Outputs (22)

Characterising the stimulus-response function of mouse C-Low threshold mechanoreceptors to mechanical stimuliin vivo (2024)
Working Paper
Semizoglou, E., Lo Re, L., Middleton, S. J., Perez-Sanchez, J., Tufarelli, T., Bennett, D. L., & Chisholm, K. I. Characterising the stimulus-response function of mouse C-Low threshold mechanoreceptors to mechanical stimuliin vivo

C-low threshold mechanoreceptors (C-LTMRs) in animals (termed C-tactile (CT) fibres in humans) are a subgroup of C-fibre primary afferents, which innervate hairy skin and respond to low threshold punctate indentations and brush stimuli. These afferen... Read More about Characterising the stimulus-response function of mouse C-Low threshold mechanoreceptors to mechanical stimuliin vivo.

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.

Non-Orthogonal Bases for Quantum Metrology (2019)
Journal Article
Genoni, M. G., & Tufarelli, T. (2019). Non-Orthogonal Bases for Quantum Metrology. Journal of Physics A: Mathematical and Theoretical, 52(43), 1-18. https://doi.org/10.1088/1751-8121/ab3fe0

Many quantum statistical models are most conveniently formulated in terms of non-orthonormal bases. This is the case, for example, when mixtures and superpositions of coherent states are involved. In these instances, we show that the analytical evalu... Read More about Non-Orthogonal Bases for Quantum Metrology.

Towards superresolution surface metrology: quantum estimation of angular and axial separations (2019)
Journal Article
Napoli, C., Piano, S., Leach, R., Adesso, G., & Tufarelli, T. (2019). Towards superresolution surface metrology: quantum estimation of angular and axial separations. Physical Review Letters, 122(14), Article 140505. https://doi.org/10.1103/physrevlett.122.140505

We investigate the localization of two incoherent point sources with arbitrary angular and axial separations in the paraxial approximation. By using quantum metrology techniques, we show that a simultaneous estimation of the two separations is achiev... Read More about Towards superresolution surface metrology: quantum estimation of angular and axial separations.

Generic emergence of objectivity of observables in infinite dimensions (2018)
Journal Article
Knott, P. A., Tufarelli, T., Piani, M., & Adesso, G. (2018). Generic emergence of objectivity of observables in infinite dimensions. Physical Review Letters, 121(16), https://doi.org/10.1103/PhysRevLett.121.160401

Quantum Darwinism posits that information becomes objective whenever multiple observers indirectly probe a quantum system by each measuring a fraction of the environment. It was recently shown that objectivity of observables emerges generically from... Read More about Generic emergence of objectivity of observables in infinite dimensions.

Exploring corrections to the optomechanical Hamiltonian (2018)
Journal Article
Sala, K., & Tufarelli, T. (2018). Exploring corrections to the optomechanical Hamiltonian. Scientific Reports, 8, https://doi.org/10.1038/s41598-018-26739-0

We compare two approaches for deriving corrections to the “linear model” of cavity optomechanics, in order to describe effects that are beyond first order in the radiation pressure coupling. In the regime where the mechanical frequency is much lower... Read More about Exploring corrections to the optomechanical Hamiltonian.

Near-field strong coupling of single quantum dots (2018)
Journal Article
Groβ, H., Hamm, J., Tufarelli, T., Hess, O., & Hecht, B. (2018). Near-field strong coupling of single quantum dots. Science Advances, 4(3), Article 4906. https://doi.org/10.1126/sciadv.aar4906

Strong coupling and resultant mixing of light and matter states is an important asset for future quantum technologies. Here we demonstrate deterministic room-temperature strong coupling of a mesoscopic colloidal quantum dot to a plasmonic nano resona... Read More about Near-field strong coupling of single quantum dots.

Investigating Einstein-Podolsky-Rosen steering of continuous-variable bipartite states by non-Gaussian pseudospin measurements (2017)
Journal Article
Xiang, Y., Xu, B., Mišta, L., Tufarelli, T., He, Q., & Adesso, G. (2017). Investigating Einstein-Podolsky-Rosen steering of continuous-variable bipartite states by non-Gaussian pseudospin measurements. Physical Review A, 96(4), https://doi.org/10.1103/PhysRevA.96.042326

Einstein-Podolsky-Rosen (EPR) steering is an asymmetric form of correlations which is intermediate between quantum entanglement and Bell nonlocality, and can be exploited as a resource for quantum communication with one untrusted party. In particular... Read More about Investigating Einstein-Podolsky-Rosen steering of continuous-variable bipartite states by non-Gaussian pseudospin measurements.

Quantifying genuine multipartite correlations and their pattern complexity (2017)
Journal Article
Girolami, D., Tufarelli, T., & Susa, C. E. (2017). Quantifying genuine multipartite correlations and their pattern complexity. Physical Review Letters, 119(14), Article 140505. https://doi.org/10.1103/PhysRevLett.119.140505

We propose an information-theoretic framework to quantify multipartite correlations in classical and quantum systems, answering questions such as: what is the amount of seven-partite correlations in a given state of ten particles? We identify measure... Read More about Quantifying genuine multipartite correlations and their pattern complexity.

There is more to quantum interferometry than entanglement (2017)
Journal Article
Bromley, T. R., Silva, I. A., Oncebay-Segura, C. O., Soares-Pinto, D. O., deAzevedo, E. R., Tufarelli, T., & Adesso, G. (2017). There is more to quantum interferometry than entanglement. Physical Review A, 95(5), Article 052313. https://doi.org/10.1103/PhysRevA.95.052313

Entanglement has long stood as one of the characteristic features of quantum mechanics, yet recent developments have emphasized the importance of quantumness beyond entanglement for quantum foundations and technologies. We demonstrate that entangleme... Read More about There is more to quantum interferometry than entanglement.

Genuine multipartite nonlocality of permutationally invariant Gaussian states (2017)
Journal Article
Xu, B., Tufarelli, T., & Adesso, G. (2017). Genuine multipartite nonlocality of permutationally invariant Gaussian states. Physical Review A, 95(1), https://doi.org/10.1103/PhysRevA.95.012124

We investigate genuine multipartite nonlocality of pure permutationally invariant multimode Gaussian states of continuous variable systems, as detected by the violation of Svetlichny inequality. We identify the phase space settings leading to the lar... Read More about Genuine multipartite nonlocality of permutationally invariant Gaussian states.

Probing the diamagnetic term in light–matter interaction (2017)
Journal Article
Rossi, M. A., Bina, M., Paris, M. G., Genoni, M. G., Adesso, G., & Tufarelli, T. (2017). Probing the diamagnetic term in light–matter interaction. Quantum Science and Technology, 2(1), https://doi.org/10.1088/2058-9565/aa540a

We address the quantum estimation of the diamagnetic, or A 2, term in an effective model of light–matter interaction featuring two coupled oscillators. First, we calculate the quantum Fisher information of the diamagnetic parameter in the interacting... Read More about Probing the diamagnetic term in light–matter interaction.

Experimental realization of a thermal squeezed state of levitated optomechanics (2016)
Journal Article
Rashid, M., Tufarelli, T., Bateman, J., Vovrosh, J., Hempston, D., Kim, M. S., & Ulbricht, H. (in press). Experimental realization of a thermal squeezed state of levitated optomechanics. Physical Review Letters, 117(27), Article 273601. https://doi.org/10.1103/PhysRevLett.117.273601

We experimentally squeeze the thermal motional state of an optically levitated nanosphere by fast switching between two trapping frequencies. The measured phase-space distribution of the center of mass of our particle shows the typical shape of a squ... Read More about Experimental realization of a thermal squeezed state of levitated optomechanics.

