All Outputs (3)

Quantum estimation of coupling strengths in driven-dissipative optomechanics (2021)
Journal Article
Sala, K., Doicin, T., Armour, A. D., & Tufarelli, T. (2021). Quantum estimation of coupling strengths in driven-dissipative optomechanics. Physical Review A, 104(3), Article 033508. https://doi.org/10.1103/PhysRevA.104.033508

We exploit local quantum estimation theory to investigate the measurement of linear (g1) and quadratic (g2) coupling strengths in a driven-dissipative optomechanical system in the red-sideband regime. We consider model parameters inspired by recent e... Read More about Quantum estimation of coupling strengths in driven-dissipative optomechanics.

Single quantum emitter Dicke enhancement (2021)
Journal Article
Tufarelli, T., Friedrich, D., Groß, H., Hamm, J., Hess, O., & Hecht, B. (2021). Single quantum emitter Dicke enhancement. Physical Review Research, 3(3), Article 033103. https://doi.org/10.1103/physrevresearch.3.033103

Coupling N identical emitters to the same field mode is well-established method to enhance light matter interaction. However, the resulting √ N-boost of the coupling strength comes at the cost of a "linearized" (effectively semi-classical) dynamics.... Read More about Single quantum emitter Dicke enhancement.

General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging (2021)
Journal Article
Fiderer, L. J., Tufarelli, T., Adesso, G., & Piano, S. (2021). General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging. PRX Quantum, 2(2), Article 020308. https://doi.org/10.1103/prxquantum.2.020308

The quantum Fisher information matrix is a central object in multiparameter quantum estimation theory. It is usually challenging to obtain analytical expressions for it because most calculation methods rely on the diagonalization of the density matri... Read More about General Expressions for the Quantum Fisher Information Matrix with Applications to Discrete Quantum Imaging.