In this paper, we introduce intrinsic non-locality and quantum intrinsic non-locality as quantifiers for Bell non-locality, and we prove that they satisfy certain desirable properties such as faithfulness, convexity, and monotonicity under local operations and shared randomness. We then prove that intrinsic non-locality is an upper bound on the secret-key-agreement capacity of any device-independent protocol conducted using a device characterized by a correlation p, while quantum intrinsic non-locality is an upper bound on the same capacity for a correlation arising from an underlying quantum model. We also prove that intrinsic steerability is faithful, and it is an upper bound on the secret-key-agreement capacity of any one-sided-device-independent protocol conducted using a device characterized by an assemblage . Finally, we prove that quantum intrinsic non-locality is bounded from above by intrinsic steerability.

}, doi = {10.1088/1367-2630/ab6eaa}, url = {https://doi.org/10.1088/1367-2630/ab6eaa}, author = {Eneet Kaur and Mark M Wilde and Andreas Winter} } @article {989, title = {Frustrated quantum spin systems in small triangular lattices studied with a numerical method}, journal = {Phys. Rev. B}, volume = {100}, year = {2019}, month = {Oct}, pages = {155119}, doi = {10.1103/PhysRevB.100.155119}, url = {https://link.aps.org/doi/10.1103/PhysRevB.100.155119}, author = {Castells-Graells, D. and Yuste, A. and Sanpera, A.} } @article {837, title = {Feynman graphs and the large dimensional limit of multipartite entanglement}, journal = {Journal of Mathematical Physics}, volume = {59}, year = {2018}, month = {Jan-01-2018}, pages = {012201}, issn = {0022-2488}, doi = {10.1063/1.5019481}, url = {http://aip.scitation.org/doi/10.1063/1.5019481http://aip.scitation.org/doi/pdf/10.1063/1.5019481}, author = {Di Martino, Sara and Facchi, Paolo and Florio, Giuseppe} } @article {894, title = {Fluctuation-dissipation theorem for non-equilibrium quantum systems}, journal = {Quantum}, volume = {2}, year = {2018}, month = {Dec-05-2019}, pages = {66}, doi = {10.22331/q10.22331/q-2018-05-24-66}, url = {https://quantum-journal.orghttps://quantum-journal.org/papers/q-2018-05-24-66/}, author = {Mehboudi, Mohammad and Sanpera, Anna and Parrondo, Juan M. R.} } @article {friis_flexible_2017, title = {Flexible resources for quantum metrology}, journal = {New Journal of Physics}, volume = {19}, number = {6}, year = {2017}, pages = {063044}, abstract = {Quantum metrology offers a quadratic advantage over classical approaches to parameter estimation problems by utilising entanglement and nonclassicality. However, the hurdle of actually implementing the necessary quantum probe states and measurements, which vary drastically for different metrological scenarios, is usually not taken into account. We show that for a wide range of tasks in metrology, 2D cluster states (a particular family of states useful for measurement-based quantum computation) can serve as flexible resources that allow one to efficiently prepare any required state for sensing, and perform appropriate (entangled) measurements using only single qubit operations. Crucially, the overhead in the number of qubits is less than quadratic, thus preserving the quantum scaling advantage. This is ensured by using a compression to a logarithmically sized space that contains all relevant information for sensing. We specifically demonstrate how our method can be used to obtain optimal scaling for phase and frequency estimation in local estimation problems, as well as for the Bayesian equivalents with Gaussian priors of varying widths. Furthermore, we show that in the paradigmatic case of local phase estimation 1D cluster states are sufficient for optimal state preparation and measurement.}, issn = {1367-2630}, doi = {10.1088/1367-2630/aa7144}, url = {http://stacks.iop.org/1367-2630/19/i=6/a=063044}, author = {Friis, Nicolai and Orsucci, Davide and Skotiniotis, Michalis and Sekatski, Pavel and Dunjko, Vedran and Briegel, Hans J. and D{\"u}r, Wolfgang} } @article {892, title = {From Log-Determinant Inequalities to Gaussian Entanglement via Recoverability Theory}, journal = {IEEE Transactions on Information Theory}, volume = {63}, year = {2017}, month = {Jan-11-2017}, pages = {7553 - 7568}, issn = {0018-9448}, doi = {10.1109/TIT.2017.2737546}, url = {http://ieeexplore.ieee.org/document/8004445/http://xplorestaging.ieee.org/ielx7/18/8071168/08004445.pdf?arnumber=8004445}, author = {Lami, Ludovico and Hirche, Christoph and Adesso, Gerardo and Winter, Andreas} } @article {brunner_fifty_2014, title = {Fifty years of Bell{\textquoteright}s theorem}, journal = {Journal of Physics A: Mathematical and Theoretical}, volume = {47}, number = {42}, year = {2014}, month = {oct}, pages = {420301}, issn = {1751-8113, 1751-8121}, doi = {10.1088/1751-8113/47/42/420301}, url = {http://stacks.iop.org/1751-8121/47/i=42/a=420301?key=crossref.9d548f14fc7338685392dcd6228de98d}, author = {Nicolas Brunner and G{\"u}hne, Otfried and Huber, Marcus} } @article {684, title = {Full Security of Quantum Key Distribution From No-Signaling Constraints}, journal = {IEEE Transactions on Information Theory}, volume = {60}, number = {8}, year = {2014}, month = {8/2014}, pages = {4973-4986}, issn = {1557-9654}, doi = {10.1109/TIT.2014.2329417}, author = {Masanes, Lluis and Renner, Renato and Christandl, Matthias and Winter, Andreas and Barrett, Jonathan} } @article {303, title = {From Vector Meson Dominance to Quark-Hadron Duality}, journal = {Il Nuovo Cimento}, volume = {35C}, year = {2012}, pages = {9-14}, abstract = {A short review of the many contributions to hadron physics made by Mario Greco is presented. The review roughly covers his production between1971 and 1974, just before the advent of QCD, when quark-model ideas, duality principles and vector meson dominance were widely accepted, developed and applied. The present author had the privilege to collaborate with Mario in most of these contributions and looking backward in time to remember the good old days we spent together in Frascati has been a great pleasure.