Quantum state reconstruction of an oscillator network in an optomechanical setting (2016)
Journal Article
Moore, D. W., Tufarelli, T., Paternostro, M., & Ferraro, A. (2016). Quantum state reconstruction of an oscillator network in an optomechanical setting. Physical Review A, 94(5), Article 053811. https://doi.org/10.1103/PhysRevA.94.053811

We introduce a scheme to reconstruct an arbitrary quantum state of a mechanical oscillator network. We assume that a single element of the network is coupled to a cavity field via a linearized optomechanical interaction, whose time dependence is cont... Read More about Quantum state reconstruction of an oscillator network in an optomechanical setting.

Bound states and entanglement generation in waveguide quantum electrodynamics (2016)
Journal Article
Facchi, P., Kim, M., Pascazio, S., Pepe, F. V., Pomarico, D., & Tufarelli, T. (2016). Bound states and entanglement generation in waveguide quantum electrodynamics. Physical Review A, 94(4), Article 043839. https://doi.org/10.1103/PhysRevA.94.043839

We investigate the behavior of two quantum emitters (two-level atoms) embedded in a linear waveguide, in a quasi-one-dimensional configuration. Since the atoms can emit, absorb and reflect radiation, the pair can spontaneously relax towards an entang... Read More about Bound states and entanglement generation in waveguide quantum electrodynamics.

Non-Markovianity of a quantum emitter in front of a mirror (2014)
Journal Article
Tufarelli, T., Kim, M., & Ciccarello, F. (2014). Non-Markovianity of a quantum emitter in front of a mirror. Physical Review A, 90(1), doi:10.1103/PhysRevA.90.012113

We consider a quantum emitter (“atom”) radiating in a one-dimensional photonic waveguide in the presence of a single mirror, resulting in a delay differential equation for the atomic amplitude. We carry out a systematic analysis of the non-Markovian... Read More about Non-Markovianity of a quantum emitter in front of a mirror.

Quantum non-Gaussianity witnesses in phase space (2014)
Journal Article
Hughes, C., Tufarelli, T., Genoni, M. G., Paris, M. G., & Kim, M. (2014). Quantum non-Gaussianity witnesses in phase space. Physical Review A, 90(1), doi:10.1103/PhysRevA.90.013810

Quantum discord determines the interferometric power of quantum states (2014)
Journal Article
Girolami, D., Souza, A. M., Giovannetti, V., Tufarelli, T., Filgueiras, J. G., Sarthour, R. S., …Adesso, G. (2014). Quantum discord determines the interferometric power of quantum states. Physical Review Letters, 112(21), https://doi.org/10.1103/PhysRevLett.112.210401

Quantum metrology exploits quantum mechanical laws to improve the precision in estimating technologically relevant parameters such as phase, frequency, or magnetic fields. Probe states are usually tailored to the particular dynamics whose parameters... Read More about Quantum discord determines the interferometric power of quantum states.

Coherently opening a high-Q cavity (2014)
Journal Article
Tufarelli, T., Serafini, A., Ferraro, A., Kim, M. S., & Bose, S. (2014). Coherently opening a high-Q cavity. Physical Review Letters, 112(13), doi:10.1103/PhysRevLett.112.133605

We propose a general framework to effectively “open” a high-Q resonator, that is, to release the quantum state initially prepared in it in the form of a traveling electromagnetic wave. This is achieved by employing a mediating mode that scatters cohe... Read More about Coherently opening a high-Q cavity.

Toward computability of trace distance discord (2014)
Journal Article
Ciccarello, F., Tufarelli, T., & Giovannetti, V. (2014). Toward computability of trace distance discord. New Journal of Physics, 16, doi:10.1088/1367-2630/16/1/013038

It is known that a reliable geometric quantifier of discord-like correlations can be built by employing the so-called trace distance, which is used to measure how far the state under investigation is from the closest 'classical-quantum' state. To dat... Read More about Toward computability of trace distance discord.