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Pushing the limits of the reaction-coordinate mapping (2019)
Journal Article
Correa, L. A., Xu, B., Morris, B., & Adesso, G. (2019). Pushing the limits of the reaction-coordinate mapping. Journal of Chemical Physics, 151(9), Article 094107. https://doi.org/10.1063/1.5114690

The reaction-coordinate mapping is a useful technique to study complex quantum dissipative dynamics into structured environments. In essence, it aims to mimic the original problem by means of an “augmented system,” which includes a suitably chosen co... Read More about Pushing the limits of the reaction-coordinate mapping.

Energy-efficient quantum frequency estimation (2018)
Journal Article
Liuzzo-Scorpo, P., Correa, L., Pollock, F. A., Gorecka, A., Modi, K., & Adesso, G. (2018). Energy-efficient quantum frequency estimation. New Journal of Physics, 20, Article 063009. https://doi.org/10.1088/1367-2630/aac5b6

The problem of estimating the frequency of a two-level atom in a noisy environment is studied. Our interest is to minimise both the energetic cost of the protocol and the statistical uncertainty of the estimate. In particular, we prepare a probe in a... Read More about Energy-efficient quantum frequency estimation.

Enhancement of low-temperature thermometry by strong coupling (2017)
Journal Article
Correa, L. A., Perarnau-Llobet, M., Hovhannisyan, K. V., Mehboudi, M., Hernández-Santana, S., & Sanpera, A. (2017). Enhancement of low-temperature thermometry by strong coupling. Physical Review A, 96(6), Article 062103. https://doi.org/10.1103/PhysRevA.96.062103

We consider the problem of estimating the temperature T of a very cold equilibrium sample. The temperature estimates are drawn from measurements performed on a quantum Brownian probe strongly coupled to it. We model this scenario by resorting to the... Read More about Enhancement of low-temperature thermometry by strong coupling.

Testing the validity of the ‘local’ and ‘global’ GKLS master equations on an exactly solvable model (2017)
Journal Article
González, J. O., Correa, L. A., Nocerino, G., Palao, J. P., Alonso, D., & Adesso, G. (2017). Testing the validity of the ‘local’ and ‘global’ GKLS master equations on an exactly solvable model. Open Systems and Information Dynamics, 24(4), Article e1740010. https://doi.org/10.1142/S1230161217400108

When deriving a master equation for a multipartite weakly-interacting open quantum systems, dissipation is often addressed locally on each component, i.e. ignoring the coherent couplings, which are later added ‘by hand’. Although simple, the resultin... Read More about Testing the validity of the ‘local’ and ‘global’ GKLS master equations on an exactly solvable model.

Achieving sub-shot-noise sensing at finite temperatures (2016)
Journal Article
Mehboudi, M., Correa, L. A., & Sanpera, A. (2016). Achieving sub-shot-noise sensing at finite temperatures. Physical Review A, 94(4), Article 042121. https://doi.org/10.1103/PhysRevA.94.042121

We investigate sensing of magnetic fields using quantum spin chains at finite temperature and exploit quantum phase crossovers to improve metrological bounds on the estimation of the chain parameters. In particular, we analyze the XX spin chain and s... Read More about Achieving sub-shot-noise sensing at finite temperatures.

Testing a quantum heat pump with a two-level spin (2016)
Journal Article
Correa, L. A., & Mehboudi, M. (2016). Testing a quantum heat pump with a two-level spin. Entropy, 18(4), 141. https://doi.org/10.3390/e18040141

Once in its non-equilibrium steady state, a nanoscale system coupled to several heat baths may be thought of as a “quantum heat pump”. Depending on the direction of its stationary heat flows, it may function as, e.g., a refrigerator or a heat transfo... Read More about Testing a quantum heat pump with a two-level spin.