}, doi = {10.1393/ncc/i2012-11133-9}, url = {http://arxiv.org/abs/1203.4205}, author = {Bramon, Albert} } @article {SenDe2008, title = {Frustration, Area Law, and Interference in Quantum Spin Models}, journal = {Physical Review Letters}, volume = {101}, number = {18}, year = {2008}, month = {10/2008}, pages = {187202{\textendash}4}, doi = {10.1103/PhysRevLett.101.187202}, url = {http://link.aps.org/abstract/PRL/v101/e187202}, author = {Sen(De), Aditi and Sen, Ujjwal and Dziarmaga, Jacek and Sanpera, Anna and Lewenstein, Maciej} } @article {Baig2004, title = {Fixed boundary conditions analysis of the 3d gonihedric Ising model with k=0}, journal = {Physics Letters B}, volume = {585}, number = {1-2}, year = {2004}, pages = {180{\textendash}186}, abstract = {The gonihedric Ising model is a particular case of the class of models defined by Savvidy and Wegner intended as discrete versions of string theories on cubic lattices. In this Letter we perform a high statistics analysis of the phase transition exhibited by the 3d gonihedric Ising model with k=0 in the light of a set of recently stated scaling laws applicable to first order phase transitions with fixed boundary conditions. Even though qualitative evidence was presented in a previous paper to support the existence of a first order phase transition at k=0, only now are we capable of pinpointing the transition inverse temperature at $\beta$c=0.54757(63) and of checking the scaling of standard observables.}, keywords = {Author Keywords: Spin systems, Fixed boundary conditions, Gonihedric models, Phase transitions}, doi = {10.1016/j.physletb.2004.02.002}, url = {http://www.sciencedirect.com/science?\_ob=ArticleURL\&\_udi=B6TVN-4BSN95Y-3\&\_user=1517286\&\_coverDate=04\%2F08\%2F2004\&\_rdoc=1\&\_fmt=high\&\_orig=search\&\_sort=d\&\_docanchor=\&view=c\&\_acct=C000053449\&\_version=1\&\_urlVersion=0\&\_userid=1517286\&md5=b8fb559f9}, author = {Baig, Mari{\`a} and Clua, J. and Johnston, D. A. and Villanova, R.} } @article {Salieres2001, title = {Feynman{\textquoteright}s path-integral approach for intense-laser-atom interactions}, journal = {Science (New York, N.Y.)}, volume = {292}, number = {5518}, year = {2001}, pages = {902{\textendash}5}, abstract = {Atoms interacting with intense laser fields can emit electrons and photons of very high energies. An intuitive and quantitative explanation of these highly nonlinear processes can be found in terms of a generalization of classical Newtonian particle trajectories, the so-called quantum orbits. Very few quantum orbits are necessary to reproduce the experimental results. These orbits are clearly identified, thus opening the way for an efficient control as well as previously unknown applications of these processes.}, issn = {0036-8075}, doi = {10.1126/science.108836}, url = {http://www.sciencemag.org/cgi/content/abstract/292/5518/902}, author = {Salieres, P. and Carre, B. and Le Deroff, L. and Grasbon, F. and Paulus, G. G. and Walther, H. and Kopold, R. and Becker, W. and Milosevic, D. B. and Sanpera, A. and Lewenstein, M.} } @conference { ISI:000448139300404, title = {{Fully Quantum Arbitrarily Varying Channels: Random Coding Capacity and Capacity Dichotomy}}, booktitle = {{2018 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY (ISIT)}}, series = {{IEEE International Symposium on Information Theory}}, note = {{IEEE International Symposium on Information Theory (ISIT), Vail, CO, JUN 17-22, 2018}}, pages = {{2012-2016}}, publisher = {{IEEE; IEEE Informat Theory Soc; NSF; Huawei; Qualcomm}}, organization = {{IEEE; IEEE Informat Theory Soc; NSF; Huawei; Qualcomm}}, abstract = {{We consider a model of communication via a fully quantum jammer channel with quantum jammer, quantum sender and quantum receiver, which we dub quantum arbitrarily varying channel (QAVC). Restricting to finite dimensional user and jammer systems, we show, using permutation symmetry and a de Finetti reduction, how the random coding capacity (classical and quantum) of the QAVC is reduced to the capacity of a naturally associated compound channel, which is obtained by restricting the jammer to i.i.d. input states. Furthermore, we demonstrate that the shared randomness required is at most logarithmic in the block length, via a quantum version of the {\textquoteleft}{\textquoteleft}elimination of of correlation{{\textquoteright}{\textquoteright}} using a random matrix tail bound. This implies a dichotomy theorem: either the classical capacity of the QAVC is zero, and then also the quantum capacity is zero, or each capacity equals its random coding variant.}}, isbn = {{978-1-5386-4781-3}}, author = {Boche, Holger and Deppe, Christian and Noetzel, Janis and Winter, Andreas} }