Clocks.

Dynamical Casimir effect in curved spacetime (2017)
Journal Article
Lock, M. P., & Fuentes, I. (2017). Dynamical Casimir effect in curved spacetime. New Journal of Physics, 19, https://doi.org/10.1088/1367-2630/aa7651

A boundary undergoing relativistic motion can create particles from quantum vacuum fluctuations in a phenomenon known as the dynamical Casimir effect (DCE). We examine the creation of particles, and more generally the transformation of quantum field... Read More about Dynamical Casimir effect in curved spacetime.

Experimental test of photonic entanglement in accelerated reference frames (2017)
Journal Article
Fink, M., Rodriguez-Aramendia, A., Handsteiner, J., Ziarkash, A., Steinlechner, F., Scheidl, T., …Ursin, R. (2017). Experimental test of photonic entanglement in accelerated reference frames. Nature Communications, 8, 1-6. https://doi.org/10.1038/ncomms15304

The unification of the theory of relativity and quantum mechanics is a long-standing challenge in contemporary physics. Experimental techniques in quantum optics have only recently reached the maturity required for the investigation of quantum system... Read More about Experimental test of photonic entanglement in accelerated reference frames.

Quantum communications and quantum metrology in the spacetime of a rotating planet (2017)
Journal Article
Kohlrus, J., Bruschi, D. E., Louko, J., & Fuentes, I. (2017). Quantum communications and quantum metrology in the spacetime of a rotating planet. EPJ Quantum Technology, 4, Article 7. https://doi.org/10.1140/epjqt/s40507-017-0061-0

We study how quantum systems that propagate in the spacetime of a rotating planet are affected by the curved background. Spacetime curvature affects wavepackets of photons propagating from Earth to a satellite, and the changes in the wavepacket encod... Read More about Quantum communications and quantum metrology in the spacetime of a rotating planet.

Generating entanglement between two-dimensional cavities in uniform acceleration (2016)
Journal Article
Regula, B., Lee, A. R., Dragan, A., & Fuentes, I. (2016). Generating entanglement between two-dimensional cavities in uniform acceleration. Physical Review D, 93(2), Article 025034. https://doi.org/10.1103/physrevd.93.025034

Moving cavities promise to be a suitable system for relativistic quantum information processing. It has been shown that an inertial and a uniformly accelerated one-dimensional cavity can become entangled by letting an atom emit an excitation while it... Read More about Generating entanglement between two-dimensional cavities in uniform acceleration.

Quantum thermodynamics for a model of an expanding Universe (2016)
Journal Article
Nana Liu, Goold, J., Fuentes, I., Vedral, V., Modi, K., & Bruschi, D. E. (2016). Quantum thermodynamics for a model of an expanding Universe. Classical and Quantum Gravity, 33(3), 035003. https://doi.org/10.1088/0264-9381/33/3/035003

We investigate the thermodynamical properties of quantum fields in curved spacetime. Our approach is to consider quantum fields in curved spacetime as a quantum system undergoing an out-of-equilibrium transformation. The non-equilibrium features are... Read More about Quantum thermodynamics for a model of an expanding Universe.

Quantum estimation of the Schwarzschild spacetime parameters of the Earth (2014)
Journal Article
Bruschi, D. E., Datta, A., Ursin, R., Ralph, T. C., & Fuentes, I. (2014). Quantum estimation of the Schwarzschild spacetime parameters of the Earth. Physical Review D, 90(12), doi:10.1103/PhysRevD.90.124001

We propose a quantum experiment to measure with high precision the Schwarzschild spacetime parameters of the Earth. The scheme can also be applied to measure distances by taking into account the curvature of the Earth’s spacetime. As a wave packet of... Read More about Quantum estimation of the Schwarzschild spacetime parameters of the Earth.

Impurities as a quantum thermometer for a Bose-Einstein condensate (2014)
Journal Article
Sabín, C., White, A., Hackermuller, L., & Fuentes, I. (2014). Impurities as a quantum thermometer for a Bose-Einstein condensate. Scientific Reports, 4, 1-6. https://doi.org/10.1038/srep06436

We introduce a primary thermometer which measures the temperature of a Bose-Einstein Condensate in the sub-nK regime. We show, using quantum Fisher information, that the precision of our technique improves the state-of-the-art in thermometry in the s... Read More about Impurities as a quantum thermometer for a Bose-Einstein condensate.

Gravitational parameter estimation in a waveguide (2014)
Journal Article
Doukas, J., Westwood, L., Faccio, D., Di Falco, A., & Fuentes, I. (2014). Gravitational parameter estimation in a waveguide. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(2), doi:10.1103/physrevd.90.024022

Relativistic Quantum Metrology: Exploiting relativity to improve quantum measurement technologies (2014)
Journal Article
Ahmadi, M., Bruschi, D. E., Sabín, C., Adesso, G., & Fuentes, I. (2014). Relativistic Quantum Metrology: Exploiting relativity to improve quantum measurement technologies. Scientific Reports, 4(1), 1-6. https://doi.org/10.1038/srep04996

We present a framework for relativistic quantum metrology that is useful for both Earth-based and space-based technologies. Quantum metrology has been so far successfully applied to design precision instruments such as clocks and sensors which outper... Read More about Relativistic Quantum Metrology: Exploiting relativity to improve quantum measurement technologies.

Testing the effects of gravity and motion on quantum entanglement in space-based experiments (2014)
Journal Article
Bruschi, D. E., Sabín, C., White, A., Baccetti, V., Oi, D. K., & Fuentes, I. (2014). Testing the effects of gravity and motion on quantum entanglement in space-based experiments. New Journal of Physics, 16, 1-15. https://doi.org/10.1088/1367-2630/16/5/053041

We propose an experiment to test the effects of gravity and acceleration on quantum entanglement in space-based setups. We show that the entanglement between excitations of two Bose–Einstein condensates is degraded after one of them undergoes a chang... Read More about Testing the effects of gravity and motion on quantum entanglement in space-based experiments.

Quantum metrology for relativistic quantum fields (2014)
Journal Article
Ahmadi, M., Fuentes, I., & Edward Bruschi, D. (2014). Quantum metrology for relativistic quantum fields. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(6), doi:10.1103/PhysRevD.89.065028

In quantum metrology quantum properties such as squeezing and entanglement are exploited in the design of a new generation of clocks, sensors and other measurement devices that can outperform their classical counterparts. Applications of great techno... Read More about Quantum metrology for relativistic quantum fields.