@article {Stasinska2012,
title = {Beyond pure state entanglement for atomic ensembles},
journal = {New Journal of Physics},
volume = {14},
number = {3},
year = {2012},
pages = {033034},
abstract = {We analyze multipartite entanglement between atomic ensembles within quantum matter{\textendash}light interfaces. In our proposal, a polarized light beam crosses sequentially several polarized atomic ensembles impinging on each of them at a given angle $\alpha$ i . These angles are crucial parameters for shaping the entanglement since they are directly connected to the appropriate combinations of the collective atomic spins that are squeezed. We exploit such a scheme to go beyond the pure state paradigm proposing realistic experimental settings to address multipartite mixed state entanglement in continuous variables.},
issn = {1367-2630},
doi = {10.1088/1367-2630/14/3/033034},
url = {http://stacks.iop.org/1367-2630/14/i=3/a=033034},
author = {Julia Stasi{\'n}ska and Paganelli, Simone and Sanpera, Anna}
}
@article {Stasinska_convergence,
title = {Convergence of expansions in Schr{\"o}dinger and Dirac eigenfunctions, with an application to the R-matrix theory},
journal = {J. Math. Phys.},
volume = {53},
year = {2012},
pages = {022101},
doi = {10.1063/1.3679763},
url = {http://arxiv.org/pdf/0912.2909v3},
author = {Julia Stasi{\'n}ska}
}
@article {Stasinska2011,
title = {Glass to superfluid transition in dirty bosons on a lattice},
journal = {New J. Phys.},
volume = {14},
year = {2012},
pages = {043043},
abstract = {We investigate the interplay between disorder and interactions in a Bose gas on a lattice in presence of randomly localized impurities. We compare the performance of two theoretical methods, the simple version of multi-orbital Hartree-Fock and the common Gross-Pitaevskii approach, showing how the former gives a very good approximation to the ground state in the limit of weak interactions, where the superfluid fraction is small. We further prove rigorously that for this class of disorder the fractal dimension of the ground state d* tends to the physical dimension in the thermodynamic limit. This allows us to introduce a quantity, the fractional occupation, which gives insightful information on the crossover from a Lifshits to a Bose glass. Finally, we compare temperature and interaction effects, highlighting similarities and intrinsic differences.},
doi = {10.1088/1367-2630/14/4/043043},
url = {http://arxiv.org/abs/1111.3494},
author = {Julia Stasi{\'n}ska and Massignan, Pietro and Bishop, Michael and Wehr, Jan and Sanpera, Anna and Lewenstein, Maciej}
}
@article {PhysRevLett.107.070401,
title = {Bell Inequalities with No Quantum Violation and Unextendable Product Bases},
journal = {Phys. Rev. Lett.},
volume = {107},
number = {7},
year = {2011},
month = {Aug},
pages = {070401},
publisher = {American Physical Society},
abstract = {The strength of classical correlations is subject to certain constraints, commonly known as Bell inequalities. Violation of these inequalities is the manifestation of nonlocality{\textemdash}displayed, in particular, by quantum mechanics, meaning that quantum mechanics can outperform classical physics at tasks associated with such Bell inequalities. Interestingly, however, there exist situations in which this is not the case. We associate an intriguing class of bound entangled states, constructed from unextendable product bases with a wide family of tasks, for which (i) quantum correlations do not outperform the classical ones but (ii) there exist supraquantum nonsignaling correlations that do provide an advantage.},
doi = {10.1103/PhysRevLett.107.070401},
author = {Remigiusz Augusiak and Julia Stasi{\'n}ska and Hadley, Christopher and Korbicz, Jaros{\l}aw K. and Lewenstein, Maciej and Ac{\'\i}n, Antonio}
}
@article {Rodo2009,
title = {Manipulating mesoscopic multipartite entanglement with atom-light interfaces},
journal = {Physical Review A (Atomic, Molecular, and Optical Physics)},
volume = {80},
number = {6},
year = {2009},
month = {12/2009},
pages = {062304{\textendash}8},
publisher = {APS},
abstract = {Entanglementbetween two macroscopic atomic ensembles induced by measurement on anancillary light system has proven to be a powerful methodfor engineering quantum memories and quantum state transfer. Here weinvestigate the feasibility of such methods for generation, manipulation, anddetection of genuine multipartite entanglement (Greenberger-Horne-Zeilinger and clusterlike states) betweenmesoscopic atomic ensembles without the need of individual addressing ofthe samples. Our results extend in a nontrivial way theEinstein-Podolsky-Rosen entanglement between two macroscopic gas samples reported experimentally in[B. Julsgaard, A. Kozhekin, and E. Polzik, Nature (London) 413,400 (2001)]. We find that under realistic conditions, a secondorthogonal light pulse interacting with the atomic samples, can modifyand even reverse the entangling action of the first oneleaving the samples in a separable state. {\textcopyright}2009 The American Physical Society},
keywords = {atom-photon collisions, EPR paradox, measurement theory, mesoscopic entanglement, multipartite entanglement, quantum entanglement, quantum optics},
url = {http://link.aps.org/abstract/PRA/v80/e062304},
author = {Julia Stasi{\'n}ska and Rod{\'o}, Carles and Paganelli, Simone and Sanpera, Anna and Birkl, G.}
}
@article {Augusiak2009_NJP,
title = {Positive maps, majorization, entropic inequalities and detection of entanglement},
journal = {New Journal of Physics},
volume = {11},
number = {5},
year = {2009},
month = {05/2009},
pages = {053018},
doi = {10.1088/1367-2630/11/5/053018},
url = {http://stacks.iop.org/1367-2630/11/i=5/a=053018},
author = {Remigiusz Augusiak and Julia Stasi{\'n}ska}
}