TY - JOUR
T1 - Indistinguishability-enabled coherence for quantum metrology
JF - Phys. Rev. A
Y1 - 2019
A1 - Castellini, Alessia
A1 - Lo Franco, Rosario
A1 - Lami, Ludovico
A1 - Winter, Andreas
A1 - Adesso, Gerardo
A1 - Compagno, Giuseppe
VL - 100
UR - https://link.aps.org/doi/10.1103/PhysRevA.100.012308
ER -
TY - JOUR
T1 - All phase-space linear bosonic channels are approximately Gaussian dilatable
JF - New Journal of Physics
Y1 - 2018
A1 - Lami, Ludovico
A1 - Sabapathy, Krishna Kumar
A1 - Winter, Andreas
VL - 20
JO - New J. Phys.
ER -
TY - JOUR
T1 - Gaussian quantum resource theories
JF - Physical Review A
Y1 - 2018
A1 - Lami, Ludovico
A1 - Regula, Bartosz
A1 - Wang, Xin
A1 - Nichols, Rosanna
A1 - Winter, Andreas
A1 - Adesso, Gerardo
VL - 987
UR - https://link.aps.org/doi/10.1103/PhysRevA.98.022335http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevA.98.022335/fulltexthttps://link.aps.org/article/10.1103/PhysRevA.98.022335
JO - Phys. Rev. A
ER -
TY - JOUR
T1 - Ultimate Data Hiding in Quantum Mechanics and Beyond
JF - Communications in Mathematical Physics
Y1 - 2018
A1 - Lami, Ludovico
A1 - Palazuelos, Carlos
A1 - Winter, Andreas
VL - 361
UR - http://link.springer.com/10.1007/s00220-018-3154-4http://link.springer.com/content/pdf/10.1007/s00220-018-3154-4.pdfhttp://link.springer.com/article/10.1007/s00220-018-3154-4/fulltext.htmlhttp://link.springer.com/content/pdf/10.1007/s00220-018-3154-4.pdf
JO - Commun. Math. Phys.
ER -
TY - JOUR
T1 - From Log-Determinant Inequalities to Gaussian Entanglement via Recoverability Theory
JF - IEEE Transactions on Information Theory
Y1 - 2017
A1 - Lami, Ludovico
A1 - Hirche, Christoph
A1 - Adesso, Gerardo
A1 - Winter, Andreas
VL - 63
UR - http://ieeexplore.ieee.org/document/8004445/http://xplorestaging.ieee.org/ielx7/18/8071168/08004445.pdf?arnumber=8004445
JO - IEEE Trans. Inform. Theory
ER -
TY - JOUR
T1 - Genuine-multipartite entanglement criteria based on positive maps
JF - JOURNAL OF MATHEMATICAL PHYSICS
Y1 - 2017
A1 - Clivaz, Fabien
A1 - Huber, Marcus
A1 - Lami, Ludovico
A1 - Murta, Glaucia
AB - Positive maps applied to a subsystem of a bipartite quantum state constitute a central tool in characterising entanglement. In the multipartite case, however, the direct application of a positive but not completely positive map cannot distinguish if a state is genuinely multipartite entangled or just entangled across some bipartition. We thus generalise this bipartite concept to the multipartite setting by introducing non-positive maps that are positive on the subset of biseparable states but can map to a non-positive element if applied to a genuine multipartite entangled state. We explicitly construct examples of multipartite non-positive maps, obtained from positive maps via a lifting procedure, that in this fashion can reveal genuine multipartite entanglement in a robust way. Published by AIP Publishing.
VL - 58
ER -
TY - JOUR
T1 - Bipartite depolarizing maps
JF - Journal of Mathematical Physics
Y1 - 2016
A1 - Lami, Ludovico
A1 - Huber, Marcus
AB - We introduce a 3-parameter class of maps (1) acting on a bipartite system which are a natural generalisation of the depolarizing channel (and include it as a special case). Then, we find the exact regions of the parameter space that alternatively determine a positive, completely positive, entanglement-breaking, or entanglement-annihilating map. This model displays a much richer behaviour than the one shown by a simple depolarizing channel, yet it stays exactly solvable. As an example of this richness, positive partial transposition but not entanglement-breaking maps is found in Theorem 2. A simple example of a positive yet indecomposable map is provided (see the Remark at the end of Section IV). The study of the entanglement-annihilating property is fully addressed by Theorem 7. Finally, we apply our results to solve the problem of the entanglement annihilation caused in a bipartite system by a tensor product of local depolarizing channels. In this context, a conjecture posed in the work of Filippov [J. Russ. Laser Res. 35, 484 (2014)] is affirmatively answered, and the gaps that the imperfect bounds of Filippov and Ziman [Phys. Rev. A 88, 032316 (2013)] left open are closed. To arrive at this result, we furthermore show how the Hadamard product between quantum states can be implemented via local operations.
VL - 57
UR - http://aip.scitation.org/doi/10.1063/1.4962339
ER -
TY - JOUR
T1 - Conditional and unconditional Gaussian quantum dynamics
JF - Contemporary Physics
Y1 - 2016
A1 - Genoni, Marco G.
A1 - Lami, Ludovico
A1 - Serafini, Alessio
JO - Contemporary Physics
ER -
TY - JOUR
T1 - Schur Complement Inequalities for Covariance Matrices and Monogamy of Quantum Correlations
JF - Physical Review Letters
Y1 - 2016
A1 - Lami, Ludovico
A1 - Hirche, Christoph
A1 - Adesso, Gerardo
A1 - Winter, Andreas
VL - 117
UR - http://link.aps.org/doi/10.1103/PhysRevLett.117.220502http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.117.220502/fulltexthttp://link.aps.org/article/10.1103/PhysRevLett.117.220502
JO - Phys. Rev. Lett.
ER -