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  • 1
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    Nonmonotonic entanglement of physical electromagnetic field states in noninertial frames (2012)
    American Physical Society (APS)
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    Publication Date: 2012-07-06
    Description: Author(s): Miguel Montero, Marco del Rey, and Eduardo Martín-Martínez We develop a general technique to analyze the quantum effects of acceleration on realistic spatially localized electromagnetic field states entangled in the polarization degree of freedom. We show that for this setting, quantum entanglement may build up as the acceleration increases, providing a cle... [Phys. Rev. A 86, 012304] Published Thu Jul 05, 2012
    Keywords: Quantum information
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
    Published by American Physical Society (APS)
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  • 2
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    Reply to “Comment on ‘Fermionic entanglement ambiguity in noninertial frames’ ” (2012)
    American Physical Society (APS)
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    Publication Date: 2012-01-18
    Description: Author(s): Miguel Montero and Eduardo Martín-Martínez We show that, contrary to the claims of the preceding Comment [ Brádler and Jáuregui Phys. Rev. A 85 016301 (2012) ], our original work [ Phys. Rev. A 83 062323 (2011) ] is devoid of flaws or mistakes. We show that the criticism comes from a misunderstanding of part of our work. [Phys. Rev. A 85, 016302] Published Tue Jan 17, 2012
    Keywords: Quantum information
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
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  • 3
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    Temperature-independent quantum logic for molecular spectroscopy (2012)
    American Physical Society (APS)
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    Publication Date: 2012-02-07
    Description: Author(s): Jordi Mur-Petit, Juan José García-Ripoll, Jesús Pérez-Ríos, José Campos-Martínez, Marta I. Hernández, and Stefan Willitsch We propose a fast and nondestructive spectroscopic method for single molecular ions that implements quantum logic schemes between an atomic ion and the molecular ion of interest. Our proposal relies on a hybrid coherent manipulation of the two-ion system, using optical or magnetic forces depending o... [Phys. Rev. A 85, 022308] Published Mon Feb 06, 2012
    Keywords: Quantum information
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    Electronic ISSN: 1094-1622
    Topics: Physics
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  • 4
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    Convergence of fermionic-field entanglement at infinite acceleration in relativistic quantum information (2012)
    American Physical Society (APS)
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    Publication Date: 2012-02-14
    Description: Author(s): Miguel Montero and Eduardo Martín-Martínez We provide a simple argument showing that in the limit of infinite acceleration, the entanglement in a fermionic-field bipartite system must be independent of the choice of Unruh modes. This implies that most tensor product structures used previously to compute field entanglement in relativistic qua... [Phys. Rev. A 85, 024301] Published Mon Feb 13, 2012
    Keywords: Quantum information
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    Electronic ISSN: 1094-1622
    Topics: Physics
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  • 5
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    Asymmetric segregation of polarized antigen on B cell division shapes presentation capacity (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-01-28
    Description: During the activation of humoral immune responses, B cells acquire antigen for subsequent presentation to cognate T cells. Here we show that after mouse B cells accumulate antigen, it is maintained in a polarized distribution for extended periods in vivo. Using high-throughput imaging flow cytometry, we observed that this polarization is preserved during B cell division, promoting asymmetric antigen segregation among progeny. Antigen inheritance correlates with the ability of progeny to activate T cells: Daughter cells receiving larger antigen stores exhibit a prolonged capacity to present antigen, which renders them more effective in competing for T cell help. The generation of progeny with differential capacities for antigen presentation may have implications for somatic hypermutation and class switching during affinity maturation and as B cells commit to effector cell fates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thaunat, Olivier -- Granja, Aitor G -- Barral, Patricia -- Filby, Andrew -- Montaner, Beatriz -- Collinson, Lucy -- Martinez-Martin, Nuria -- Harwood, Naomi E -- Bruckbauer, Andreas -- Batista, Facundo D -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2012 Jan 27;335(6067):475-9. doi: 10.1126/science.1214100.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lymphocyte Interaction Laboratory, London Research Institute, Cancer Research UK, 44 Lincoln's Inn Fields, London, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22282815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; Antigens/*analysis/*immunology ; B-Lymphocytes/cytology/*immunology ; Cell Division ; Cell Proliferation ; Cells, Cultured ; Coculture Techniques ; Computer Simulation ; Flow Cytometry ; *Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Models, Immunological ; Muramidase/analysis/immunology ; T-Lymphocytes/*immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Fate-restricted neural progenitors in the mammalian cerebral cortex (2012)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2012-08-11
    Description: During development of the mammalian cerebral cortex, radial glial cells (RGCs) generate layer-specific subtypes of excitatory neurons in a defined temporal sequence, in which lower-layer neurons are formed before upper-layer neurons. It has been proposed that neuronal subtype fate is determined by birthdate through progressive restriction of the neurogenic potential of a common RGC progenitor. Here, we demonstrate that the murine cerebral cortex contains RGC sublineages with distinct fate potentials. Using in vivo genetic fate mapping and in vitro clonal analysis, we identified an RGC lineage that is intrinsically specified to generate only upper-layer neurons, independently of niche and birthdate. Because upper cortical layers were expanded during primate evolution, amplification of this RGC pool may have facilitated human brain evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4287277/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4287277/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Franco, Santos J -- Gil-Sanz, Cristina -- Martinez-Garay, Isabel -- Espinosa, Ana -- Harkins-Perry, Sarah R -- Ramos, Cynthia -- Muller, Ulrich -- MH078833/MH/NIMH NIH HHS/ -- NS046456/NS/NINDS NIH HHS/ -- NS060355/NS/NINDS NIH HHS/ -- R01 NS046456/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2012 Aug 10;337(6095):746-9. doi: 10.1126/science.1223616.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dorris Neuroscience Center and Department of Cell Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22879516" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Lineage ; Cell Proliferation ; Cells, Cultured ; Cerebral Cortex/*cytology/embryology ; Homeodomain Proteins/genetics ; Mice ; Neural Stem Cells/*cytology/physiology ; *Neurogenesis ; Neuroglia/*cytology ; Neurons/*cytology/physiology ; Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Fundamental limitations to information transfer in accelerated frames (2012)
    American Physical Society (APS)
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    Publication Date: 2012-12-14
    Description: Author(s): Eduardo Martín-Martínez, Dominic Hosler, and Miguel Montero We study communication between an inertial observer and one of two causally disconnected counteraccelerating observers. We will restrict the quantum channel considering inertial-to-accelerated bipartite classical and quantum communication over different sets of Unruh modes (single-rail or dual-rail ... [Phys. Rev. A 86, 062307] Published Fri Dec 07, 2012
    Keywords: Quantum information
    Print ISSN: 1050-2947
    Electronic ISSN: 1094-1622
    Topics: Physics
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  • 8
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    Statistical portrait of the entanglement decay of two-qubit memories (2012)
    American Physical Society (APS)
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    Publication Date: 2012-10-19
    Description: Author(s): Karen M. Fonseca-Romero, Julián Martínez-Rincón, and Carlos Viviescas We present an approach to the study of entanglement decay which focuses on collective properties. As an example, we investigate the entanglement decay of a two-qubit system produced by local identical reservoirs acting on the qubits for three experimentally and theoretically relevant cases. We study... [Phys. Rev. A 86, 042325] Published Thu Oct 18, 2012
    Keywords: Quantum information
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    Electronic ISSN: 1094-1622
    Topics: Physics
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