All Outputs (17)

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.

Colloquium: quantum coherence as a resource (2017)
Journal Article
Streltsov, A., Adesso, G., & Plenio, M. B. (2017). Colloquium: quantum coherence as a resource. Reviews of Modern Physics, 89, Article 041003. https://doi.org/10.1103/RevModPhys.89.041003

The coherent superposition of states, in combination with the quantization of observables, represents one of the most fundamental features that mark the departure of quantum mechanics from the classical realm. Quantum coherence in many-body systems e... Read More about Colloquium: quantum coherence as a resource.

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.

Optimal continuous variable quantum teleportation with limited resources (2017)
Journal Article
Liuzzo-Scorpo, P., Mari, A., Giovannetti, V., & Adesso, G. (2017). Optimal continuous variable quantum teleportation with limited resources. Physical Review Letters, 119(12), Article 120503. https://doi.org/10.1103/PhysRevLett.119.120503

Given a certain amount of entanglement available as a resource, what is the most efficient way to accomplish a quantum task? We address this question in the relevant case of continuous variable quantum teleportation protocols implemented using two-mo... Read More about Optimal continuous variable quantum teleportation with limited resources.

Optimal secure quantum teleportation of coherent states of light (2017)
Conference Proceeding
Liuzzo-Scorpo, P., & Adesso, G. (2017). Optimal secure quantum teleportation of coherent states of light. In C. Soci, K. Srinivasan, & M. Agio (Eds.), Proceedings Volume 10358, Quantum Photonic Devices. https://doi.org/10.1117/12.2272993

We investigate quantum teleportation of ensembles of coherent states of light with a Gaussian distributed displacement in phase space. Recently, the following general question has been addressed in [P. Liuzzo-Scorpo et al., arXiv:1705.03017]: Given a... Read More about Optimal secure quantum teleportation of coherent states of light.

From log-determinant inequalities to Gaussian entanglement via recoverability theory (2017)
Journal Article
Lami, L., Hirche, C., Adesso, G., & Winter, A. (in press). From log-determinant inequalities to Gaussian entanglement via recoverability theory. IEEE Transactions on Information Theory, 63(11), https://doi.org/10.1109/TIT.2017.2737546

Many determinantal inequalities for positive definite block matrices are consequences of general entropy inequalities, specialised to Gaussian distributed vectors with prescribed covariances. In particular, strong subadditivity (SSA) yields ln det VA... Read More about From log-determinant inequalities to Gaussian entanglement via recoverability theory.

Connecting measurement invasiveness to optimal metrological scenarios (2017)
Journal Article
Moreira, S. V., Adesso, G., Correa, L. A., Coudreau, T., Keller, A., & Milman, P. (2017). Connecting measurement invasiveness to optimal metrological scenarios. Physical Review A, 96(1), Article 012110. https://doi.org/10.1103/PhysRevA.96.012110

The connection between the Leggett-Garg inequality and optimal scenarios from the point of view of quantum metrology is investigated for perfect and noisy general dichotomic measurements. In this context, we show that the Fisher information can be ex... Read More about Connecting measurement invasiveness to optimal metrological scenarios.

Role of non-Markovianity and backflow of information in the speed of quantum evolution (2017)
Journal Article
Cianciaruso, M., Maniscalco, S., & Adesso, G. (2017). Role of non-Markovianity and backflow of information in the speed of quantum evolution. Physical Review A, 96(1), Article 012105. https://doi.org/10.1103/PhysRevA.96.012105

We consider a two-level open quantum system undergoing pure dephasing, dissipative, or multiply decohering dynamics and show that whenever the dynamics is non-Markovian, the initial speed of evolution is a monotonic function of the relevant physical... Read More about Role of non-Markovianity and backflow of information in the speed of quantum evolution.

Demonstration of monogamy relations for Einstein-Podolsky-Rosen steering in Gaussian cluster states (2017)
Journal Article
Deng, X., Xiang, Y., Tian, C., Adesso, G., He, Q., Gong, Q., …Peng, K. (2017). Demonstration of monogamy relations for Einstein-Podolsky-Rosen steering in Gaussian cluster states. Physical Review Letters, 118(23), https://doi.org/10.1103/PhysRevLett.118.230501

Understanding how quantum resources can be quantified and distributed over many parties has profound applications in quantum communication. As one of the most intriguing features of quantum mechanics, Einstein-Podolsky-Rosen (EPR) steering is a usefu... Read More about Demonstration of monogamy relations for Einstein-Podolsky-Rosen steering in Gaussian cluster states.

Estimating phase with a random generator: strategies and resources in multiparameter quantum metrology (2017)
Journal Article
Yousefjani, R., Nichols, R., Salimi, S., & Adesso, G. (in press). Estimating phase with a random generator: strategies and resources in multiparameter quantum metrology. Physical Review A, 95(6), Article 062307. https://doi.org/10.1103/PhysRevA.95.062307

Quantum metrology aims to exploit quantum phenomena to overcome classical limitations in the estimation of relevant parameters. We consider a probe undergoing a phase shift ? whose generator is randomly sampled according to a distribution with unknow... Read More about Estimating phase with a random generator: strategies and resources in multiparameter quantum metrology.

Versatile Gaussian probes for squeezing estimation (2017)
Journal Article
Rigovacca, L., Farace, A., Souza, L. A. M., De Pasquale, A., Giovannetti, V., & Adesso, G. (in press). Versatile Gaussian probes for squeezing estimation. Physical Review A, 95(5), Article 052331. https://doi.org/10.1103/PhysRevA.95.052331

We consider an instance of “black-box” quantum metrology in the Gaussian framework, where we aim to estimate the amount of squeezing applied on an input probe, without previous knowledge on the phase of the applied squeezing. By taking the quantum Fi... Read More about Versatile Gaussian probes for squeezing estimation.

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.

Non-Markovianity hierarchy of Gaussian processes and quantum amplification (2017)
Journal Article
Liuzzo-Scorpo, P., Roga, W., Souza, L. A., Bernardes, N. K., & Adesso, G. (2017). Non-Markovianity hierarchy of Gaussian processes and quantum amplification. Physical Review Letters, 118(5), Article 050401. https://doi.org/10.1103/PhysRevLett.118.050401

We investigate the dynamics of Gaussian states of continuous variable systems under Gaussianity-preserving channels. We introduce a hierarchy of such evolutions encompassing Markovian and weakly and strongly non-Markovian processes and provide simple... Read More about Non-Markovianity hierarchy of Gaussian processes and quantum amplification.

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.

Unconditional security of entanglement-based continuous-variable quantum secret sharing (2017)
Journal Article
Kogias, I., Xiang, Y., He, Q., & Adesso, G. (2017). Unconditional security of entanglement-based continuous-variable quantum secret sharing. Physical Review A, 95(1), https://doi.org/10.1103/PhysRevA.95.012315

The need for secrecy and security is essential in communication. Secret sharing is a conventional protocol to distribute a secret message to a group of parties, who cannot access it individually but need to cooperate in order to decode it. While seve... Read More about Unconditional security of entanglement-based continuous-variable quantum secret sharing.

Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications (2017)
Journal Article
Xiang, Y., Kogias, I., Adesso, G., & He, Q. (2017). Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications. Physical Review A, 95, Article 010101(R). https://doi.org/10.1103/PhysRevA.95.010101

We derive laws for the distribution of quantum steering among different parties in multipartite Gaussian states under Gaussian measurements. We prove that a monogamy relation akin to the generalized Coffman-Kundu-Wootters inequality holds quantitativ... Read More about Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications.